Nationality decides it. Citizens of the European Union, of the EEA states Norway, Iceland and Liechtenstein, and of Switzerland need no work permit and no residence permit to take a job in Luxembourg. Everyone else is a third-country national and needs an authorisation in hand before entering the country to work. The order of events therefore reverses: the authorisation is applied for and granted before travel, and there is no route on which the person arrives, takes the job and regularises afterwards.

The no-permit group still has paperwork. An EU, EEA or Swiss citizen files a déclaration d’arrivée (declaration of arrival) at the commune where they live within eight days of arriving, then a déclaration d’enregistrement (registration declaration) within three months. The commune asks an employee for a valid identity card or passport plus either an employment contract drawn up to Luxembourg labour law and signed by both parties, or a signed and dated job offer. An accessory activity of under ten hours a week is not enough to support the registration.

Several routes exist: the salarié (salaried worker) authorisation, the carte bleue européenne (EU Blue Card) for highly qualified roles, the intra-corporate transfer permit for a manager, expert or trainee moving within the same group, and specialised routes for researchers, students, seasonal workers, the self-employed and investors. An employer hiring a named candidate onto a Luxembourg contract uses one of the first two almost every time, and Employer of Record Luxembourg sees the salaried worker route most often.

The salaried worker route runs in a fixed order, and the first two steps belong to the employer. Nothing happens out of sequence: the immigration file cannot be opened without the ADEM certificate, and the certificate cannot be requested before the post has been declared vacant.

• Employer, step 1. Declare the vacant post to ADEM, the public employment service, as a déclaration de poste vacant, through the ADEM JobBoard or the employer space, before the job is published anywhere else. It is valid two months.
• Employer, step 2. Ask ADEM by email for the certificate authorising recruitment of a third-country national; it is acknowledged within two working days. Where the post is on the métiers très en pénurie list of severe shortage occupations, the certificate follows within five working days and no labour market test is run. Otherwise ADEM has seven working days to look for suitable registered jobseekers, fifteen further working days to put candidates forward, the employer then one month to justify rejecting them, and the certificate follows within ten working days if nobody suitable emerges. It is valid three months and cannot be extended.
• Employee, step 3. Apply for the autorisation de séjour temporaire (temporary authorisation to stay) from outside Luxembourg. The application belongs to the future employee, who can give the employer power of attorney to file it, and goes to the Direction générale de l’immigration at the Ministère des Affaires intérieures or to a Luxembourg consular post. It carries a passport copy, a criminal record extract, a CV, diplomas, the signed employment contract and the ADEM certificate. The ministry’s stated response time is in principle four months at most, and the authorisation is then valid ninety days to obtain a visa and enter.
• Employee, step 4. Obtain a type D visa where the nationality requires one, from a Luxembourg diplomatic mission or a Schengen partner representing Luxembourg, using the authorisation already granted. Maximum validity three months.
• Employee, step 5. File the déclaration d’arrivée at the commune of residence within three days of arriving. The receipt matters: it acts as a temporary work and residence authorisation until the permit is issued.
• Employee, step 6. Sit the medical examination with an authorised Luxembourg doctor, with tuberculosis screening at a laboratory or the Ligue médico-sociale.
• Employee, step 7. Apply for the titre de séjour (residence permit) within three months of arrival, through MyGuichet.lu or by post, with proof of payment of the €80 fee. A biometrics appointment follows approval.

One published timing needs care. ADEM’s page sets out the working-day timetable above; the Guichet.lu employer page gives a flatter figure of about three weeks before the certificate can be requested. ADEM administers the test, so plan against its timetable and treat the stage as three weeks to two months depending on the shortage list.

The permit at the end is narrower than employers expect. A first residence permit on this route lasts a maximum of one year and covers one profession and one sector, identified by its occupational code. From the first renewal it can run up to three years across all sectors and professions where continuous employment is shown, and where it is not it is again limited to one year.

The EU Blue Card is the faster route for a highly qualified hire, because no labour market test applies to it. The 2026 conditions come from a ministerial regulation of 23 February 2026, in force from 3 March 2026: gross annual remuneration of at least €65,652, a contract of at least six months, a decision within a maximum of three months, and an €80 fee. The card is valid for four years, or the contract duration plus three months where that is shorter, on first issue and on renewal.

Say plainly when it wins. Where the role is genuinely highly qualified, the salary is at or above €65,652 and the contract runs six months or more, the Blue Card is normally the route to choose, because the ADEM certificate stage falls away and the decision clock is three months rather than four. Everything after the offer is unchanged: the employee still applies from outside Luxembourg, obtains a visa where one is required, registers at the commune, sits the medical examination and applies for the permit after arriving. A salary sitting slightly under the threshold is therefore worth a second look before the offer goes out.

One caution on the number. Luxembourg’s official guidance publishes a single figure of €65,652 as the required annual remuneration. Lower thresholds are sometimes quoted for shortage occupations and recent graduates, and a higher one is sometimes derived by treating €65,652 as an average to be multiplied. Neither appears on the official pages, so budget against €65,652 and check anything else against the regulation before an offer relies on it.

One further difference shows up after arrival. A Blue Card runs for four years from the start, where a first permit on the salaried worker route lasts a year and covers one profession and one sector, so the Blue Card buys stability as well as speed.

No Luxembourg authority publishes an end-to-end average, so any figure quoted as one is an estimate rather than a statistic. What can be done honestly is to add the published maximum for each stage and call the result a planning range. On that basis the salaried worker route lands at roughly four to seven months from filing the ADEM vacancy declaration to the employee lawfully working.

The arithmetic shows which stage to attack. The ADEM stage runs from about three weeks for a shortage occupation to six or eight weeks where a labour market test is actually carried out, the autorisation de séjour temporaire then takes up to four months, and the visa, the travel and the arrival formalities sit on top. A Blue Card file removes the ADEM stage and shortens the decision to three months.

Three things move the date. Whether the occupation is on ADEM’s shortage list can turn six weeks into five working days. The completeness of the file matters, since a criminal record extract or a diploma from a third country is often the slowest document to obtain. And the ADEM certificate’s three-month validity cannot be extended, so the immigration application has to be lodged while it is still live.

The practical consequence is to set the start date after the authorisation, never before it. The contract is signed long in advance, and has to be, because it is one of the documents in the immigration file. Our step-by-step guide to hiring in Luxembourg sets the same timetable against the much shorter one for an EU national.

Immigration status changes no employment right in Luxembourg. A third-country national on a first one-year permit has the same written contract, the same 26 working days of paid annual leave, the same 11 public holidays, the same notice periods and the same sick pay protection as a Luxembourg citizen in the same job. The Code du travail attaches to the work performed in the Grand Duchy, not to the passport of the person performing it.

Three employer duties sit around every hire. The contract is in writing, in two signed originals, at the latest on the first day of work, carrying the particulars at Article L.121-4 of the Code du travail and drawn up in a language the employee genuinely understands. The employee is declared to the Centre commun de la sécurité sociale (CCSS) within eight days of the start date. The fiche de retenue d’impôt (tax card) comes from the Administration des contributions directes (ACD), and without it the withholding defaults to a minimum rate.

One sequencing detail is specific to third-country nationals. The Direction générale de l’immigration creates the social security identification number after checking the work authorisation, and the CCSS entry declaration is filed once that number and the permit are in hand. The contract exists months earlier, because it is part of the immigration file.

Pay follows the same rules as any other Luxembourg contract. The salary has to clear the salaire social minimum (SSM), €2,771.33 a month for an unskilled adult worker and €3,325.59 for a skilled one from 1 June 2026, and it rises with the wage index by 2.5% whenever the trigger is reached, with no employer discretion. For a relocating senior hire the régime des impatriés is worth raising with a tax adviser, since it exempts 50% of remuneration from income tax within its caps, subject to a minimum annual base salary of €75,000.

An Employer of Record does not make a Luxembourg permit arrive any faster, and a provider who says otherwise is selling something it does not control. The clocks in this article belong to ADEM and to the Direction générale de l’immigration.

What an EOR can carry is the employer’s side of the file: declaring the vacant post to ADEM and requesting the certificate, issuing the Luxembourg contract that goes into the immigration application, filing the CCSS entry declaration once the authorisation is through, obtaining the tax card and running payroll. Our Luxembourg service covers those steps for a flat fee from €499 per employee per month; the €80 permit fee is a separate state charge.

One structural point decides how the arrangement is built. The authorisation attaches to employment with a named employer, so the entity on the contract and the entity in the application must be the same one. Where an EOR is the legal employer, it is the entity that appears throughout, and the client company directs the work under a services agreement. A later switch of employer, to a Luxembourg company of your own, is an immigration step rather than an administrative one.

Some parts stay with the individual whoever employs them. The medical examination, the biometrics appointment, the criminal record extract and the visa interview are personal to the applicant, and the declaration of arrival is filed by the person at their commune. A provider prepares and chases those; it cannot sit them. For a UK employer, whose nationals became third-country nationals after Brexit, see our note on hiring in Luxembourg as a UK company.

A frontalier is an employee of a Luxembourg employer who lives across the border in Belgium, France or Germany and travels in to work. A large share of everyone on a Luxembourg payroll lives in one of those three countries, which is why the category shapes recruitment, pay and administration here in a way it does in few other markets. An employer arriving from outside should expect cross-border candidates on the shortlist rather than treat them as an exception.

The reason is arithmetic rather than policy. Luxembourg employs far more people than its resident population could supply, and the surrounding region makes up the difference. France supplies the largest group of commuters, with Belgium and Germany behind it. Salaries and the density of financial and professional services employers pull workers across the border, and employers on the Luxembourg side compete for them against employers on the other side of it.

The employment relationship itself does not change. A frontalier signs a Luxembourg contract governed by the Code du travail, with the same salaire social minimum floor, the same 26 working days of paid annual leave and 11 public holidays, the same notice periods and the same protection against dismissal as a colleague living in Luxembourg City. Employing through Employer of Record Luxembourg works identically for a resident and for a commuter, because the contract and the payroll sit in Luxembourg in both cases.

What changes sits around the edges of that contract, and it is administrative rather than contractual: which country insures the person, which country taxes each working day, which tax class the employee’s card carries, and what the employer has to write down.

Someone employed in Luxembourg is affiliated to Luxembourg social security whatever country they sleep in. Regulation (EC) No 883/2004, which coordinates the social security systems of the EU member states, applies the principle of lex loci laboris, the law of the place of work. An employee whose work is physically performed in Luxembourg is covered by the Luxembourg system for health and maternity, pension, accident insurance and long-term care, with no parallel affiliation across the border.

