A Luxembourg employment contract has to be in writing, drawn up individually for each employee, and signed in two originals so that each party keeps one, at the latest at the moment the employee enters service. There is no grace period. The Inspection du travail et des mines (ITM) attaches the rule to Article L.121-4 of the Code du travail.

That article lists what the document carries: the identity and addresses of the parties; the date the contract takes effect; the place of work, or, where there is no fixed one, the principle that the employee works at various places, with the employer’s registered office; the job title, the category and the tasks; normal daily or weekly working time, the overtime arrangements and the normal work schedule; remuneration, with the basic salary, the index cote in force and every supplement, bonus and gratification shown separately, and the payment frequency; paid annual leave; the notice each side must give; the length and terms of any probation period; any supplementary or derogating clauses, which have to be more favourable to the employee; the applicable collective agreement and the body that concluded it; the social security bodies collecting contributions and any régime complémentaire de pension; and the training the employer provides. Leave, notice, the collective agreement, the social security bodies and training may be covered by reference to the law or agreement that governs them.

Since the Law of 24 July 2024 the core items, the parties through to the probation period, must also reach the employee within seven calendar days of the start, and the rest within a month. Non-compliant information is fined per employee affected, from €251 to €5,000, so one template fault across a team multiplies. Our step-by-step guide to hiring in Luxembourg sets out where the contract sits in the sequence.

Luxembourg prescribes no language for the employment contract itself. The ITM’s published position is that it may be drawn up in any language understood by both contracting parties, so an English contract is valid where the employee genuinely reads English. The test is comprehension, and the same standard applies to a dismissal letter.

The exposure runs the other way. A contract written in a language unknown or virtually unknown to the employee can be declared void for defect of consent, which the ITM grounds in Article 1109 of the Civil Code, so the employer has to be able to show the employee understood.

English stops at the administration. Luxembourg’s three administrative languages are French, German and Luxembourgish, under Article 3 of the Law of 24 February 1984 on the language regime, and English is not among them. The Centre commun de la sécurité sociale (CCSS) publishes its entry and exit declarations only in French and German, and the main returns of the Administration des contributions directes (ACD) exist in the same two languages. Before the Tribunal du travail, documents in other languages may in principle need translating into French, although English exhibits are often admitted in practice.

The market answer for an international employer is a bilingual contract: English and French in parallel, with a governing-language clause naming the version that prevails if the two diverge, usually the French one. That is practice rather than law, and the clause does less than it looks. It settles a discrepancy between the two texts; it does not displace the 1984 Law for filings or court documents.

The contrat à durée indéterminée (CDI, the open-ended contract) is both the default and the residual category: a contract that is not validly something else is a CDI. The contrat à durée déterminée (CDD, the fixed-term contract) is available only for a precise and non-durable task, and may not fill, on a lasting basis, a post connected with the normal and permanent activity of the business.

The permitted grounds the ITM lists include replacing an employee who is temporarily absent or suspended, holding a vacant CDI post until the permanent successor arrives, seasonal work, sectors where fixed terms are customary such as audiovisual work and professional sport, a temporary and exceptional rise in activity, urgent work to prevent accidents, and hiring a jobseeker registered with ADEM. A striking employee may not be replaced this way, nor a shortfall caused by economic or weather conditions covered.

A CDD runs for 24 months at most, renewals and any probation included, and it may be renewed twice. The renewal has to be provided for in advance, by a clause in the original contract or by an avenant; renew without one and the contract is treated as a CDI. Seasonal contracts are capped at ten months in any twelve; research contracts may run to 60. Beyond the Article L.121-4 particulars, it states the reason for the fixed term, the end date or a minimum duration, the name of the replaced employee where that is the ground, any probation period and the renewal clause. A waiting period equal to one third of the expired contract has to elapse before the same post is filled with a new CDD.

Break those limits and the employee can have the contract requalified as a CDI. The triggers the ITM lists include a fixed term used for a permanent post in the normal activity of the business, a task that is not precise and non-durable, no writing when work begins, no end date and no minimum duration, the 24-month ceiling passed, renewal with no renewal clause, and a third renewal. Leaving out one of the mandatory particulars does not by itself cause requalification, and only the employee can invoke it. For the employer that means losing the end date: the contract then ends only by resignation, by dismissal with statutory notice on real and serious grounds, or by agreement, under the rules in our guide to ending employment in Luxembourg. Where a CDD runs its course and the parties carry on under a CDI, no new probation may be imposed and seniority carries over.

Probation in Luxembourg is optional, has to be agreed in writing at the latest at the moment the employee enters service, and lasts a minimum of two weeks. The maximum depends on the employee: three months below CATP/DAP qualification level, six months at that level or above, and twelve months where the contracted gross monthly salary reaches the statutory threshold, which the ITM puts at €5,318.41 at the index of 992.24 in force since 1 June 2026. That threshold is index-linked, so check the current figure before writing twelve months into an offer.

One probation period is allowed per employment relationship and it cannot be renewed. No fresh probation can be imposed on the same post, on promotion to a different role, or when a fixed-term contract is continued as a CDI. Absence through illness, family leave or pregnancy suspends it, and on return it is extended by the length of the absence, capped at one month. Inside a CDD, probation is limited to one quarter of the stipulated duration.

Notice during probation runs on its own scale and is the same for both sides. Neither party may terminate during the first two weeks, except for faute grave (serious misconduct). After that, a probation set in weeks carries one day’s notice for each week agreed, and one set in months carries four days for each month, with a floor of fifteen days and a ceiling of one month. On the ITM’s own examples, one month of probation gives fifteen days and six months gives twenty-four.

The clause that fails most often is the non-compete, because Luxembourg restrains something narrower than a foreign template assumes. Under Article L.125-8 of the Code du travail, a clause de non-concurrence prevents a former employee from carrying on a similar activity as an independent or self-employed person. It does not stop them taking salaried employment with a competitor, and the ITM says so in terms, so a clause barring someone from working for a competitor in any capacity reaches past the article.

The statutory conditions are cumulative. The clause must be in writing or it is null; the employee must be of full age when signing; gross annual pay at departure must exceed €67,641.70 at the index of 992.24, and below that the clause is deemed unwritten; it may run no more than twelve months after the contract ends; it must be confined to localities where the employee could genuinely compete, and cannot extend beyond Luxembourg’s national territory; and it must name a determined professional sector and activities similar to the employer’s. It also falls away if the employer dismisses with immediate effect without real and serious cause, ignores the statutory notice, or dismisses for a serious fault later held abusive.

Luxembourg does not oblige an employer to pay for a non-compete, unlike Belgium and France, though paid clauses have become more common. Write compensation in and the employer is held to it: a Luxembourg labour court has refused an attempt to drop the clause unilaterally and avoid paying. Case law has also accepted strengthened clauses reaching salaried competition where compensation is appropriate and the restraint proportionate, so anything drafted that way belongs with Luxembourg counsel.