For the employer that means one registration and one set of contributions. The déclaration d’entrée is filed with the Centre commun de la sécurité sociale (CCSS) within eight days of the start date, and an employee who has never worked in Luxembourg first needs a matricule assuré, the social security number, requested from the CCSS first. Contributions then run at Luxembourg rates: around 13.29% of gross on the employer side for a standard commercial employer and 12.95% on the employee side, most branches stopping at the plafond cotisable, the contribution ceiling. Our guide to social security and pensions in Luxembourg sets out the branches behind those totals.

Healthcare is the part the employee notices. Cover comes from the Caisse nationale de santé (CNS) and pays for treatment in Luxembourg, while a worker living across the border may in addition register for healthcare cover in the country where they live, so that a doctor near home is covered under the same coordination rules. That second registration is the employee’s to arrange, and it creates no second set of employer contributions.

The single affiliation holds only while the work stays in Luxembourg. Once an employee performs a substantial part of the work at home across the border, the coordination rules can move the whole relationship into the residence country’s system, obliging the employer to register and contribute there on the full salary. A declaration to the CCSS under the framework agreement on cross-border telework prevents that in the middle band, and the thresholds are set out in our guide to remote work in Luxembourg.

Income tax on a frontalier’s salary is withheld in Luxembourg, through the retenue d’impôt sur les traitements et salaires, because the work is performed there. Each of the three treaties gives the taxing right over employment income to the country where the work is physically carried out, so a day worked across the border belongs in principle to the country of residence, and each tolerates a number of those days before the tax moves.

That tolerance stands at 34 days a calendar year for Belgium, France and Germany alike as at 20 September 2026, and the three arrived there by different routes. Belgium rose from 24 days under an avenant to its treaty with Luxembourg, applying from income year 2022. France rose from 29 days under the avenant of 7 November 2022 to the treaty of 20 March 2018, applying from 1 January 2023. Germany rose from 19 days under an amending protocol signed on 6 July 2023, applying from 1 January 2024. The Belgian and German positions rest on secondary sources, so confirm them with an adviser.

The count covers any working day spent outside Luxembourg, business travel and training abroad included, and the three differ on how a partial day is counted. France treats any fraction of a day as a full day, on a test of actual physical presence, and cuts the 34 days proportionally for part-time employees and mid-year joiners. Germany counts a day only where the activity there lasted at least thirty minutes. No equivalent Belgian rule was confirmed for this article, so Belgian days are best counted as France counts them.

Passing the tolerance is not marginal. For a French resident, days worked in France become taxable there from the first day of the year rather than the thirty-fifth, the salary is apportioned, and the employer needs a French registration and monthly filings. For Belgian and German residents the treaties work by exemption with progression, and no equivalent filing duty was identified for a Luxembourg employer in either country, which is again secondary-sourced. Our guide to remote work in Luxembourg sets out the mechanics.

A non-resident employee is placed in tax class 1 by default, without regard to their family situation. The tax card, the fiche de retenue d’impôt, is issued for non-residents by the RTS Non-résidents office of the Administration des contributions directes (ACD) on form 164 NR, and since 1 January 2022 the ACD sends the electronic copy straight to the employer. A married employee living in Luxembourg would ordinarily sit in class 2; a married employee commuting from Belgium, France or Germany does not, unless the couple is assessed jointly and meets the conditions for assimilation. Where the employer holds no valid card at all, it must apply the most onerous treatment, class 1 at a rate that cannot be lower than 33%, so chasing the card is an onboarding task.

Assimilation is an option the employee exercises, not a status that arrives by itself. A non-resident who meets the conditions may ask to be treated as a Luxembourg resident taxpayer, which opens up classes 1a and 2 and the deductions a resident can claim. The conditions sit in Article 157ter of the income tax law and are usually described in terms of the share of worldwide income taxable in Luxembourg, with a separate rule for residents of Belgium. The precise thresholds were not read from a primary source for this article, so check them with the ACD before building an offer around them.

For an employer the practical consequence is that gross is the only number worth quoting, because two employees on the same gross salary, one resident and one commuting in, can take home different amounts. Quote gross, then state the assumptions behind any net illustration: tax class, country of residence, family position and which contributions are included. Our note on how Luxembourg payroll works sets out the same calculation on a payslip.

Four duties attach to a cross-border employee that never arise for a resident, and the first is to record where each day was worked. The employer keeps an up-to-date work calendar showing the place of work for every working day, per employee, from which attestations can be produced on request. It is the most commonly missed cross-border obligation and the first document an authority asks for.

The second is the social security declaration once home working becomes habitual. Where telework from the country of residence reaches the lower threshold in the coordination rules, the employer files a declaration with the CCSS through SECUline under the framework agreement on cross-border telework, and an A1 certificate is issued for the declared period. If nobody files it, the default rule in Regulation (EC) No 883/2004 applies and the exposure sits in the residence country. Retroactive declarations have been capped at three months since 1 July 2024, so it is not a year-end job.

The third and fourth duties are documentary. The employer holds the A1 certificates evidencing Luxembourg affiliation, and keeps a file supporting the absence of a permanent establishment in the residence country, because a home office used regularly and structurally at the employer’s direction can raise that question. Where a French resident has gone past the tolerated days, the French registration and monthly declarations become a standing duty.

This is why a relaxed home-working policy behaves so differently for the two groups. Telling a Luxembourg resident to work from home whenever it suits them costs nothing, because home and office are in the same country. The same sentence said to a frontalier starts two counters, a day count under a treaty and a share of working time under an EU regulation, and neither is measured by the employee. Write the pattern into the telework agreement and agree who reports the days.

Public transport has been free across Luxembourg since 29 February 2020 and is still free in 2026, but the free journey stops at the border. A commuter from Belgium, France or Germany travels free from the border onward and pays the foreign operator, SNCB, SNCF or DB, for the leg on their own side, and first class rail is paid in Luxembourg too. The free network removes a cost for residents and leaves one in place for everyone commuting in.

Paying that foreign leg back is not the clean fix it looks like. Reimbursed home-to-work travel is taxable salary in Luxembourg, because the commute is already covered by a flat-rate deduction in the income tax law, so the money is taxed and contributed on like any other pay. An employer competing for staff across a border may still choose to do it, but it is budgeted gross rather than as an expense.

Company cars are the route many Luxembourg employers take instead, and they are standard in white-collar packages. The benefit in kind is a flat monthly percentage of the new-vehicle price including options and VAT: 2% for a combustion or hybrid car first registered from 1 January 2025, and 0.5% or 0.6% for an electric car registered between 1 January 2023 and 31 December 2026, doubling from 1 January 2027. Paying instead for the employee’s own private car is not a benefit in kind; those amounts are fully taxable salary.

The rest of the package looks the same for a commuter as for a resident. Meal vouchers, supplementary pension, profit sharing and the statutory leave entitlements apply without regard to where the employee lives. Our Luxembourg EOR services page sets out which parts an EOR administers and which stay with the client.

In most of the United States employment is at will: either side may end it at any time, for any reason that is not unlawful, without notice and without explanation. No statute obliges a US employer to justify an individual termination to the employee, and none sets a general minimum notice period. Montana is the standing exception, with a statute requiring good cause once a probationary period has passed.

At will has never meant that anything goes. Federal and state statutes prohibit dismissal on protected characteristics and dismissal in retaliation for protected activity such as raising a complaint or taking statutory leave. Most states recognise a public policy exception, for example dismissal after refusing to break the law. Handbooks and oral assurances can create an implied contract that displaces the default, a minority of states imply a covenant of good faith, and anyone covered by a bargaining agreement or by a contract with a cause definition sits outside it altogether.

The working reality in a US HR department is far more careful than the doctrine sounds. Employers document performance, issue written warnings, keep the stated reason consistent across the file, and often pay severance under a separation agreement in exchange for a release. That paper trail defends a discrimination or retaliation claim later; the law does not ask for a reason at the time.

So a US employer owes no reason to the employee and keeps one on file anyway. The habit transfers usefully to Luxembourg. The timing, the form the paperwork takes and the assumption that employment can be ended quickly do not.

Luxembourg has no at-will termination, and no contract, handbook or offer letter can create one. An open-ended contract, a contrat à durée indéterminée (CDI), may be ended by the employer only on real and serious grounds, motifs réels et sérieux. Those grounds fall into two families: reasons inherent in the person of the employee, covering aptitude, performance and conduct, and reasons based on the operating needs of the undertaking, meaning restructuring or economic difficulty.

The reason is owed to the employee. Where a US employer keeps its reason in a file for its own protection, a Luxembourg employer can be compelled to state it in writing inside a fixed window, and is then measured against what it wrote. A dismissal announced in a meeting and never confirmed in writing is abusive in itself.

For a US business the change is the order of work. In an at-will exit the decision comes first and the documentation catches up. In Luxembourg the grounds have to exist, in a form that can be stated with precision, before the letter is posted, because the letter fixes the dates and the written reasons fix the argument. A separation agreement with a general release is a commercial addition here, not a substitute for having grounds.

The Luxembourg mechanics in full, including the trial period, the severance table and the protected categories, are in our guide to terminating employment in Luxembourg.

An at-will termination in the US carries no statutory notice, while a Luxembourg dismissal carries two, four or six months of it. The two weeks a US employer usually offers is policy or courtesy, and where notice is genuinely owed it comes from an individual contract or a bargaining agreement rather than from statute.

Luxembourg sets the period by seniority at the date notice is given: two months under five years’ service, four months from five to under ten years, and six months at ten years or more. An employee who resigns gives half of each, so one, two or three months. These are floors in the Code du travail, and a contract may improve on them but not cut them.

Then comes the rule that catches US employers hardest, because the clock ignores the date typed on the page. Posted before the 15th of the month it begins on the 15th of that month, and posted on or after the 15th it begins on the 1st of the following month, with the postmark deciding. A letter posted on 9 February to an employee with six years’ service starts a four-month notice on 15 February and the contract ends on 14 June. Hold it until 16 February and notice starts on 1 March, ending 30 June.

Salary, employer contributions and holiday accrual run through the notice period, and Luxembourg provides paid job-search leave inside it. Releasing the employee from working the notice shortens nothing, because the period still counts for seniority and for severance. Budget on the longer figure: the last day is arithmetic from the postmark, not from the conversation.

A Luxembourg dismissal with notice goes by registered letter, or is handed over against the employee’s signature, in a language the employee genuinely understands. The letter itself need not state the reasons, which surprises US employers: less is required at notification than they expect, and much more a month later if the employee asks.