Three further imports fail quietly. A clause forbidding the employee to work for another employer outside the agreed normal working hours is null and void unless objectively justified by health and safety, confidentiality or a conflict of interest. A confidentiality clause is valid and survives the contract, but it has to be circumscribed and precise, because a blanket ban on indiscretion of any kind has been held invalid. And a part-time contract that leaves out the hours and their distribution makes the employee presumed full-time. Our note on protecting IP when hiring in Luxembourg goes further.

Someone registered to employ in Luxembourg has to sign the contract, because it binds a Luxembourg employer and carries that employer’s filing duties. 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 with the employee by the first day at the latest.

The commercial terms stay with you: the role, the salary and how it will move, the benefits, any probation, and whether a fixed term is justified. We draft the document and say where a clause used elsewhere will not hold under the Code du travail, most often the non-compete, the notice provisions and anything assuming employment can end at will.

A draft is usually ready within hours of the salary and start date being agreed, and onboarding typically takes one to two days for EU nationals once the employee’s details are in. The déclaration d’entrée goes to the CCSS within eight days, the tax card follows from the ACD, and payroll runs from there. The fee is flat, from €499 per employee per month, on the pricing page.

Sick pay in Luxembourg begins with the employer and moves to the state, and most of what the employer pays out comes back. An employee who falls ill notifies the employer on the first day of absence and produces a medical certificate by the third. The employer then continues the full salary until the end of the calendar month in which the 77th day of incapacity for work falls, counted in calendar days over a rolling period of 18 successive months. From the month after that, the Caisse nationale de santé (CNS) pays the employee directly.

The figure that changes a budget is the reimbursement. Every employer in Luxembourg belongs to the Mutualité des employeurs, the employers’ mutual fund, which refunds 80% of that continued pay, gross remuneration and employer social contributions together, for ordinary sickness and for workplace accidents. Where the incapacity occurs during the initial three-month trial period, the refund is 100%.

So a headline that reads like three months of full salary at the employer’s risk turns into something much smaller in cash terms. The employer funds the salary first and is credited afterwards, which makes a long absence a timing question on four fifths of the amount rather than a cost. Employer of Record Luxembourg runs that cycle each month for client employees who are off sick: pay, declare, claim, credit.

The rules set out below are those in force on 20 September 2026, under the Code du travail and the continued-pay guidance published by the Luxembourg authorities. They apply to every employee on a Luxembourg contract, including the many who commute in each day from Belgium, France or Germany.

Two deadlines govern a Luxembourg sick absence: the first day and the third. The employee must tell the employer of the absence on the first day, as soon as possible, and no particular form is required, so a telephone call, an email or a text message all count. By the third day of incapacity at the latest, the employee must produce a medical certificate.

The certificate comes in three parts. Volet 1 goes to the CNS, volet 2 to the employer and volet 3 stays with the employee. The first two share the same third-day deadline. Where the employee is admitted to hospital as an emergency, the deadline for the certificate extends to eight days.

Short absences are treated differently by the two recipients, which catches employers out. The CNS requires a certificate only where the absence runs beyond two working days. The employer may nonetheless require one from day one, including for a one or two day absence. That is a policy decision worth taking before the first absence rather than during it, and worth writing into the contract or the staff handbook so the same rule applies to everyone.

Missing either deadline costs the employee the protection against dismissal described further down. It does not automatically cost the pay: where the certificate is eventually produced, even late, within the continued-pay period, the right to the continued salary can survive. Record the date each certificate reaches you, because that date decides which of the two consequences applies.

The employer pays full salary until the end of the calendar month in which the 77th day of incapacity for work occurs, over a reference period of 18 successive months. Four details inside that sentence decide what it costs.

• The days counted are calendar days on which the employee was declared unfit for work, not working days, so weekends inside a period of illness count.
• The reference period is 18 successive months and it rolls, so the count does not reset on 1 January.
• The obligation runs to the end of the month in which day 77 falls, not to day 77 itself.
• Where illness is intermittent, the condition has to be re-checked every month, because scattered days build towards the same threshold.

Seventy-seven calendar days is exactly eleven weeks. Rounding up to the end of that month adds anything between a day and a further four weeks, which is why the obligation works out at roughly 11 to 15 weeks of employer-paid sickness in practice. An employee signed off from 20 January reaches day 77 on 6 April, and the employer keeps paying to 30 April. The same illness beginning on 1 March reaches day 77 on 16 May, and pay continues to 31 May.

Intermittent absence is where employers lose the thread. Somebody with a recurring condition may be off for nine days in one month, none the next and three weeks the month after, and every one of those days counts towards the 77. A running total from the first day of incapacity, checked against the rolling 18-month window at each payroll, is the only dependable way to know which month the obligation ends in.

The Mutualité des employeurs reimburses the employer 80% of the payroll charge of a sick employee, which means gross remuneration and employer social contributions together rather than gross salary alone. The refund covers ordinary sickness and workplace accidents. It rises to 100% for incapacity occurring during the initial three-month trial period, and family leave for a sick child, the congé pour raisons familiales, is reimbursed in full as well.

Figures make the size of it clear. An employee on €60,000 gross a year costs an employer €67,974 once employer contributions are added, which is about €5,665 a month of payroll charge. A full month of certified sickness therefore costs roughly €5,665 in the month it happens, of which about €4,532 is refunded, leaving a net cost near €1,133 for that month. The calculation uses the employer contribution rate of 13.29% that applies to a standard commercial employer in 2026, with no bonus, benefit in kind or supplementary pension included.

Affiliation is compulsory and the fund is financed by employers alone. Contributions to the Mutualité des employeurs are set by risk class, with four classes based on an employer’s financial absenteeism rate over a reference period, and every new affiliate starts in class 2. The rates attached to those classes are fixed annually by the Centre commun de la sécurité sociale (CCSS), so check the current one at ccss.public.lu before it goes into a budget. Absence from workplace accidents, maternity leave and family leave is excluded from the classification calculation.

An employee off sick is protected against dismissal for up to 26 weeks from the onset of the incapacity. During that window the employer may not dismiss, may not serve notice and may not convene the employee to an entretien préalable (the preliminary disciplinary meeting). The protection holds even where the employer considers it has grounds amounting to faute grave, serious misconduct.

Protection depends on the employee having met both deadlines, the notification on day one and the certificate by day three. It also falls away in two situations: where the incapacity results from the employee’s voluntary participation in a crime or offence, and where the employee received notice of dismissal before the employer knew of the incapacity. The second turns on sequence and on evidence, which is the practical reason to log the moment a certificate arrives.