That request is the most expensive date in the calendar. The employee has one month from notification to demand the reasons by registered letter, and the employer has one month from receiving the demand to reply, again by registered letter, with precise and concrete reasons. Failure to reply in time makes the dismissal automatically abusive whatever the merits of the decision, and a reply offering a general formula such as loss of confidence is barely better than silence. Nothing in US practice works this way: there is no equivalent diary date whose miss loses the argument on its own.

Two further duties depend on headcount, and both attach to the employing undertaking rather than to the group. An employer with 150 or more employees must hold a preliminary meeting, the entretien préalable, before any dismissal outside the trial period. An employer with 15 or more must notify the Comité de conjoncture, on the official form, of every dismissal on grounds not inherent in the person of the employee. A US parent with three people in Luxembourg sits below both.

US severance is discretionary and bought, whereas Luxembourg severance is statutory and automatic above a service threshold. A US employer pays under a policy or a negotiated separation agreement, usually in exchange for a release. In Luxembourg the indemnité de départ is owed by law on a dismissal with notice, with nothing to sign in return.

It starts at five years of service and rises with seniority: one month’s salary from five to under ten years, two from ten to under fifteen, three from fifteen to under twenty, six from twenty to under twenty-five, nine from twenty-five to under thirty, and twelve months at thirty years or more. Seniority is assessed at the expiry of the notice period, not at the date of the letter, so an employee just short of five years when the envelope goes out can still cross the threshold.

The base is the average gross salary of the preceding twelve months, and nothing is payable on a resignation. The payment is treated favourably for Luxembourg income tax, but the exemption carries statutory limits, so confirm the position for a specific payment with the Administration des contributions directes (ACD) before promising anyone a net figure.

Summary dismissal differs too. Termination for cause in a US contract is whatever the contract defines it to be. Luxembourg’s faute grave is a legal standard: the fault must be grave enough to make it immediately and definitively impossible to maintain the working relationship. The employer has one month from learning of the facts to act, and the letter must state them precisely, because vague wording cannot be repaired afterwards. Where it holds, no notice and no severance are due.

Luxembourg protects certain employees by freezing the calendar, which is a different mechanism from the US one. US law prohibits dismissal because of a protected characteristic or a protected activity, so the question is always why the employer acted. Luxembourg adds periods during which the employer may not act at all, whatever the reason.

Certified sick leave is the one that catches US employers out. An employee off sick is protected for up to 26 weeks from the onset of the incapacity: no notice may be served, no dismissal for serious misconduct may be notified, and the employee may not even be convened to a preliminary meeting, provided they have notified the absence and supplied the certificate. Pregnancy, maternity and parental leave carry protections of their own, and a dismissal in breach of those is null rather than merely abusive. Staff delegates are protected throughout their mandate and for six months after it.

A reduction in force therefore looks nothing like its US equivalent. US planning turns on a single announcement date, with advance-notice duties arising only for large-scale closures and layoffs under federal and state law. Luxembourg has no announcement date. Each dismissal rests on the operating needs of the undertaking, goes by registered letter, and runs its own notice period from the 15th or the 1st, with severance where seniority reaches five years. Above seven dismissals in 30 days or fifteen in 90, Luxembourg treats the exercise as a collective redundancy, which brings written notification of employee representatives and ADEM, a negotiation window and a plan social before anyone is notified individually.

Cost the whole run-off before the decision: salary and employer contributions to the last day, untaken leave, and severance where it is due. Our comparison of US and Luxembourg employer costs covers the monthly side of the same arithmetic.

An employee who considers a Luxembourg dismissal abusive has three months to bring a claim before the Tribunal du travail. Four events can start that clock, and the earliest of them governs: notification of an immediate dismissal, notification where the employee asked for no reasons, receipt of the written reasons, or the day the reply was due. A written claim addressed to the employer interrupts it and opens a fresh period of one year.

Where a dismissal is held abusive the tribunal awards damages: material loss, being earnings lost over a reference period the tribunal fixes, reduced by unemployment benefit and conditional on the employee showing genuine efforts to find work, together with damages for the distress of losing the job.

The exposure a US employer is used to comes from the reason for the dismissal. In Luxembourg a perfectly good business reason still produces a loss if the letter went out on the wrong day, if the reply was late, or if the employee was inside a protected period. That is an administrative risk rather than a litigation risk, and it is manageable because the dates are fixed and knowable in advance.

Employer of Record Luxembourg is registered to employ in Luxembourg and is the legal employer of the people our clients hire there, so the employer-side mechanics of an exit sit with us while the client makes the commercial decision: the letter posted by registered mail against the rule of the 15th, the reply window diarised, and final pay run to the last day. Our note on US companies hiring in Luxembourg sets out the wider picture, and you can send us the seniority and the salary for a costed timetable.

Automatic wage indexation is a legal mechanism that raises pay across Luxembourg by a fixed 2.5% whenever inflation passes a set threshold. Its French name is the indexation automatique des salaires, and the scale it runs on is the échelle mobile des salaires, the sliding wage scale. It is not a policy an employer adopts, a clause a union wins or a gesture made in a good year. It sits in law, it reaches every employer in the country on the same date, and no employer has a say in when it happens or how large it is.

The purpose is to keep pay in step with prices without an annual round of bargaining over inflation. Luxembourg has operated a sliding wage scale for decades, so the cost of living feeds through to wages by way of a published statistic rather than by negotiation. Pensions and a range of social benefits move on the same trigger, which is why official releases describe the uplift as applying to salaries, wages and pensions together.

For a business employing from outside the country, this is the part of Luxembourg payroll that most often catches a finance team out. In the US or the UK, pay rises when a manager decides it rises and the increase is owned by the employer. In Luxembourg one category of increase is settled by arithmetic, arrives at short notice and applies to everyone at once. Employing through Employer of Record Luxembourg does not change that: the uplift reaches the employee because it reaches every employee in Luxembourg, and the cost sits with whoever funds the salary.

A tranche triggers when the six-month moving average of the national consumer price index rises 2.5% above the threshold set at the previous tranche. The index is the indice des prix à la consommation national (IPCN), which Luxembourg still expresses against a base of 1 January 1948. Once the moving average crosses the threshold, salaries, wages and pensions rise by 2.5% from the first day of the month that follows.

STATEC, the national statistics institute, publishes the index every month together with its effect on the sliding wage scale, and the Consumer Price Commission meets monthly to confirm the definitive result. That is the whole administrative process. There is no ministerial decision to wait for, no decree to be argued over and no consultation with employers before pay moves.

The most recent tranche shows the timetable in practice. The six-month average passed the threshold of 1,038.79 points in May 2026, when annual inflation stood at 2.3%. The cote d’application, the figure Luxembourg salaries are expressed against, moved from 968.04 to 992.24, an uplift of 2.5% taking effect on 1 June 2026. The definitive figures were published on 3 June 2026, after that month’s meeting of the Commission, by which point the higher salaries were already due.

That sequence is the timing problem in miniature. An employer usually learns that a tranche has triggered a few weeks before the payroll it applies to, or in the same month as it. There is no annual date to plan around, because the trigger is a price movement rather than a diary entry.

The uplift reaches salaries, wages, pensions and social benefits, including the salaire social minimum (SSM) and the social parameters linked to it. That breadth is what employers outside Luxembourg tend to miss. Indexation is not only a salary event: it moves a set of thresholds that payroll calculations depend on, and it moves them on the same date as pay.

The social minimum wage is the clearest case. It stands at €2,771.33 a month for an unskilled worker aged 18 or over and €3,325.59 for a skilled one, hourly €16.0192 and €19.2231, all in force since 1 June 2026 as a direct result of the tranche of that date. Several other figures are defined as multiples or fractions of the SSM and therefore move with it. The plafond cotisable, the ceiling at which most social security contributions stop, is five times the monthly SSM and stands at €13,856.63 a month and €166,279.56 a year. The allowance deducted before the contribution dépendance is charged is a quarter of the monthly SSM, €692.83. Both changed on 1 June 2026 on the same trigger as salaries, which is why the 2026 minimum wage rates carry that date.

Contribution rates are percentages and do not move with the index. A standard commercial employer pays around 13.29% of gross and the employee 12.95%, before and after a tranche alike. What changes is the gross those percentages apply to, and the ceilings at which the capped branches stop.

Income tax behaves differently again, and the difference costs the employee money. The withholding scale is not automatically indexed to wages, and the scale in force for 2026 was not adjusted for indexation. A 2.5% rise in gross therefore meets unchanged tax bands, so net pay rises by less than 2.5% while employer cost rises by the full 2.5% plus contributions on it. Our guide to how Luxembourg payroll works takes the deductions in order.

Seven tranches triggered between October 2021 and June 2026, each one a flat 2.5%. In order, with the cote d’application each produced:

• 1 October 2021, to 855.62 from 834.76
• 1 April 2022, to 877.01
• February 2023, to 898.93
• April 2023, to 921.40
• 1 September 2023, to 944.43
• 1 May 2025, to 968.04
• 1 June 2026, to 992.24

The two 2023 tranches are given by month rather than by day because the STATEC releases for that pair are harder to retrieve than the others, although the cote figures are consistent with the chain either side of them. Where an exact historical date matters, for a back-pay calculation or a dispute over arrears, take it from STATEC rather than from a summary table.

The run as a whole is what makes the point. The cote went from 834.76 to 992.24, a cumulative automatic increase of about 18.9% in under five years, before a single merit rise, promotion or bonus. A salary set at €75,000 in the autumn of 2021 and never once reviewed stands at just over €89,000 today, and employer contributions on it grew in the same proportion.

The rhythm is irregular, which is the awkward part for a planner. Two tranches landed within roughly two months of each other in early 2023, and then twenty months passed between September 2023 and May 2025 with none at all. Any assumption about spacing drawn from those five years is an assumption about inflation, not a feature of the mechanism.

One tranche adds about €2,549 a year to the employer cost of a €90,000 hire, and nobody signed anything to agree it. Start from the worked example used across this site: gross salary €90,000, employer social security at 13.29%, employer contributions of €11,961 and a total employer cost of €101,961 a year.

Apply a single 2.5% tranche. Gross becomes €92,250, monthly gross moves from €7,500 to €7,687.50, contributions rise to €12,260 and total employer cost reaches €104,510, an increase of €2,549 a year for one person from the first day of a month the employer did not choose. A second tranche, whenever it arrives, takes the same hire to €94,556 gross and €107,123 of employer cost, €5,162 above the number the budget started with.