After 26 weeks an employer may dismiss, and the ordinary Luxembourg rules then apply in full. The dismissal needs real and serious grounds, and the employer has to be able to show the disruption the absence caused to the business. Notice periods, the rule of the 15th and the indemnité de départ are set out in our guide to terminating employment in Luxembourg.

On what an employer may ask during the absence: you may require a certificate from the first day, ask for the dates of the certified incapacity, and keep the running count of days the 77-day rule depends on. Sickness does not consume annual leave, and leave that could not be taken because of incapacity for work may be taken after the return to work rather than being lost. A trial period is suspended by illness and extended by the length of the absence, with the extension capped at one month.

A month of sickness looks at first like an ordinary month on an EOR invoice, because the employer pays the full salary and the refund arrives later. Payroll runs as normal, the employee receives full pay, employer and employee contributions are paid over, and the sick days are reported to the CCSS on the monthly déclaration de salaires et incapacités de travail, which is returned within ten days.

The credit follows in a later month, once the claim has been processed. Whoever is the legal employer carries the money in between, which is the reason to ask any provider how it treats the refund before signing: whether the reimbursement is passed on when it lands, shown as a separate line, or simply absorbed. Our flat fee of €499 per employee per month does not move while someone is off sick. What moves is the salary line and the credit set against it.

The picture changes again in the month after day 77. From then the CNS pays the employee directly, so the salary stops running through payroll and the employer’s continued-pay obligation, with its refund, comes to an end. The employment itself continues: the contract stays in place and the employee stays registered with the CCSS.

For budgeting, carry the net number rather than the headline. Allow roughly a fifth of a month’s payroll charge for each full month of certified sickness, treat the gross amount as a timing item, and note that the 100% refund during the trial period makes an early absence in a new hire’s first three months close to cost-neutral. Our note on the cost of hiring in Luxembourg sets those figures beside the rest of the employer cost, and the pricing page shows what the fee covers.

Employment in Luxembourg cannot be ended at will, and nothing in a contract can make it so. A contrat à durée indéterminée (CDI, an open-ended contract) may be terminated by the employer only on real and serious grounds, motifs réels et sérieux, and only through a written process with fixed dates inside it. An employer used to two weeks’ notice, or to none, should expect months between the decision and the final payslip.

There are two families of grounds: 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. A dismissal resting on neither is exposed, and the reasons must be capable of being stated with precision, because the employee can compel the employer to state them.

Form carries as much weight as substance. A dismissal announced in a meeting and never confirmed in writing starts none of the clocks that follow, and an oral dismissal is abusive in itself. An employee who resigns is held to the same standard, in writing, with notice of their own.

Probation works differently. During a période d’essai (trial period) either side may end the contract on short notice calculated from the agreed length of the trial, and the first fortnight is closed to termination except for serious misconduct. Everything below concerns the ordinary contract once probation has passed; probation drafting sits in our guide to Luxembourg employment contracts.

Statutory notice on dismissal is two months for an employee with less than five years’ service, four months from five to under ten years, and six months at ten years or more, measured by seniority on the date notice is given. An employee who resigns gives half of each figure, so one, two or three months. These are floors in the Code du travail; a contract may improve on them but not cut them.

Then comes the detail foreign employers almost always miss. Notice does not run from the date of the letter. Posted before the 15th of the month, it begins on the 15th of that same month; posted on or after the 15th, it begins on the 1st of the following month. The postmark governs, not the date typed on the page and not the day the envelope lands, and the same rule applies to a resignation.

Real elapsed time from decision to last day is therefore the statutory notice plus up to a fortnight. A letter posted on 16 March to an employee with six years’ service starts a four-month notice on 1 April, and the employment ends on 31 July, four and a half months after the envelope went out. Salary, employer contributions and leave accrual run throughout, so build the exit budget on the longer period.

Once notice starts it is fixed, and illness or leave falling inside it does not extend it. An employer may release the employee from working the notice, but that shortens nothing for seniority or severance, and Luxembourg provides a statutory job-search leave during notice, so assume some paid absence.

A dismissal with notice is notified by registered letter, or handed over against the employee’s signature, in a language the employee actually understands. Luxembourg names no compulsory language; the standard is comprehension, so a letter to someone who works in English is written in English even though the declarations around it are made in French or German. The letter itself need not state the reasons.

Employers with 150 or more employees must hold a preliminary meeting, the entretien préalable, before any dismissal outside probation, whether with notice or with immediate effect. The employee is convened by registered letter with acknowledgement of receipt, stating the object, date, time and place of the meeting and the right to be assisted by a colleague or a trade union representative. The meeting is held no earlier than the second working day after the convocation goes out, and the dismissal letter follows between the day after the meeting and eight days after it. Skipping the procedure costs up to one month’s salary in compensation for procedural irregularity.

Below 150 employees there is no such obligation, which covers most single hires and small teams. A lower threshold does bite: an employer with 15 or more employees must notify the Comité de conjoncture, on the official form, of every dismissal on grounds not inherent in the person of the employee. Both thresholds attach to the employing undertaking, so an exit plan starts with which entity is counting heads.

An employee dismissed with notice may demand the reasons in writing, and the employer then has one month to answer. The request must reach the employer by registered letter within one month of the dismissal being notified, and it may be sent by a lawyer or a trade union official on the employee’s behalf. The employer replies within one month of receiving it, again by registered letter, setting out precise and concrete reasons.

Missing that reply is the most expensive administrative error in Luxembourg termination. Failure to answer in time makes the dismissal automatically abusive, whatever the merits of the decision, and the employee moves straight to damages. A reply offering a general formula such as loss of confidence, with no facts attached, is barely better, because the reasons must be concrete enough for a tribunal to test.

Note that the two months stack: the employee has a month to ask and the employer a month to answer, so a request can land well after the notice period has started running. For a dismissal with immediate effect the position is different, because the reasons must already be set out precisely in the dismissal letter.

Severance in Luxembourg, the indemnité de départ, starts only at five years’ service, and nothing is due below that. It is payable on dismissal with notice, never on resignation and never where the dismissal is for serious misconduct. Seniority is assessed at the expiry of the notice period, even where the employee was released from working it, so someone at four years and nine months on the date of the letter can still cross the threshold before the contract ends.

• Less than 5 years: no severance
• 5 to under 10 years: 1 month’s salary
• 10 to under 15 years: 2 months’ salary
• 15 to under 20 years: 3 months’ salary
• 20 to under 25 years: 6 months’ salary
• 25 to under 30 years: 9 months’ salary
• 30 years and above: 12 months’ salary

The payment is calculated on the average gross salary of the twelve months preceding the dismissal and falls due at the end of the notice period. An employer cannot shrink it with short notice, because seniority is then assessed as though the legal notice had been given. Employers with fewer than 20 employees may elect to extend the notice period instead of paying, on a scale running from five months in place of one month’s severance up to eighteen months at thirty years.

On tax, be careful with what you read. The indemnité de départ is treated favourably for income tax, but the exemption is subject to statutory limits and is not unlimited. Confirm the position for the specific payment with the Administration des contributions directes (ACD) before promising a net figure.

Dismissal for faute grave ends the contract immediately, with no notice and no severance, and the test is demanding. The fault must be grave enough to make it immediately and definitively impossible to maintain the working relationship, judged against the employee’s record, training and circumstances. The employer has one month from the day it learned of the facts to act, and the letter must set out those facts precisely: vague wording is fatal and cannot be repaired later. Pending the decision the employer may suspend the employee, a mise à pied, on full salary and benefits.

Some employees cannot be dismissed at all for a period, and sick leave is the one that catches employers out. An employee on certified incapacity is protected for up to 26 weeks from the onset: the employer may not serve notice, may not dismiss for serious misconduct, and may not even convene the employee to a preliminary meeting. The protection depends on the employee having met the notification and certificate duties, and does not apply where the dismissal was notified before the employer knew of the incapacity. The detail sits in our guide to Luxembourg sick leave rules.

Pregnancy, maternity and parental leave carry protections of their own, and a dismissal in breach is null rather than merely abusive, which opens the door to reinstatement. Staff delegates are protected throughout their mandate and for six months after it, and for them even the convocation to a preliminary meeting is void. Check status before choosing a date.

An employee who considers the dismissal abusive has three months to bring a claim before the Tribunal du travail. The period runs from the earliest of four events: notification of an immediate dismissal, notification where no reasons were requested, receipt of the employer’s written reasons, or the date by which the employer should have replied. A written claim sent to the employer interrupts it and opens a fresh period of a year, so a file is not safely closed on the three-month anniversary.

Where a dismissal is held abusive the tribunal awards damages: material loss, being earnings lost over a reference period the tribunal fixes, less unemployment benefit received and conditional on the employee showing genuine efforts to find work, and moral damages for the distress of losing the job. Reinstatement is not the ordinary remedy and belongs to the cases where a dismissal is null. The contrast with at-will practice is in our note on US and Luxembourg termination rules.

Through an exit, an Employer of Record runs the employer-side mechanics while the client makes the commercial decision. Employer of Record Luxembourg is registered to employ in Luxembourg and is the legal employer, so the letter is drafted in a language the employee understands, posted by registered mail against the rule of the 15th, the reply window is diarised, and any Comité de conjoncture notification is filed.

The closing work is payroll and paperwork. Final pay covers salary to the end of the notice period, untaken annual leave and the indemnité de départ where seniority reaches five years, with contributions settled on each. An exit declaration closes the record at the Centre commun de la sécurité sociale (CCSS). Costing an exit before the hire beats costing it after the decision, so send us the seniority and the salary.

Employee misclassification in Luxembourg means engaging someone as an independent contractor when the working relationship carries the features of employment. The heading on the document does not settle it. A Luxembourg judge looks at how the two sides actually worked together, and where that picture is one of employment, the relationship is an employment relationship whatever the invoices say.

Article L.121-1 of the Code du travail builds a contract of employment from three elements: work performed, remuneration paid for it, and a lien de subordination, the bond of subordination between the person doing the work and the party receiving it. The first two are present in almost every contractor arrangement as well, which is why they rarely decide anything. The third element separates a supplier from an employee.

Foreign companies usually reach a contractor arrangement for practical reasons rather than to avoid a duty. There is no Luxembourg company to employ through, the candidate is available now, and an invoice is easier to process than a foreign payroll. The arrangement then hardens quietly: within a year the person works set hours, takes direction from a manager and has stopped looking for other clients.

The exposure sits with the business receiving the work. The contractor is the party who gains from reclassification; the client is the party who pays for it.

Subordination is the deciding element, and Luxembourg case law describes it as the state of a person working according to another party’s directions, without independence in how the task is carried out. The test is not seniority, nor the size of the fee. It is whether someone else decides how the work gets done.

Several things that feel decisive to a foreign employer carry no weight on their own. The title of the agreement, including the familiar contrat de collaboration indépendante, proves nothing. Neither does the intention the parties recorded when they signed, nor the way the person is affiliated for social security, nor the fact that invoices rather than payslips changed hands. Luxembourg courts have held that documentation of that kind does not establish the position without supporting facts about how the relationship ran.

The principle runs in both directions, which is the part most compliance notes leave out. Where the bond of subordination is not made out, the relationship is not an employment contract however tightly the commercial terms are drawn. Coordination that any shared piece of work needs, such as agreeing when a supplier is available, is not in itself evidence of authority over them.

Luxembourg courts apply no single decisive question; they weigh a bundle of indicators, the faisceau d’indices, and read them together. The case law groups them around the posture of the party receiving the work, the framework the activity sits inside, and the clauses of the agreement.

• Direction and control: who gives the instructions, who supervises the output, and whether the person can be sanctioned for how they work
• Organisation: whether the activity is integrated into an organised service, with the schedule, the place of work and the territory set unilaterally by the other party
• Interest: whose business the activity is carried on for
• Economic risk: who carries the financial consequences of the work, including the cost of putting defective work right
• Clauses: exclusivity, non-solicitation and non-competition terms in a services agreement, which point towards subordination rather than away from it

Four practical questions sit alongside that list, because they are how independence shows itself day to day: whether the person can decline a piece of work without consequence, whether they may send a qualified substitute in their place, whether they supply their own tools, software and workspace, and whether they have other clients or draw their whole income from one.

No single indicator settles a case, and having one client does not by itself make someone an employee. What moves a court is accumulation: set hours, supplied equipment, a named manager, an exclusivity clause and no risk of loss, all in the same relationship.

Three bodies matter, and they act in different ways. The Inspection du travail et des mines (ITM) is the labour inspectorate: it enforces the Code du travail, inspects workplaces and handles undeclared work. The Centre commun de la sécurité sociale (CCSS) registers employers, affiliates employees and collects every social contribution, so a worker who was never declared is a CCSS matter as well as a labour one. The Tribunal du travail, the labour court, is where a relationship is reclassified.

Reclassification comes through a court claim rather than an administrative ruling. The worker brings it, and the assessment is factual, made by the judge on the evidence of how the engagement ran. There is no register to check and no clearance to obtain in advance, which is why status questions surface late, once something else has gone wrong.

The triggers are predictable. The engagement ends and the person asks for notice and severance. A long illness arrives with no sick pay behind it. There is an accident with no employer insurance. Or an inspection reaches the site and asks who the people working there are.

The CCSS side runs on deadlines that assume employment was declared from the first day. An employee is declared within eight days of the start date, and late entry and exit declarations are fined €50 per month of delay, capped at €2,500. A contractor engagement that is later treated as employment was, on that view, never declared at all.