The figures assume a single employee in tax class 1, resident in Luxembourg, with no dependants, on the parameters in force from 1 June 2026, accident insurance at the neutral bonus-malus factor, the Mutualité des employeurs class every new employer starts in, and no bonus, benefit in kind or supplementary pension. Employer contributions for a standard commercial employer run between roughly 12.5% and 15.3% depending on accident and Mutualité class, so 13.29% is a typical figure rather than a universal one.

Scale it and the number stops looking small. Ten people on a combined €900,000 of salary cost an employer about €1,019,610 before benefits, and one tranche adds roughly €25,490 a year to that, repeated at every tranche that follows. The full build-up of what a hire costs is in our guide to the cost of hiring in Luxembourg.

Budget a contingency for indexation rather than a date, and keep it separate from the merit budget. A multi-year cost model built on a flat salary is wrong by construction in Luxembourg, because the salary in it cannot stay flat; the open questions are when it moves and how often. Carry the current salary plus a stated indexation allowance in each future year, then re-run the model the month a tranche lands.

Forecasts exist and deserve to be read as forecasts. STATEC publishes inflation projections that indicate when the next tranche might fall, alongside alternative scenarios pointing at a different answer. Nobody knows the date in advance. The assumption that holds up is that a tranche can land at any time, and that the only certainty is its size, 2.5%.

Offer letters and contracts should put this in writing. Article L.121-4 of the Code du travail requires the contract to state the basic salary together with the index cote in force, with supplements, premiums and bonuses shown separately, so a Luxembourg offer reads as a salary expressed at an index, currently 992.24. Say what that means for the candidate: the figure rises automatically when the index moves, and a performance review is a separate decision on top of it. An employee who treats a tranche as their annual rise, or an employer who tries to, has a difficult conversation coming.

The provider fee is the one part of the cost that need not move. Our fee starts at €499 per employee per month, €5,988 a year, charged flat per employee rather than as a percentage of pay, so a tranche lifts the salary and the contributions on it and leaves the fee alone. A percentage-of-payroll fee rises at every tranche instead, adding to an increase the employer never chose. Our own rates are set out on the pricing page.

For posted workers, travailleurs détachés, indexation applies only to the minimum wage and not to pay above it. A posted worker is someone employed by an employer established outside Luxembourg and sent there temporarily to work while remaining employed abroad, an arrangement with its own registration duties, overseen by the Inspection du travail et des mines (ITM). For that population the index protects the wage floor and goes no further.

The carve-out is narrower than it first looks and easy to claim by mistake. Posting is a defined legal status with conditions attached, not a description of anyone whose employer happens to be foreign. A person recruited to work in Luxembourg on a Luxembourg employment contract is not a posted worker, whoever the end client is, so the full uplift applies to the whole of their salary.

An employee hired through an EOR falls on that side of the line. The contract is a Luxembourg employment contract with a Luxembourg employer, the person is declared to the Centre commun de la sécurité sociale (CCSS) and paid through Luxembourg payroll, and every index tranche applies to their salary in full. Anyone thinking of relying on the posting rules to limit indexation should take advice on whether those rules actually cover the arrangement before a cost model is built on the answer.

The two headline percentages are not measuring the same thing, which is why a straight comparison of 7.65% against 13.29% misleads. The US federal payroll tax funds Social Security retirement, survivor and disability benefits, and Medicare hospital insurance. The Luxembourg contribution funds a pension, healthcare for the employee and their family from the first day of cover, cash sickness benefit, accident insurance and occupational health. Two systems that buy different baskets cannot be compared by their price tags alone.

The useful comparison is total cost of employment: everything a company spends to put one person in one seat for one year, including salary, statutory contributions, insurance premiums, paid time off and whatever the exit eventually costs. Run that calculation and the ranking changes with the salary, the employee’s family situation and the state the US role would sit in.

Three things drive the outcome: employer-sponsored health insurance, which is a US employer cost and a Luxembourg state one; the Luxembourg contribution ceiling, which has no equivalent in Medicare; and the guaranteed cost of leave, sick pay and notice, which runs the other way. The sections below take each in turn, and Employer of Record Luxembourg handles the Luxembourg side for companies with no entity there.

A US employer pays federal FICA, federal unemployment tax, state unemployment insurance and, in nearly every state, workers’ compensation insurance, before any benefit spending at all. FICA is the largest statutory line at about 7.65% of wages: 6.2% for Social Security, matched with the employee, up to an annual wage base that is indexed each year, and 1.45% for Medicare, also matched, with no ceiling. Employees pay an additional Medicare levy on earnings above a statutory threshold, which the employer withholds but does not match.

Federal unemployment tax (FUTA) applies at 6.0% on the first $7,000 of each employee’s wages in the year, reduced to 0.6% in most states by the credit for state unemployment tax paid. The effect is that FUTA is a small fixed amount per head rather than a percentage of the whole salary, so it fades to almost nothing on a senior package.

State unemployment insurance is where the variation sits. Each state sets its own taxable wage base and its own rate band, and an employer’s position inside that band is experience-rated, so a company with a history of claims pays more than one without, and a new employer is usually given a default rate until it has a record. Workers’ compensation is priced separately again, by state and by job classification code, and bought from an insurer rather than paid to a tax authority.

None of that includes health cover, retirement plan matching or paid leave, all of which are set by the employer rather than by statute. That is the shape of the US number: a modest legislated floor, then a large layer the market decides.

A Luxembourg employer pays a single social security contribution of about 13.29% of gross for a standard commercial employer, and that is the whole statutory cost above salary. That total sits between roughly 12.5% and 15.3% depending on the accident bonus-malus factor and the Mutualité class. It is collected in one monthly payment by the Centre commun de la sécurité sociale (CCSS) and it covers pension, healthcare in kind, cash sickness benefit, accident insurance, occupational health and the Mutualité des employeurs. There is no separate employer unemployment contribution in Luxembourg; unemployment is financed by other means.

All of it stops at the plafond cotisable, the contribution ceiling, set since 1 June 2026 at €13,856.63 a month, or €166,279.56 across a year. Above that salary the employer side of the bill flattens out at a little over €22,000 a year and goes no higher, however large the package. The one uncapped contribution, the contribution dépendance for long-term care, is paid by the employee alone and costs the employer nothing.

In money, on a gross salary of €90,000 a year, employer contributions come to €11,961 and total employer cost is €101,961. At €60,000 gross the same rate produces €67,974. Both assume the social parameters applying since 1 June 2026, a neutral accident bonus-malus factor, the Mutualité risk class a new employer is placed in at the start, and no bonus, benefit in kind or supplementary pension. The full arithmetic is in our note on what it costs to hire in Luxembourg.

Benefits sit on top and are market practice rather than law. Meal vouchers at a face value of up to €15 are close to universal and company cars are normal in a white-collar package, but none of them are required and none of them are health cover.

Health insurance is the single largest difference between the two employer bills, and it points the opposite way to the payroll tax rates. In Luxembourg, medical cover comes from the Caisse nationale de santé (CNS) and is funded by the healthcare branch of the contribution already counted in the 13.29%. A Luxembourg employer does not buy a health plan, does not run a renewal, and pays nothing extra when an employee has a spouse and three children rather than none.

In the US, employer-sponsored health insurance is a separate annual premium negotiated plan by plan, and for most companies it is the largest benefit line in the budget. It is priced by carrier, plan design, state, age and family composition, and family cover costs a multiple of single cover. We deliberately do not quote a national average, because the only number that matters for your comparison is the one on your own renewal quote. Put that figure alongside the Luxembourg contribution and the two sides usually swap places.

Workers’ compensation works the same way. A US employer buys a policy; a Luxembourg employer’s accident cover sits inside the 13.29%. Some Luxembourg employers do add complementary medical cover through CMCM or a commercial insurer, but it is an optional top-up on an already comprehensive public scheme rather than the cover itself. Check the tax treatment of any such policy with your payroll provider before offering it, because it has no dedicated exemption in the income tax law.

Luxembourg costs more than the US on guaranteed paid time off, on employer-funded sick pay and on ending employment, and those three are the honest counterweight to the health insurance point. Annual leave has a statutory floor of 26 working days on top of 11 public holidays, so a Luxembourg employee is paid for around 37 days a year that they do not work. The US has no federal statutory minimum paid vacation, and paid holidays are company policy, so a US employer chooses that cost while a Luxembourg employer inherits it.

Sick pay is the line US employers underestimate most. A Luxembourg employer keeps paying full salary to the end of the calendar month containing the 77th day of incapacity, counted across a rolling 18 months, which works out at 11 to 15 weeks of paid absence. The Caisse nationale de santé takes over from the following month. The sting is drawn by the Mutualité des employeurs, which refunds the employer 80% of the gross pay plus the employer contributions on it, rising to a full refund for incapacity during the trial period. Our guide to Luxembourg sick leave rules works through how that lands on an invoice.

Ending employment is the biggest structural gap, because there is no at-will dismissal in Luxembourg. Employer notice runs 2 months under five years of service, 4 months from five to ten and 6 months at ten years and over, starting on the 15th or the 1st depending on when the letter is posted. An indemnité de départ becomes payable from five years’ service, at 1 month’s pay at five to ten years and rising with seniority to 12 months at thirty years and over. A US employer provisions for severance by policy; a Luxembourg employer provisions for it by law, as we set out in US and Luxembourg termination rules.

Luxembourg raises every salary in the country by 2.5% whenever the index triggers, with no negotiation and no employer discretion, and nothing in the US works this way. The mechanism is the indexation automatique des salaires. Once the six-month moving average of the national consumer price index stands 2.5% above the previous trigger point, pay, pensions and index-linked social parameters all go up by 2.5%, from the first day of the month after that. STATEC publishes the index every month, and the applicable figure has stood at 992.24 since 1 June 2026.

For a budget holder the effect is straightforward. Take the €90,000 hire above, at a total employer cost of €101,961. A single tranche adds roughly €2,549 to that cost, because the contributions rise with the salary, and it applies to the whole payroll on the same day. The contribution ceiling and the salaire social minimum move with it too. Timing is not predictable, which is why an offer letter written for Luxembourg should say the salary is index-linked rather than fixed.

There is no US equivalent at the level of individual pay. A handful of states index their own minimum wage to inflation, but that moves a floor rather than every salary, and above the floor US pay rises are discretionary and timed by the employer. This is the Luxembourg feature foreign employers are most likely to leave out of a model, and the one that quietly makes a three-year cost projection wrong. Our explainer on how wage indexation works sets out the mechanics in full.

Neither system is universally cheaper, and which one wins depends on the salary, the employee’s family and how long the job lasts. Luxembourg tends to win on total cost where the comparable US role would carry family health cover, because that premium is absent and the contribution is capped. Luxembourg wins more clearly at senior salaries, since employer contributions stop at €166,279.56 a year while Medicare keeps running at 1.45% on every dollar with no ceiling.