Reclassification turns the engagement into an employment relationship with everything the Code du travail attaches to it, applied backwards across the period worked. That means wages and paid annual leave, overtime pay, the protections an employee has at work, and the termination rules, including notice and, where the length of service reaches the threshold, the indemnité de départ. Someone treated as a supplier for three years becomes an employee of three years’ standing.

Contributions are the second exposure, and the amount depends on the case. Once a relationship counts as employment, Luxembourg social security was due on it from the employer side as well as the employee side across the period concerned, and the declarations that should have been filed were not. Luxembourg publishes no tariff for working that back, so treat it as a real liability to quantify with advice rather than a figure you can look up.

The separate exposure is travail clandestin, undeclared work, and it is penal. A first offence carries a fine of €251 to €5,000. A repeat within five years can bring imprisonment of eight days to six months, a fine of up to €10,000, or both. Liability reaches beyond whoever was paid: under Articles L.571-4 and L.571-6 of the Code du travail the client ordering the work, the person supplying it without the authorisation their activity requires, and the worker can each be pursued, and the client is jointly liable for the contributions owed on the undeclared services.

Luxembourg has no offence named misclassification. The exposure runs instead through the employment rights the relationship turns out to have carried and through the undeclared work rules.

A genuine contractor relationship is one where the other party is running a business of their own, and both the paperwork and the daily practice say so. It starts with the work itself: a defined deliverable with its own scope and its own price, rather than an open-ended commitment of days at a rate that renews forever.

• The person is in business on their own account and holds the autorisation d’établissement (business permit) their activity requires, where one applies
• They decide their own hours and their own place of work, and they use their own equipment
• They invoice against agreed deliverables, carry the cost of correcting defective work, and are free to serve other clients
• The agreement leaves out exclusivity, non-solicitation and non-competition clauses, all of which read as indicators of subordination
• Intellectual property is assigned expressly in writing, because the statutory rule handing software written in the course of employment to the employer is written around employees

The warning signs in an existing engagement are easy to recognise once listed. The person has been with you for years on rolling renewals. They appear on the internal organisation chart and have a manager who approves their time off. They work your hours, on your systems, to a schedule you set. They have no other clients, and would have nothing to bill if you stopped sending work. Where several of those are true at once, redrafting the services agreement fixes nothing, because the facts are what a court reads. The rules on Luxembourg employment contracts set out what the alternative looks like, and our note on protecting intellectual property when hiring covers the assignment point in more detail.

Where the role is really a job, the practical choice is between forming a Luxembourg company and employing the person through an Employer of Record. An EOR becomes the legal employer of the person you have already chosen: the contract is with the EOR, signed in two originals by the first day of work with the particulars required at Article L.121-4 of the Code du travail, the employee is declared to the CCSS within eight days, the fiche de retenue d’impôt (tax card) comes from the Administration des contributions directes (ACD), and payroll runs in euros monthly. You keep the role, the salary decision and the direction of the work.

Employer of Record Luxembourg is registered to employ in Luxembourg, which allows a contract to be issued and payroll to start in days rather than after a company formation of eight to fourteen weeks. The fee starts at €499 per employee per month, charged flat rather than as a percentage of salary, and the employer cost of the salary is the same on either route because Luxembourg law fixes it at about 13.29% of gross for a standard commercial employer. The full cost of hiring in Luxembourg sets out the arithmetic.

Converting an existing contractor is a short exercise, and doing it cleanly matters more than doing it quickly. Set a gross salary rather than carrying the old day rate across, remembering that employer contributions sit on top of gross and that the person no longer invoices for the holidays they now take as paid leave. Get the contract signed before the first day and stop the invoices on the same date. The steps are those of any new hire, set out in our guide to hiring an employee in Luxembourg.

From that point the person has the ordinary statutory package, and the client has a relationship whose status nobody argues about later.

Budget the gross salary plus 13.29%, then the cost of the benefits you decide to offer, and separately whatever a provider charges to administer it, which is one of the questions worth asking before choosing an EOR. On a gross salary of €90,000 a year that gives a total employer cost of €101,961, which is 1.13 times the salary. On €60,000 the same rate produces €67,974. Employers arriving from outside usually expect a bigger uplift than that, because Luxembourg funds much of its social protection from the employee side of the payslip and from general taxation rather than from a heavy employer charge.

The headline rate is the typical one for a commercial employer rather than a universal figure. The full range runs from roughly 12.5% to 15.3%, and where a particular employer sits inside it depends on two things specific to that employer, both explained below. Everything else is outside the percentage: meal vouchers, a supplementary pension, a car, and the fee if someone else holds the employment relationship. Employer of Record Luxembourg charges a flat €499 per employee per month for that, which does not move when the salary does.

One number is missing from almost every foreign budget, and it is the reason a Luxembourg payroll forecast drifts. Salaries here are index-linked by law, so payroll cost can rise 2.5% across the board in a month, with no negotiation and nothing the employer can do about it. The last section of this guide prices that effect on the same €90,000 hire.

On €90,000 gross the employer pays €11,961 in contributions, for a total employer cost of €101,961, and the employee is left with €58,759.86 a year. Spread over twelve monthly salaries that is €4,896.65 in the bank each month, an effective deduction rate on the gross of 34.71%. The employee’s own social security takes €11,538.60 and income tax, including the 7% solidarity surcharge, takes €19,701.54. Those two are deductions from the salary, not additions to the employer’s bill.

A cost figure without its assumptions is not a budget, so here are the ones behind it.

• A single employee in tax class 1, resident in Luxembourg, with no dependants.
• Social security and tax parameters in force from 1 June 2026, at index 992.24.
• Accident insurance at the neutral bonus-malus factor.
• The Mutualité des employeurs class that every new employer is placed in on affiliation.
• Standard deductions only, with no personal reliefs beyond them.
• No bonus, no benefit in kind, no supplementary pension and no collective agreement uplift.
• Twelve monthly salaries. A thirteenth month is not statutory in Luxembourg.

Change any one of those and the arithmetic changes. A married employee, or one with children, sits in a different tax class and keeps more of the same gross. An employer with a poor accident record or a high sickness absence rate pays more than 13.29%. And a thirteenth payment becomes an enforceable right only through the contract, a collective agreement or settled practice, which is why a Luxembourg offer letter should say plainly whether one is being promised. The mechanics of the payslip itself are set out in our guide to how Luxembourg payroll is calculated.

Six employer contributions sit above a Luxembourg salary, and together they make up the 13.29%. They fund the pension, healthcare in kind, cash sickness benefit, accident insurance, occupational health and the Mutualité des employeurs, which reimburses employers for the salary they keep paying while an employee is off sick. The Centre commun de la sécurité sociale (CCSS) collects all six together, so an employer receives one monthly statement.

Two of those lines are employer-specific, which is what produces the 12.5% to 15.3% range. Accident insurance carries a bonus-malus factor set by reference to the employer’s own claims record against its risk class. Affiliation to the Mutualité is compulsory and the class is set by the employer’s financial absenteeism rate, with every new affiliate starting in the same class. A young employing entity therefore cannot assume the best case, and a large one with a poor record should not assume the typical case.

What does not sit above the salary is worth naming, because foreign budgets often include it by reflex. There is no employer unemployment contribution in Luxembourg; the employer’s list is the six branches above and nothing else. The 7% solidarity surcharge is added to the employee’s income tax, not to the employer’s contributions. The employee’s 12.95% comes out of the agreed gross rather than on top of it.

Employing through a provider adds one more line and removes several. Our fee starts at €499 per employee per month, charged flat rather than as a percentage of pay, and the current structure is on the pricing page. The contributions themselves are identical either way, because the rates are fixed by Luxembourg law rather than by the provider.

Contributions stop growing once pay passes the plafond cotisable (the contribution ceiling), which is €13,856.63 a month and €166,279.56 a year from 1 June 2026. The ceiling is set at five times the monthly social minimum wage for an unskilled worker, so it moves whenever that figure moves. At €90,000 the salary sits comfortably below it and every branch applies to the whole amount, which is why the worked example is a clean 13.29%.

At senior salaries the effect is large and works in the employer’s favour. Pension, healthcare, cash sickness, accident, occupational health and the Mutualité are all calculated on a base capped at the ceiling, so a salary of €250,000 carries the same employer contribution as one at €166,279.56. The marginal employer social security cost of the euros above the ceiling is nil, and the effective employer rate on a very senior package falls well below 13.29%.

One contribution ignores the ceiling. The contribution dépendance (the long-term care contribution) is charged at 1.40% on the whole salary with no cap, after an allowance equal to a quarter of the monthly social minimum wage. It is paid by the employee alone, so it never reaches the employer’s side of the calculation, but it does mean a highly paid employee’s marginal social security deduction is 1.40% rather than nothing.

For budgeting, a flat multiplier is safe below the ceiling and misleading above it. Model senior hires separately rather than applying 1.13 to every salary in the plan, and remember the ceiling is reset by indexation rather than by an annual decree.

Almost none of the Luxembourg benefits package is statutory, and almost all of it is expected anyway. Meal vouchers, chèques-repas, are the most common benefit in kind in the country. The face value is capped at €15, of which €12.20 is the exempt employer share and €2.80 is a contribution the employee has to make for the exemption to hold. An employer that absorbs that €2.80 turns it into a taxable benefit in kind, which is a common and avoidable error. Vouchers have been digital only since 1 January 2025.

A supplementary pension, the régime complémentaire de pension (RCP), is the next most common line in a mid-market package. The employer funds it, pays a 20% flat final withholding tax on the contributions out of its own pocket, and can fund up to 20% of the employee’s ordinary annual pay under the scheme rules. Because the tax is final, the benefit reaches the employee tax free. So the real cost of a €5,000 contribution is €6,000, and that is the number to put in the budget.

Company cars are widespread in Luxembourg white-collar packages, and the lease is the employer’s cost. What the rules fix is the value taxed in the employee’s hands: a flat 2% a month of the new-vehicle price including VAT for combustion and hybrid cars first registered from 1 January 2025, and 0.5% or 0.6% for pure electric cars registered between 1 January 2023 and 31 December 2026, with those preferential electric rates doubling from 1 January 2027. That last date matters for any car being ordered now.

Two further items belong in the model. The prime participative, a profit-sharing bonus, is 50% exempt from income tax within caps of 7.5% of the employer’s prior-year profit and 30% of the employee’s gross annual pay, while remaining fully subject to social contributions. And commuting costs nothing: public transport has been free nationwide since 29 February 2020. Reimbursing an employee’s home-to-work travel instead is treated as taxable salary, so the free network is the cheaper answer as well as the simpler one. Employer-paid top-up health cover is common, but confirm its treatment with your payroll provider before pricing it into an offer.

Every salary in Luxembourg rises by 2.5% when the index triggers, and no employer has a say in it. It fires when the six-month moving average of the national consumer price index, the IPCN, climbs 2.5% above the threshold left by the last tranche. STATEC publishes that index every month, and once the threshold is passed the uplift reaches pay from the first day of the month that follows. It is not a pay review, it is not negotiable, and it cannot be deferred or traded against a bonus.

On the €90,000 hire in this guide, one tranche takes the gross to €92,250 and the total employer cost from €101,961 to just over €104,500, an increase of roughly €2,550 a year that no budget line anticipated. The uplift reaches salaries, pensions, social benefits, the social minimum wage and every parameter derived from it, so the contribution ceiling and the long-term care allowance shift in the same step. The figure the index is applied at, the cote d’application, has been 992.24 since June 2026.

For a business planning from outside Luxembourg, the answer is a contingency rather than a date. Forecasts of the next tranche circulate, but the trigger depends on inflation data that has not been published yet, so a percentage held back in the salary budget is more useful than a diary entry. Offer letters should also say how pay moves: a candidate reading “salary reviewed annually” may reasonably expect a review on top of the index, and the difference is worth settling in writing. Our note on Luxembourg wage indexation sets out the mechanism and the recent tranches.

Indexation is also the reason the total cost question is best answered with a dated figure. Every euro amount in this guide is correct on the parameters in force from 1 June 2026 and will be restated when the index next moves. If you are weighing the running cost of a provider against forming an entity, we compare an EOR against a company of your own on the same basis.

The Luxembourg minimum wage in 2026 is €2,771.33 gross a month for an unskilled adult and €3,325.59 for a skilled adult, with hourly equivalents of €16.0192 and €19.2231. Both rates took effect on 1 June 2026 and are the rates in force as this is written. The statutory name is the salaire social minimum, usually shortened to SSM, and it is fixed in law rather than negotiated sector by sector.

Two lower rates apply to young workers. A worker aged 17 but under 18 is entitled to 80% of the unskilled adult rate, which is €2,217.06 a month, and a worker aged 15 but under 17 is entitled to 75%, which is €2,078.49. The skilled rate is not available to workers under 18.

Pay in Luxembourg is calculated over twelve monthly salaries, so the unskilled adult SSM annualises to €33,255.96 gross and the skilled rate to €39,907.08. There is no statutory thirteenth month. A thirteenth payment becomes an enforceable right only if the contract, a collective agreement or a settled practice known as usage constant creates one, so an offer letter should say plainly which of those applies.

The floor attaches to the employment, not to the employee’s address. Someone employed under Luxembourg law who lives in Arlon, Thionville or Trier is entitled to the same SSM as a resident, because the applicable labour law follows the place of work. That matters when a foreign employer is benchmarking a salary against local pay in the home country of a cross-border hire.