The US tends to win on a junior or short-term role with a lean benefits package, where the health premium is modest or the employee is covered elsewhere, and where the employer expects to end the job quickly. At-will dismissal with no statutory notice and no statutory severance is a real cost advantage.

The more useful difference is predictability rather than price. A Luxembourg employer cost can be written down for the year from published parameters, with indexation the only moving part and the ceiling capping the contribution. A US employer cost depends on a renewal quote, a state unemployment rating and a benefits market that reprices annually. Model one salary both ways, using your own health plan cost rather than an average.

Yes. A UK company can employ someone in Luxembourg, and Brexit did not remove that ability. The limit is on how, rather than on whether. Work performed in Luxembourg falls under the Code du travail, the employee has to be declared to the Centre commun de la sécurité sociale (CCSS) within eight days of the start date, and income tax is withheld under the retenue d’impôt sur les traitements et salaires. A UK payroll cannot perform any of that.

Two structures answer it. The UK business can form a Luxembourg company of its own and employ directly, or it can use an Employer of Record, which becomes the legal employer of the person while the UK business keeps the role, the salary and the daily direction. Employer of Record Luxembourg is registered to employ there, and that registration is what lets a Luxembourg contract be signed and payroll start in days instead of after a company formation.

One question usually comes first from UK HR teams, and the answer is short. No UK sponsor licence is involved. Sponsorship exists to bring a worker into the UK labour market; here the employment is in Luxembourg, so the UK immigration system is not engaged. Any permission needed is a Luxembourg one, and it attaches to the individual.

The employer side of the question is largely untouched. A UK company could put someone on a Luxembourg payroll before 2021 by forming a Luxembourg company or by using an Employer of Record, and those are still the two practical answers.

Luxembourg employment law applies by reference to where the work is done, not to where the employer is incorporated, so a company in Manchester faces the same Code du travail as a company in Munich once the employee works in Luxembourg. That means the same written contract requirements, the same minimum of 26 working days of paid annual leave on top of 11 public holidays, the same notice periods measured in months, the same sick pay obligation and the same CCSS declaration.

Company ownership is unchanged too. A UK parent can own a Luxembourg société à responsabilité limitée (SARL) exactly as it could before. The one structure closed to it is the simplified SARL-S, which may only be held by individuals, so any corporate parent uses the ordinary SARL instead.

The commercial reasons UK businesses hire in Luxembourg are the same as they were. A candidate worth having already lives there or commutes in from Belgium, France or Germany. A client contract requires a named person employed under Luxembourg law. A fund, treasury or regulatory function has to sit in the Grand Duchy.

Two things changed, and both concern the person hired rather than the hiring company. The first is immigration status. A UK national is now a third-country national for Luxembourg purposes: an EU, EEA or Swiss citizen needs no work permit and no residence permit and only registers at the commune, while a UK national who is not already resident needs an authorisation obtained before arriving.

Two routes matter to an employer. The salaried worker route begins with a vacancy declaration to ADEM, the public employment service, filed before the job is advertised anywhere, then a labour market test and a certificate valid for three months. The employee applies for an autorisation de séjour temporaire before entering the country, and the ministry’s stated response time is in principle four months at most. The EU Blue Card, the carte bleue européenne, skips the labour market test for higher-paid roles: the 2026 gross annual salary threshold is €65,652 and the contract has to run at least six months. Our guide to hiring non-EU workers in Luxembourg sets out every step.

Plan that timetable in months rather than weeks. No authority publishes an end-to-end average, but the published component maxima put the salaried worker route at roughly four to seven months, and less where the occupation sits on ADEM’s shortage list. A UK national already lawfully resident in Luxembourg before the end of the transition period holds protected rights under the Withdrawal Agreement, so check the person’s residence document before assuming any of this applies.

The second change is the basis of social security coordination. The EU regulations that coordinate social security between member states no longer govern the UK relationship, which now rests on the UK–EU Trade and Cooperation Agreement. For the ordinary hire this is quiet: a person who lives in Luxembourg and works for an employer registered there is declared to the CCSS and insured in Luxembourg like anyone else. The cases needing care are the ones straddling both systems, such as an existing UK employee moving across, a short posting, or someone who keeps working part of the week in the UK. Confirm that position in writing with the CCSS or a specialist adviser before the start date.

Three routes exist, and the choice turns on speed, headcount and how long the Luxembourg presence will last. Two are sound; the third is the one UK companies reach for first.

The first route is a company of your own. A SARL takes €12,000 of share capital, which can now be deferred for up to twelve months under the law of 18 May 2026, plus an autorisation d’établissement (business permit) at €50 with a three-month statutory target from a complete file. Expect eight to fourteen weeks before a first legal payroll, and year-one running costs outside the capital of roughly €3,300 to €17,000.

The second route is an Employer of Record. The EOR is the legal employer: it issues the Luxembourg contract, files the déclaration d’entrée with the CCSS, obtains the fiche de retenue d’impôt (tax card) from the Administration des contributions directes (ACD), calculates the monthly withholding, pays both sides’ contributions and keeps the leave, sickness and termination records. The fee starts at €499 per employee per month, charged flat rather than as a percentage of salary, and a contract is usually ready within hours of the salary and start date being agreed.

The third route is to engage the person as a contractor and take invoices. It looks cheap and carries the most exposure. Luxembourg decides employment status on how the relationship actually runs rather than on the wording of an invoice, so someone who works to your instructions, inside your hours and your structures, can be treated as an employee whatever the paperwork says. We set that out in full in our note on misclassification risk in Luxembourg.

Employer social security runs at about 13.29% of gross for a standard commercial employer, within a full range of roughly 12.5% to 15.3% once the accident bonus-malus factor and the Mutualité class are taken into account. The employee pays 12.95%. Most branches stop at the plafond cotisable, the contribution ceiling, which is €13,856.63 a month and €166,279.56 a year from 1 June 2026, while the contribution dépendance is uncapped and paid by the employee alone.

A worked example makes it concrete. On a gross salary of €90,000 a year, employer contributions at 13.29% come to €11,961, for a total employer cost of €101,961. The employee here is a single person in tax class 1, resident in Luxembourg, with no dependants: they pay €11,538.60 in social security and €19,701.54 in income tax including the 7% solidarity surcharge, and take home €58,759.86 a year, or €4,896.65 a month. The figures use the parameters in force from 1 June 2026, the neutral accident bonus-malus factor, the Mutualité class a new employer starts in and standard deductions only. At €60,000 gross the same rate gives a total employer cost of €67,974.

Pay is calculated over twelve monthly salaries. A thirteenth month is not statutory in Luxembourg; it becomes an enforceable right only through the contract, a collective agreement or a settled practice known as usage constant, so the contract should say plainly which of those, if any, applies. Market benefits sit on top, chiefly chèques-repas (meal vouchers) at a face value of up to €15, of which the exempt employer share is €12.20, and company cars, taxed as a benefit in kind.

Every one of those is a euro figure, so the sterling cost of a Luxembourg employee moves with the exchange rate on top of any Luxembourg increase.

Notice comes first, because it is measured in months rather than weeks. An employer dismissing gives two months under five years of service, four months from five to ten and six months at ten or more, and an employee resigning gives half of that, where UK statutory notice is set in weeks and builds up week by week. The post fixes the start date: notice runs from the 15th where the letter is posted before the 15th, and from the 1st of the following month where it is posted on or after it. A separation payment, the indemnité de départ, becomes due from five years of service. We cover the procedure in terminating employment in Luxembourg.

Paid leave and sick pay come next. The Luxembourg minimum is 26 working days a year and the 11 public holidays sit on top of it, where the UK minimum is a single combined figure a UK employer is used to counting public holidays inside. Sick pay is the larger surprise: the employer pays full salary until the end of the calendar month in which the 77th day of incapacity falls, counted in calendar days over a rolling 18 months, which works out at roughly 11 to 15 weeks. From the month after that, the Caisse nationale de santé (CNS) takes over and pays the employee directly. The relief is that the Mutualité des employeurs reimburses the employer 80% of the gross pay and the employer contributions on it, rising to 100% during the période d’essai (the probation period).

The contract is more formal than a UK written statement. Luxembourg requires it in writing, in two signed originals with one held by each side, by the first day of work at the latest, carrying the particulars set out at Article L.121-4 of the Code du travail and drawn up in a language the employee genuinely understands. English is accepted where both sides read English, and there is no grace period to send it on afterwards.

The last difference has no UK equivalent. Luxembourg salaries are index-linked: when the six-month moving average of the national consumer price index rises 2.5% above the previous threshold, pay across the country rises by 2.5% from the first of the following month. The index is published monthly by STATEC, and when it triggers, the rise is applied by law rather than agreed. The applicable index has stood at 992.24 since 1 June 2026. The note on Luxembourg wage indexation explains the mechanism in full.

US companies hire in Luxembourg because it puts a person inside the EU single market without the scale a larger European market asks for. The trigger is usually concrete. A candidate worth hiring already lives in or near the Grand Duchy, a European customer wants a named employee working under EU law, or a fund administrator or software business needs one or two people covering European hours with no appetite for a subsidiary behind them.

Luxembourg had around 494,000 salaried workers at the end of 2025, and Luxembourgish nationals make up about a quarter of them. Recruiting an English-speaking professional is ordinary here rather than exceptional.

Most US businesses arrive with one hire and the same three questions: what does this person cost, what am I committing to, and how quickly can they start. Those are the questions that reach Employer of Record Luxembourg most weeks. The case for the country comes first below, then the adjustments, none of which is exotic and none of which can be contracted away.

Hiring in Luxembourg means recruiting from a labour market that spans four countries. Employers draw on residents of Luxembourg and on a large share of workers who live in Belgium, France or Germany and commute in, so a vacancy in Luxembourg City reaches candidates across a region measured in tens of kilometres. Specialist roles fill faster than the resident population suggests.

Languages come with that workforce. The administrative languages are French, German and Luxembourgish, fixed by the Law of 24 February 1984, and English is the everyday working language of much of the finance, fund services and technology sectors. No language is prescribed for the employment contract: the Inspection du travail et des mines (ITM, the labour inspectorate) accepts one drawn up in any language both parties genuinely understand. The Centre commun de la sécurité sociale (CCSS) is the exception, publishing its declarations only in French and German. Whatever language is chosen, the contract is written, signed in two originals and handed over by the first day of work, with the particulars at Article L.121-4 of the Code du travail.