The monthly SSM assumes full-time work of 40 hours a week, and the hourly rate is the monthly rate divided by 173. That single divisor is what reconciles the published figures: €2,771.33 divided by 173 gives €16.0192, and €3,325.59 divided by 173 gives €19.2231. The 173 hours represent an average month at 40 hours a week across the year, and Luxembourg uses the same number wherever a monthly salary has to be converted into an hourly one.

For part-time and hourly-paid work, the hourly rate is the operative figure. A person working 20 hours a week cannot be paid less than €16.0192 an hour if they are unskilled, and the monthly figure simply falls in proportion to the contracted hours.

The same divisor governs overtime. Luxembourg compensates overtime in time off by default, at one hour and thirty minutes of rest for each overtime hour worked, and cash payment is reserved for cases where time off is not possible. Where cash is paid, the rate is at least 140% of the hourly wage, which is the monthly salary divided by 173 plus a 40% premium. Employers also need prior clearance from the Inspection du travail et des mines (ITM) before running overtime, so it is not a quiet way of topping up a low base.

Employer social security sits on top of every one of those figures. A standard commercial employer pays around 13.29% of gross, which turns the unskilled adult SSM into roughly €3,139.64 a month of employer cost and the skilled rate into roughly €3,767.56. Those figures assume a commercial employer at the neutral accident factor and the Mutualité class a new employer starts in, with no meal vouchers, pension or other benefit included. The full picture for higher salaries is in our note on the cost of hiring in Luxembourg.

The 20% uplift to €3,325.59 attaches to a legal classification, qualifié, and not to what a role is called in the organisation chart. Writing “senior” or “specialist” into a job title does not create the entitlement, and leaving those words out does not avoid it. The classification rests on a recognised qualification or on relevant practical experience, and the precise criteria should be checked against the specific role before the salary is fixed rather than assumed from the job description.

The gap between the two adult rates is €554.26 a month, or €6,651.12 a year before employer contributions, so misreading it is not a rounding error. A shortfall against the correct floor is arrears the employer owes, and it is the kind of point that surfaces later, when someone leaves and their pay history is reviewed.

In practice the classification rarely bites on well-paid roles, because an engineer or a fund accountant is paid far above either floor. It bites on support, hospitality, logistics, retail and entry-level administrative roles, where the offered salary sits within a few hundred euros of the unskilled rate and a later reclassification would push it above the skilled one. Those are the roles worth checking twice.

The SSM is index-linked, so it changes whenever an index tranche triggers rather than on a set date each year. Luxembourg operates the indexation automatique des salaires, also called the échelle mobile des salaires: when the six-month moving average of the national consumer price index rises 2.5% above the threshold set at the previous tranche, all salaries, wages, pensions and social benefits rise by 2.5% from the first day of the following month. The SSM rises with them, because it is one of the parameters the index carries.

STATEC administers the mechanism and publishes the index and its effect on the sliding wage scale every month. There is no employer discretion in it, no negotiation, and no opt-out. The uplift applies across the board to every employee in the country on the date it takes effect, whatever their salary and whatever their contract says.

The rates in this article exist because of the tranche of 1 June 2026, which took the cote d’application from 968.04 to 992.24. Seven tranches triggered between October 2021 and June 2026, taking the index from 834.76 to 992.24. That is a cumulative automatic uplift of about 18.9% to every Luxembourg salary in under five years, from indexation alone and before any merit increase or promotion.

Timing is the part foreign employers find hardest. A tranche arrives when inflation says it arrives, which can be a few months after the last one or more than a year later, and the date is not known in advance. Forecasts are published but they are forecasts. One narrow exception is worth knowing: for posted workers, travailleurs détachés, indexation applies to the minimum wage only and not to pay above it. We set the whole mechanism out in more detail in our guide to Luxembourg wage indexation.

Budget for an uplift you cannot date, and write the offer letter so the salary is understood as the salary at today’s index. The SSM is among the highest statutory minimum wages in Europe in cash terms, which has two consequences for a company hiring from outside: the entry-level salaries it is used to quoting will often sit below the Luxembourg floor, and the floor itself carries roughly 13.29% of employer contributions on top.

A practical approach is to hold a contingency against an index tranche rather than assume a flat payroll for the year, and to re-run the exposure each time one lands. A 2.5% tranche applies to the whole payroll and not only to the people at the floor, and it lifts employer contributions by the same proportion, because those are a percentage of gross. On a Luxembourg payroll of ten people, that is a cost increase decided by STATEC and applied by law.

Offer letters need the same discipline. The Luxembourg contract has to be in writing, in two signed originals, by the first day of work at the latest, and it carries the particulars set out at Article L.121-4 of the Code du travail. Indexation applies by law whether or not the contract mentions it, but stating that the salary is expressed at the current index saves an awkward conversation when the first tranche lands. Where the role is priced within a few hundred euros of the unskilled floor, quote the figure and the classification you are applying, so that nobody is surprised later. Employer of Record Luxembourg prepares the contract, applies the index on the date it takes effect and shows the new employer cost on the payslip run that follows.

The SSM is the unit of account for Luxembourg social security, so when it moves the contribution base moves with it on the same date. The minimum contribution base, the minimum cotisable, is the monthly unskilled SSM itself, which means contributions are calculated on at least €2,771.33 a month from 1 June 2026 even where actual pay for the period is lower.

At the other end, the plafond cotisable (the contribution ceiling) is set at five times the monthly unskilled SSM. The Centre commun de la sécurité sociale (CCSS) publishes it as €13,856.63 a month and €166,279.56 a year from 1 June 2026. The two numbers are tied together by construction: a tranche that lifts the SSM lifts the ceiling on the same day, so a senior salary above the cap sees its contribution base rise even when the salary itself is unchanged.

Most branches are floored and capped that way, including pension, healthcare in kind, cash sickness benefit, accident insurance, occupational health and the Mutualité des employeurs. The employee’s contribution dépendance is the exception, with neither a floor nor a ceiling, and an allowance of one quarter of the monthly SSM, €692.83 from 1 June 2026, deducted before the rate is applied. Employer contributions run at about 13.29% of gross for a standard commercial employer, with a range of roughly 12.5% to 15.3% by accident and Mutualité class, and the employee pays 12.95%.

The same multiples reappear across the benefits system. Maternity benefit paid by the Caisse nationale de santé (CNS) is floored at the monthly SSM and capped at five times it, and the indemnity for congé pour raisons familiales is capped at five times the SSM as well. One statutory figure therefore drives the pay floor, the contribution base and a long list of benefit calculations, which is why the June date matters well beyond the people actually earning the minimum. The monthly mechanics are covered in Luxembourg payroll explained, and our pricing page sets out what the employer side costs to run.