Paperwork stays light for European candidates. Citizens of the EU, the EEA and Switzerland need no work permit and no residence permit; they register with their commune, filing a déclaration d’arrivée (arrival declaration) within eight days and a registration declaration within three months. A third-country national needs an authorisation before the start date.

Employing someone who commutes in from Belgium, France or Germany brings its own rules on where tax is withheld and where social security is paid, and they turn on days worked from home. Our guide to cross-border workers has the thresholds.

An employee in Luxembourg is an employee inside the EU, which is the commercial point for most US businesses that hire there. An EU passport holder meets customers in any member state without an immigration question, sells into the single market on the same regulatory terms as a domestic competitor, and gives the business a European contracting presence procurement teams recognise. Luxembourg borders Belgium, France and Germany, so much of western Europe is within a morning’s reach.

The time difference works in the employer’s favour. Luxembourg keeps Central European Time, six hours ahead of New York, so a nine o’clock start on the east coast lands mid-afternoon in Luxembourg and the two working days share a real overlap without anyone taking calls at night.

The regulatory side is predictable once a US employer sees its shape. The rules are national, with no state-by-state variation: one contribution collector in the CCSS, one income tax scale withheld at source, eleven public holidays that apply countrywide, and payroll parameters that change on stated dates. Predictable is not static, though, because Luxembourg pay moves by law through wage indexation.

The largest adjustment for a US employer is that Luxembourg has no at-will employment. A dismissal needs a real reason, connected either to the employee’s conduct or capability or to the operating needs of the business, and it is given in writing by registered letter. No contract or handbook converts the relationship into an at-will one.

Notice runs in months, set by length of service: two months under five years, four months from five to ten, and six months beyond ten. An employee who resigns gives half of that. Notice also does not begin when the letter arrives. Under the rule of the 15th it starts on the 15th where the letter is posted before the 15th, and on the first of the following month where it is posted on or after it, with the postmark deciding. A letter sent on the 14th and the same letter sent on the 16th are two weeks apart in effect.

Severance, the indemnité de départ, sits on top of notice and does not arise below five years of service, starting at one month’s pay at five to ten years and rising with seniority. Two duties depend on headcount: 15 or more employees means notifying the Comité de conjoncture of every dismissal on grounds not inherent in the person, and 150 or more means an entretien préalable (a preliminary meeting) first. A dismissed employee may request written reasons within one month, and an employer that fails to answer within one month by registered letter makes the dismissal automatically abusive.

We set the two systems against each other in US and Luxembourg termination rules compared.

Paid leave in Luxembourg begins at 26 working days a year, on top of 11 public holidays, and both are legal minimums rather than market practice, so a US employer setting its own time-off policy is working above a statutory floor. Pay runs over twelve monthly salaries, and there is no statutory thirteenth month; a thirteenth payment becomes an entitlement only through the contract, a collective agreement or a settled practice known as usage constant.

Employer-paid sick leave catches US employers hardest, because the US has no equivalent duty. The employer keeps paying full salary to the end of the month in which the 77th day of incapacity falls, counted over a rolling 18 months, which in practice runs to between 11 and 15 weeks. The Caisse nationale de santé (CNS) pays the employee from the following month.

The Mutualité des employeurs takes most of that weight off the employer, reimbursing 80% of the gross salary paid during the employer period plus the employer contributions on it, and 100% where the absence falls in the période d’essai (the probation period). The employer pays first and claims back afterwards, so a long absence is a cash flow event even when the final cost is modest. An employee may also not be dismissed while an incapacity is properly notified.

Family leave is statutory too and needs cover planned in advance: 20 weeks of maternity leave, 10 days of paternity or second-parent leave, and parental leave of four or six months per parent.

Wage indexation is the Luxembourg mechanism a US employer has nothing to compare with, and it is the one that breaks a budget built on US assumptions. When the six-month moving average of the national consumer price index rises 2.5% above the threshold set at the previous tranche, every salary in the country rises by 2.5% from the first of the following month. STATEC publishes the index monthly, and there is no negotiation, no board approval and no employer discretion.

The uplift reaches salaries, wages, pensions, social benefits, the salaire social minimum (the statutory minimum wage) and the index-linked parameters around payroll. It applies across the board, so a tranche lifts the whole payroll line rather than the people whose reviews are due. Posted workers are the narrow exception, since indexation reaches only the minimum wage.

The recent record shows what that means over a planning horizon. Seven tranches took effect between October 2021 and June 2026, moving the cote d’application from 834.76 to 992.24, a cumulative automatic uplift of about 18.9% before anybody discussed performance. That figure has been in force since 1 June 2026, and nobody can say when the next tranche lands.

Two things follow for a US employer. Carry a provision for indexation in the payroll budget, and write offer letters so a merit increase sits on top of the index rather than in place of it. The mechanism is set out in our guide to Luxembourg wage indexation.

Employer social security in Luxembourg is 13.29% of gross for a standard commercial employer, lower than most US employers expect from a western European country, with a range of about 12.5% to 15.3% by accident and Mutualité class. On a gross salary of €90,000, employer contributions come to €11,961 and the total employer cost is €101,961. That employee, a single person in tax class 1 resident in Luxembourg with no dependants, takes home €58,759.86 a year, or €4,896.65 a month. The figures assume the parameters in force from 1 June 2026, accident insurance at the neutral bonus-malus factor, the Mutualité class every new employer starts in, and standard deductions with no bonus. At €60,000 gross the employer cost is €67,974.

That loading looks light because of what the 13.29% contains: one monthly payment to the CCSS covering pension, healthcare in kind, cash sickness benefit, accident insurance, occupational health and the Mutualité des employeurs, with no medical plan priced per head on top. The US structure differs in shape as well as level: Social Security and Medicare under FICA, split between employer and employee, unemployment tax federally and by state, and health cover bought in the market. Most Luxembourg branches stop at the plafond cotisable (the contribution ceiling) of €13,856.63 a month. The two are set side by side in US and Luxembourg employer costs.

That leaves the question of who employs the person. A company of your own means a société à responsabilité limitée (SARL) with €12,000 of share capital, now deferrable for up to twelve months under the law of 18 May 2026, an autorisation d’établissement (business permit) at €50 with a three-month statutory target, and typically eight to fourteen weeks to a first legal payroll on year-one costs outside the capital of roughly €3,300 to €17,000. An Employer of Record is the other route: the employee signs a Luxembourg contract with the EOR, is declared to the CCSS within eight days and is paid through Luxembourg payroll, while your business keeps the role, the salary and the direction of the work, on a flat fee from €499 per employee per month.

The choice turns on headcount and horizon rather than price alone. One or two people for an uncertain period point to an EOR, since nothing is tied up and the engagement ends with the employment. A team the business expects to grow points towards a company of your own, which at fifteen employees must also elect a staff delegation.

Less than a foreign employer expects, and different amounts for different kinds of work. Three regimes apply to the output of a single Luxembourg hire. Computer programs written by an employee in the exercise of their duties, or on the employer’s instructions, carry their economic rights to the employer automatically under the amended law of 18 April 2001 on copyright. Patentable inventions follow a test under the law of 20 July 1992 that turns on what the person was employed to do. Everything else copyright protects, from reports and drawings to design work, documentation and databases, stays with whoever made it until a written assignment moves it.

That last default surprises people. Luxembourg follows the civil-law principle that the creator is the first owner of a work, and an employment contract does not of itself transfer economic rights. An employer used to work made for hire starts from the opposite assumption, and where the Luxembourg contract is silent the company has an argument about an implied licence rather than a title it can license out or put in a data room.

The instruction is short: settle ownership in the contract rather than rely on the defaults, which divide the work in a way no commercial arrangement would choose.

An invention belongs to the employer when the employee makes it carrying out an employment contract that includes an inventive mission matching their actual duties, or carrying out studies or research expressly entrusted to them. That is the rule at Article 13 of the law of 20 July 1992 on patents. Inventions outside those two limbs belong to the employee. In between sits a category the employer may claim: inventions made in the course of the work, in the company’s field, or using its specific techniques or data.

The employee has to inform the employer of the invention, and both sides are then bound to keep it confidential. The inventor keeps the right to be named, which no clause buys out.

The obligation foreign employers tend to miss is financial. Where the employer draws a notable profit from the patent, it owes the inventor an equitable share of it, and a court can fix a special remuneration if the parties do not. That is statutory, so a contract cannot write it away.

What helps in practice is to describe the inventive mission in the job description where the role warrants it, so that what the person creates falls inside the first limb rather than the arguable middle category. That is a drafting choice to settle with Luxembourg counsel, not a rule of law.

Software is the one automatic transfer in Luxembourg copyright law. Where a computer program is created by an employee in the exercise of their duties or on the employer’s instructions, the employer alone is entitled to exercise all the economic rights in it. Published citations of the article number within the 2001 law vary, so have Luxembourg counsel confirm it against Legilux before it goes into a contract.

The limits of that rule matter more than the rule. It covers programs, and it covers employees. Specifications, architecture documents, interface artwork and training material are not computer programs, so they stay with their author.

For everything outside software, the transfer has to be built. An assignment of economic rights has to be proved in writing, and assignment contracts are read restrictively in the author’s favour, so a clause gesturing at “all intellectual property” gets read down. A workable clause identifies each mode of exploitation, the medium, the territory and the duration, and where it covers modes of exploitation that do not exist at signature it is valid only with specific remuneration of its own. Luxembourg practitioners also warn against burying the consideration inside ordinary salary.

One thing stays out of reach. Moral rights, the right to be named as author and to object to distortion of the work, remain with the author and cannot be waived in advance for future works.

A confidentiality clause is valid in a Luxembourg employment contract, and it binds the employee during the relationship and after it ends. The Inspection du travail et des mines (ITM) says so directly, and the usual subject matter is confidential information about the employer’s activities and business relations, including business secrets and manufacturing secrets.

The condition attached to it is the part that fails. The clause has to be circumscribed and precise. Luxembourg courts have held that a blanket prohibition on indiscretion of any kind does not work, which disposes of the one-paragraph wording in most international templates. A clause that survives describes categories: customer and pricing data, source code, product plans, supplier terms, and anything the employer marks as confidential. It also says what happens to devices, accounts and copies when the employment ends.

Behind the contract sits the law of 26 June 2019 on undisclosed know-how and business information, which transposes EU Directive 2016/943 and is the statutory route for a trade secrets claim here. What counts as a protected secret under it, and how it treats the general skill an employee is free to carry away, are questions for Luxembourg counsel on the facts.

There is a structural reason to take the clause seriously. For an employee paid under the non-compete salary floor of €67,641.70, a non-compete is deemed unwritten, so precise confidentiality wording is close to the only post-termination protection available. Our note on what a Luxembourg employment contract has to contain covers where these clauses sit.

Nothing passes automatically from a contractor, including software. The automatic transfer in the 2001 law is written for a program created by an employee, which is read as leaving a self-employed developer’s code with the developer unless the engagement assigns it. Treat that as a well-founded reading rather than an express statutory rule, and draft on the safe side of it: a contractor agreement needs an express present assignment in writing, with the specificity any copyright assignment needs.

So a contractor arrangement is not the lighter-touch option it looks like. It carries more IP paperwork than employment, and it carries it at engagement rather than at the moment of dispute. A company that has paid a Luxembourg-based developer on invoices for two years with no signed assignment does not own the code.

The second exposure runs the other way. Luxembourg decides employment status on how the relationship actually operates, so a long-running contractor working to the client’s instructions and hours can be reclassified as an employee, bringing back pay, back contributions and the termination rules with it. Our note on misclassification risk in Luxembourg sets out how the test is applied.

A Luxembourg non-compete stops the former employee carrying on a similar activity as a self-employed or independent person. It does not stop them taking a salaried job with a competitor, and the ITM says so in terms: the clause does not reach salaried activities performed for a new employer. That is the single largest misconception about Article L.125-8 of the Code du travail, and the sentence at the heart of most international templates, barring the employee from working for a competitor in any capacity, reaches past what the article permits.

The conditions are cumulative and each is a way to lose the clause. It must be in writing, failing which it is null. The employee must be of full age when signing. Gross annual remuneration at departure must exceed €67,641.70, the figure at the index of 992.24 in force from 1 June 2026, and below that line the clause is deemed unwritten. It may run no longer than twelve months after the contract ends. Its geographic reach is confined to localities where the employee could genuinely compete and cannot extend beyond Luxembourg’s national territory. And it has to relate to a determined professional sector and to activities similar to the employer’s.

The clause also falls away on the employer’s own conduct at the end. It is inapplicable where the employer terminates with immediate effect without real and serious cause, fails to respect the statutory notice, or dismisses for serious fault in a dismissal later declared abusive. Only the employee may invoke invalidity. Where a clause is defective for another reason, the outcome is for the court, and Luxembourg commentators differ on whether it is void or reduced, so plan around neither answer.

On money, Luxembourg is unlike Belgium and France: no statutory compensation is required for a standard Article L.125-8 clause, though paid clauses have become more common. The trap runs the other way. Write compensation in and the employer is held to it, because Luxembourg courts have refused to let an employer drop the clause unilaterally to avoid paying the agreed indemnity. Case law has separately been reported as accepting a strengthened clause reaching salaried competition where appropriate financial compensation is provided and the restraint proportionate. That reading is not settled enough to draft from, and anything meant to cover a salaried move to a competitor belongs with Luxembourg counsel.

A foreign template usually gets four things wrong at once: it bars employment as well as self-employment, it runs for two years, it covers Europe or the world rather than localities inside Luxembourg, and it assumes a payment is what makes a restraint enforceable. A clause drafted to the article and backed by precise confidentiality wording protects more. Note too that a non-solicitation clause is tested on its object rather than its label, so one wide enough to stop the person working is assessed as a non-compete.

These clauses go into the contract at signature, because that is the only moment when everything is negotiable. A non-compete should be agreed at the outset, and an employee cannot be dismissed for refusing to sign one. Whether one can validly be added part way through an employment is an open question in Luxembourg and one for counsel. The contract should settle at least the following:

• A present assignment of economic copyright, setting out the modes of exploitation, medium, territory and duration, with separately identified consideration
• A software clause confirming the statutory position and capturing documentation, designs and databases, which are not software
• An inventive-mission description where the role warrants one, a declaration procedure, and an acknowledgement of the equitable share
• A confidentiality clause written by category, surviving the contract, with return of devices and copies
• A non-compete drafted to Article L.125-8, or a decision to rely on confidentiality alone where pay is below the floor

Someone registered to employ in Luxembourg has to sign that contract. Employer of Record Luxembourg is registered to employ in Luxembourg, so the contract is with us, drawn up to Luxembourg requirements and signed in two originals by the first day at the latest. You keep the commercial terms, and the IP position is agreed with you before the document goes out.

A draft is usually ready within hours of the role, salary and start date being agreed. Fees are flat rather than a percentage of pay, starting at €499 per employee per month, and the current rates are set out on the pricing page.

Luxembourg social security funds a statutory package that follows the employee rather than the employer: healthcare, cash sickness benefit, long-term care, insurance against accidents at work, occupational health cover and the state pension. Several institutions administer those branches, but an employer deals with only one of them for money. The Employer of Record Luxembourg view of it is simple enough to put in a budget line: one contribution rate on each side, one statement a month, and a package the employee can rely on from the first day of the contract.

Healthcare runs through the Caisse nationale de santé (CNS), which reimburses medical costs and pays cash sickness benefit. The employer keeps paying full salary to the end of the month in which the 77th day of incapacity falls, counted over a rolling 18 months, which works out at roughly 11 to 15 weeks. The Mutualité des employeurs reimburses the employer 80% of gross salary plus employer contributions over that period, and 100% during the trial period. From the following month the CNS pays the employee directly. Our note on Luxembourg sick leave works through the counting rules.

Long-term care is a branch of its own, the assurance dépendance, financed by the contribution dépendance that the employee pays alone. Family benefits are paid through the Caisse pour l’avenir des enfants, which is also the body that pays the allowance during congé parental of four or six months per parent. Pensions are administered by the Caisse nationale d’assurance pension.

Cover does not depend on where the employee lives. Someone employed in Luxembourg who commutes in from Belgium, France or Germany is normally insured in Luxembourg under the EU coordination rules, provided they spend under half their working time in their country of residence. That is one reason the system matters to foreign employers even when nobody on the team has a Luxembourg address.

An employee in Luxembourg pays 12.95% of gross salary and a standard commercial employer pays around 13.29%, so the combined bill sits near 26% of gross. The employee share is fixed: it applies to every employer and every case. It covers the employee half of the pension contribution, healthcare in kind, cash sickness benefit and the long-term care contribution, and it is deducted at source before income tax is calculated.

The employer side is where the variation lives. It covers the employer half of the pension contribution, healthcare in kind, cash sickness benefit, accident insurance, occupational health and the Mutualité des employeurs. Two of those branches are priced to the individual employer, which is why the employer total runs from about 12.5% to 15.3% rather than sitting at one number. For accident insurance, the Association d’assurance accident applies a bonus-malus factor to the base rate, and the factor reflects how the employer’s own accident costs compare with its risk class. The Mutualité premium is set by absenteeism class, with class 2 the entry point for every new affiliate.

One feature of these rates catches employers out. They are percentages, so they stand still when wages are index-linked; it is the euro ceilings and floors underneath them that move. Our full cost of hiring guide puts it against a worked salary: on €90,000 gross, employer contributions at 13.29% come to €11,961, for a total employer cost of €101,961.

Most Luxembourg social security branches stop contributing once pay passes the plafond cotisable, a ceiling that stands from 1 June 2026 at €13,856.63 for a month and €166,279.56 across a year. Luxembourg derives it from five monthly payments of the salaire social minimum for an unskilled worker aged 18 or over, so it climbs whenever the minimum wage climbs with the index. A floor works the same way in the other direction: the contribution base cannot drop below the monthly minimum wage, €2,771.33 at present.

Six branches are capped: the pension branch, both halves of health insurance, accident insurance, occupational health and the Mutualité des employeurs. Pay above €13,856.63 in a month attracts no further contribution in any of them, which matters at senior level. The employer’s marginal social security cost on salary above the ceiling is nil, so the effective percentage of gross an employer pays falls the further above the ceiling a package sits, and an offer priced on the headline 13.29% carries a contingency it does not need.

The exception is the contribution dépendance, the long-term care contribution, which has neither a floor nor a ceiling. It is 1.40%, paid by the employee alone with no employer share, and it is calculated after an allowance of a quarter of the monthly minimum wage has been deducted, which is €692.83 a month from 1 June 2026. For work of under 150 hours a month the allowance is prorated by hours worked. So an employee’s marginal social security cost above the ceiling is 1.40% while the employer’s is zero.

The Centre commun de la sécurité sociale (CCSS) registers employers and employees, calculates every social contribution and collects the lot in a single monthly invoice. It collects on behalf of the health fund, the pension fund, the accident insurance association, the Mutualité des employeurs and the occupational health services, so an employer never pays those bodies separately. That is unusual and it makes Luxembourg payroll administration lighter than the contribution rate alone would suggest.

The cycle has three moves. The employer declares each month the gross remuneration paid to each employee and the exact number of hours actually worked, filed electronically through SECUline or MyGuichet.lu. The CCSS then calculates the contributions and issues an extrait de compte, a statement showing both the employee and the employer share. Payment is due within ten days of the date the statement is issued, and that deadline applies even where the employer disputes the content. There is a lag between the salary month and the statement it lands on, so check the timing with the CCSS before mapping it into a cash-flow forecast.

Late payment carries interest of 0.6% for each full calendar month, running from the first day of the month after the due date. Four unpaid statements is the point at which the CCSS starts forced recovery.

Registration comes first. An employer hiring in Luxembourg for the first time files a déclaration d’exploitation within eight days of the first employee’s start date and is then affiliated automatically to the accident insurance association, the Mutualité des employeurs in class 2, and an occupational health service. Each individual hire is declared with a déclaration d’entrée within eight days of the start date; past a 30-day tolerance the fine is €50 per month of delay, capped at €2,500. The monthly cycle from tax card to payslip is set out in our guide to how Luxembourg payroll works.

The global pension contribution rose from 24% to 25.5% of gross on 1 January 2026, and that is the single change a foreign employer needs in its budget. The rate is financed in equal thirds by the employer, the employee and the State, so each of the first two now carries 8.5% and the payroll-borne portion of the pension branch is 17% rather than the 16% that applied to 31 December 2025. The 25.5% level is set to hold for 2026 to 2032. Like the other capped branches, it applies only up to the plafond cotisable.

The same reform made four other changes. Pensions in payment rose by 1.5% on 1 January 2026, on top of the ordinary index-linking that lifted salaries and pensions by 2.5% on 1 June 2026. The deduction ceiling for a personal third-pillar pension plan, the prévoyance-vieillesse, went up from €3,200 to €4,500 a year, an individual deduction rather than an employer benefit. An allowance of up to €750 a month, and up to €9,000 a year, is now available to employees who give up early retirement and work through to statutory retirement age. And the 480-month insurance requirement in the pension rules increases in phases from 1 July 2026.

Entitlement itself is built from insured months rather than from a single qualifying event. Every month in which contributions are paid or credited is recorded against the employee’s social security number, and both the length of the insured career and the earnings on which contributions were paid feed the eventual pension. Insurance periods completed in other EU member states are taken into account under the EU coordination rules when a claim is made, which matters for the many people who arrive in Luxembourg mid-career. For an individual projection, the Caisse nationale d’assurance pension is the authority to ask, because the phased changes from 1 July 2026 mean the answer depends on a retirement date.

Luxembourg has no auto-enrolment obligation, so a company pension is a benefit an employer chooses to offer rather than a duty it has to discharge. The statutory pension is the only compulsory pillar. On top of it an employer may set up a régime complémentaire de pension (RCP), governed by the Law of 8 June 1999, most often as a group insurance contract, though an internal provision or a pension fund are also possible. Schemes have to treat everyone in the defined category of staff equally, so the category is worth defining carefully at the outset.

The tax treatment is the part that makes the RCP attractive, and it is unusual. The employer pays a 20% flat final withholding tax, the retenue libératoire, on the contributions it makes. The employer bears that tax rather than deducting it from the employee, declares and pays it to the Administration des contributions directes by the 10th of the following month, and the tax is itself a deductible operating expense for the company. Because the levy is final, the benefit then reaches the employee free of income tax at retirement, whether it is paid as an annuity or as a lump sum, for Luxembourg residents.

The annual deductible ceiling is a percentage, not a euro figure. It is 20% of the employee’s ordinary annual remuneration for all new schemes and all defined-contribution schemes. A legacy exception of 72% of the last annual ordinary remuneration survives for defined-benefit schemes that already existed on 1 January 2000. The employee may also pay personal contributions into the employer’s scheme where the scheme rules allow it.

• Employer contributions: taxed once, at 20%, paid by the employer
• That 20% is a deductible expense for the company
• Annual ceiling: 20% of the employee’s ordinary annual pay
• Payout: free of income tax in the employee’s hands

One figure causes more confusion than any other here. The €1,200 a year that appears in Luxembourg pension articles is the employee’s own personal contribution, deductible as a dépense spéciale on the individual tax return. It is not a cap on what the employer can put in, and it is a different thing from both the 20% employer ceiling and the €4,500 third-pillar deduction. If you want a supplementary pension in a package that runs through an EOR, agree it before the contract is signed, because the scheme sits with the legal employer. Our Luxembourg service page sets out what we run alongside payroll.

Remote work in Luxembourg is first a question of geography, because a large share of the people on a Luxembourg payroll live in Belgium, France or Germany and commute in. For them a day at the kitchen table is a day worked in another country, and two separate sets of rules start counting. For someone who lives in Luxembourg and works from home there, only the domestic telework rules apply.

The two thresholds are different numbers set by different instruments. Income tax is settled by a day count: each of the treaties with Belgium, France and Germany tolerates 34 days a calendar year worked outside Luxembourg. Social security is settled by a share of working time under Regulation (EC) No 883/2004, the EU coordination regulation, which has to stay under half, the ceiling usually written as 49.9%. Clearing one test says nothing about the other.

Employing through Employer of Record Luxembourg changes neither threshold, because both are set by treaty and EU law rather than by the employer. What it changes is who files: the EOR is the legal employer, declares the employee to the Centre commun de la sécurité sociale (CCSS), obtains the A1 certificate where one is needed, and keeps the day records. What still has to be settled is how many days at home the role allows, which country they are spent in, and who reports them each month.

Luxembourg withholds income tax through the retenue d’impôt sur les traitements et salaires on salary for work physically performed in Luxembourg, and each treaty tolerates 34 days a calendar year worked elsewhere before the tax on those days moves to the country of residence. All three sit at 34 for 2026, though they arrived there by separate instruments: Belgium from income year 2022, France from 2023 and Germany from 2024, each replacing a lower figure.

The count is not limited to telework: any working day spent outside Luxembourg goes into it, business travel and training abroad included, and the counting rules differ. France treats any fraction of a day as a full day, leaves out paid holiday, rest days, unworked public holidays and sickness, and cuts the 34 days proportionally for part-time employees and mid-year joiners. Germany counts a day only where the activity there lasted at least 30 minutes. No equivalent Belgian rule was confirmed for this article, so count Belgian days conservatively.

Going over is a cliff edge, and France is the expensive case. Once a French resident passes 34 days, every day worked in France is taxable there from the first one rather than from the thirty-fifth, and the salary has to be apportioned. The employer then needs a French SIRET, which takes roughly three to six weeks, and declares the French-taxable portion monthly through PASRAU. For Belgian and German residents the treaties work by exemption with progression, and no equivalent filing duty for a Luxembourg employer was identified, which rests on secondary sources and is worth confirming.

These numbers move by treaty, so a contract should not promise a number of home days without a review clause. Higher thresholds have been discussed between the governments, but as at 20 September 2026 all three still stand at 34. Our guide to cross-border workers in Luxembourg covers the wider frontalier position.

Social security is decided by a share of working time, not by a count of days. Under Regulation (EC) No 883/2004 an employee is insured where the work is physically carried out, so someone working only in Luxembourg is affiliated there for healthcare, pension, accident and long-term care cover whatever their country of residence, and the employer files a déclaration d’entrée with the CCSS within eight days of the start date.

Article 13 of the same regulation changes that as soon as the employee performs a substantial part of the work where they live, defined as 25% or more of working time. The whole employment relationship then moves to that country’s system, and the Luxembourg employer has to register there and pay contributions at local rates on 100% of the pay. One home-working day a week is around 20% and sits below the line; two days is around 40% and crosses it.

The multilateral framework agreement on cross-border telework is what makes two days a week workable. In force since 1 July 2023 and signed by Luxembourg, Belgium, France and Germany, it derogates from the 25% rule under Article 16(1), so habitual telework from the country of residence of 25% up to under 50% of total working time leaves social security in Luxembourg. The conditions are cumulative: an employee rather than a self-employed person, both countries signatories, telework only in the country of residence, no other habitual activity outside Luxembourg, a connection to the employer’s IT systems, and the agreement of both sides.

None of that happens by itself. The employer applies to the CCSS through SECUline, procedure DEMDET, and an A1 certificate is issued for the declared period, capped at three years; since 1 July 2024 a retroactive declaration reaches back only three months. Where nobody files and the employee teleworks 25% or more, Article 13 applies by default and the exposure sits in the residence country. At 50% or more the agreement cannot be used at all.

The practical duty is to count, per employee, and to record where each day was worked rather than assume the pattern held. That means a current work calendar showing the place of work for every working day, from which attestations can be produced. It is the most commonly missed obligation for cross-border staff, and the first thing an administration would ask to see.

The arithmetic catches people out because the two tests use different units. One home-working day a week is about 20% of working time, comfortably inside the social security ceiling, and yet it comes to far more than 34 days across a year. Set the pattern against whichever test binds first, which on a five-day week is almost always the tax tolerance.

A third exposure sits with the employer rather than the employee. A home office abroad used regularly and structurally, at the employer’s disposal and with its use required or controlled by the employer, can raise a permanent establishment question in that country. There is no Luxembourg safe harbour, so keep a workplace available in Luxembourg, record telework as voluntary, and take corporate tax advice before a pattern sets.

Where an EOR is the employer, the filings and the A1 sit with the EOR while the client who directs the work sees the pattern day to day, so agree who reports the days. Our Luxembourg EOR services page sets out that split.

Telework inside Luxembourg runs on one instrument binding every employer and employee in the country: the convention of 20 October 2020 on the legal regime of telework, made generally binding by the grand-ducal regulation of 22 January 2021. It divides telework in two: occasional telework arises from unforeseen events, or averages less than 10% of normal annual working time over the calendar year, and everything above that is regular telework, with heavier formalities.

Telework is agreed, never imposed: an employee cannot require it and an employer cannot compel it. Regular telework needs a written agreement covering the place of telework, the days and hours and when the employee must be reachable, compensation for benefits in kind lost by working at home, a monthly allowance for connection and communication costs, and the procedure for returning to the normal arrangement. Occasional telework needs only written confirmation, and an email meets that. In undertakings with 150 or more employees, introducing or changing a telework regime means informing and consulting the délégation du personnel (staff delegation). Our note on Luxembourg employment contracts covers the wider paperwork.

For regular telework the employer provides the necessary equipment, bears the direct costs including communication, provides technical support, and carries the risk of loss of or damage to equipment and data. What counts as necessary is deliberately left undefined, so list the kit in the agreement rather than argue about it later, and cost coverage may take the form of a monthly lump sum agreed in writing. None of those duties attach to occasional telework.

The tax treatment of that lump sum is where budgets go wrong. Luxembourg sets no fixed tax-free teleworking allowance. A flat monthly telework payment is taxable salary, because the income tax law treats indemnities other than non-flat-rate reimbursements of expenses incurred in the exclusive interest of the employer as pay, and the ACD expects employers to tell employees so. Reimbursing actual, documented expenses is treated differently. Monthly figures circulate as market practice; none is a tax threshold, so budget the allowance as gross pay.

Statutory working time applies to a teleworker in full: 8 hours a day and 40 a week as the norm, 10 and 48 as the maximums, 11 consecutive hours of daily rest in every 24, 44 consecutive hours of weekly rest, and a break on any day longer than 6 hours. Workload and performance criteria must match those of comparable colleagues on site, and the right to disconnect applies in the same way.

Overtime is not at the employer’s discretion in Luxembourg, and home working does not relax that. The employer sends a justified request to the Inspection du travail et des mines (ITM) in advance, with the staff delegation’s opinion or the employee’s consent, and keeps a register of overtime, Sunday and public holiday hours. Compensation defaults to time rather than money: an hour and a half off per overtime hour, with pay at a minimum of 140% of the hourly rate only where time off is impossible. Hours are harder to see at home, which is why the agreement fixes availability.

Health, safety and data duties follow the employee home. The employer informs the teleworker of the company health and safety policy, the teleworker may ask the occupational health service to inspect the place of work, and the employer trains them on the data rules covering company equipment.

Travel is the one place where an expected cost is missing and an unexpected one turns up. Public transport has been free nationwide since 29 February 2020 and remains free in 2026, so a Luxembourg-resident employee needs no commuting subsidy, though first class rail is paid. That free travel covers the Luxembourg network only: a commuter from Belgium, France or Germany travels free from the border onward and pays the foreign operator for the rest. Reimbursing home-to-work travel does not solve it, because the money is taxable salary. Our guide to employing in Luxembourg puts those costs in context.