A Luxembourg payslip moves from gross to net in two steps. Social security contributions come off first, at 12.95% for the employee, and income tax is then withheld at source on the balance. Both are deducted and paid over by the employer, so the employee is paid net and receives a payslip setting out each line. The employer side of that, the registrations, the declarations and the payments, is the work an Employer of Record Luxembourg arrangement takes on for a business that has no company in the Grand Duchy.

Pay is calculated over twelve monthly salaries. Luxembourg has no statutory thirteenth month and sets no minimum number of annual payments beyond the monthly salary, which catches out employers used to extra pay periods written into law. A thirteenth payment becomes an enforceable right in three ways only: the employment contract provides it, a collective agreement provides it, or it has become usage constant, an established practice that is general, fixed or ascertainable in its calculation, and repeated over time. Sectoral agreements in banking and insurance do provide one, which is why a contract should say plainly which basis applies.

Two tax credits are given through the payroll rather than claimed back: for 2026 the crédit d’impôt salarié is worth up to €600 a year and the CO2 credit up to €216, both tapering to nothing at €80,000 of gross pay.

The fiche de retenue d’impôt (tax card) tells the employer how much income tax to withhold. The Administration des contributions directes (ACD) issues one for every employee, carrying the tax class, the deductions the person is entitled to and the credits to apply. Since 1 May 2021 the cards are multi-year and electronic, retrieved by the employer from the ACD through MyGuichet.lu rather than handed over on paper.

Where there is no valid card, the employer must apply the most onerous treatment: tax class 1 at a rate that cannot be lower than 33%. That is a penalty setting rather than an estimate: it lands on the employee’s net pay until the card is in place, and the overpayment only comes back through the annual assessment. Class 1 covers single people under 65 without children, class 1a single parents with child tax relief, the widowed and anyone aged 65 or over on 1 January, and class 2 couples and registered partners assessed jointly. A married non-resident sits in class 1 on Luxembourg-source income unless assessed jointly and treated as a resident taxpayer, so cross-border hires need checking individually.

The scale behind the withholding has 23 bands, from 0% on taxable income up to €13,230 to a top marginal rate of 42% above €234,870. A solidarity surcharge is then added to the tax due, at 7% for classes 1 and 1a up to €150,000 of adjusted taxable income and 9% above that. The scale was not adjusted for indexation in 2026 and moves only when Parliament legislates an adaptation, while salaries move with the index automatically, so over time more of a given salary sits in the higher bands.

How often the withholding is declared depends on its size: monthly where it reaches €750 or more, by the 10th of the following month; quarterly between €75 and €749, by the 10th of the month after the quarter ends; annually below €75. Returns go in electronically through MyGuichet, an agent may file for the employer, and an employer with nothing to withhold still files a nil return. The employer also keeps a salary account for each employee and issues a certificat de rémunération showing pay and tax withheld.

Social security costs the employee 12.95% of gross pay and a standard commercial employer around 13.29%, and the CCSS collects both sides together. The employee’s 12.95% is made up of 8.50% pension, 2.80% healthcare in kind, 0.25% cash sickness benefit and 1.40% contribution dépendance, the long-term care contribution.

The employer pays into the same branches apart from the dependency contribution, which is charged to the employee alone, and adds two more: occupational health cover and the Mutualité des employeurs, the employers’ mutual that reimburses continued pay while an employee is off sick. Accident insurance is the variable line, charged on a base rate multiplied by a bonus-malus factor that the Association d’assurance accident sets from the employer’s own claims record. Across those variables the employer total runs from about 12.5% to 15.3%. The 13.29% figure is the typical commercial case, at a neutral accident factor and the Mutualité class every new employer starts in, so treat it as an illustration.

Pension is the largest single line on both sides, and it rose this year. The global pension contribution went from 24% to 25.5% on 1 January 2026, financed in equal thirds by the employee, the employer and the State. That puts 8.50% on each payroll side and 17% on the payroll as a whole, up from 16%, and the 25.5% level is set to hold from 2026 to 2032.

Most Luxembourg contributions 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. It is set at five times the monthly salaire social minimum (SSM) for an unqualified worker aged 18 and over, so it moves whenever the wage index moves. Pension, healthcare in kind, cash sickness benefit, accident insurance, occupational health and the Mutualité des employeurs are all capped at it, and the same base carries a floor: contributions are calculated on at least the monthly SSM, €2,771.33 from 1 June 2026.

The exception is the contribution dépendance, and it is the line foreign payroll teams miss most often. It is charged at 1.40%, paid by the employee alone, and the CCSS applies neither the floor nor the ceiling to it. What it does carry is an allowance: one quarter of the monthly SSM, €692.83 a month from 1 June 2026, is deducted before the 1.40% is applied, prorated for anyone working under 150 hours a month.

The effect at senior salaries is worth knowing before an offer goes out. Once pay passes the ceiling the capped branches stop growing, so a rise above €166,279.56 a year adds no further employer social security cost and costs the employee 1.40% on the extra. Income tax keeps climbing through the bands, which is where the weight of a senior package sits.

The employer makes one monthly declaration to the CCSS and settles one invoice in return. Luxembourg centralises collection: the CCSS registers employers and employees and then calculates and collects every social security contribution, for the Caisse nationale de santé, the pension fund, the accident insurance association, the Mutualité des employeurs and occupational health.

The monthly declaration reports, for each employee, the gross remuneration paid and the exact number of hours actually worked, filed electronically. Registrations sit alongside it. A new employee is declared by déclaration d’entrée within eight days of the start date; past a thirty-day tolerance the fine is €50 for each month of delay, capped at €2,500. A business employing in Luxembourg for the first time registers itself within the same eight days and is then affiliated automatically to the accident insurance association, the Mutualité des employeurs and an occupational health service.

The CCSS then issues an extrait de compte, a single statement showing the employee and employer shares together. Payment is due within ten days of the date the statement is issued, whether or not the employer disputes what is on it. Late payment carries interest of 0.6% for each full calendar month, and after four unpaid statements the CCSS starts forced recovery. Direct debit can be authorised, which is how most employers handle a bill that changes monthly. Running that cycle is part of what our Luxembourg employment services cover.

Every salary in Luxembourg rises by 2.5% when the index triggers, and no employer has any discretion over it. The trigger is the six-month moving average of the national consumer price index rising 2.5% above the previous threshold. STATEC publishes the index monthly and the Consumer Price Commission confirms the result, after which the uplift applies to pay from the first day of the following month.

The uplift reaches salaries, wages, pensions and social benefits, including the SSM and every parameter derived from it, so the contribution ceiling and the dependency allowance shift in the same step. Seven tranches triggered in the five years to September 2026, taking the cote d’application from 834.76 to 992.24, where it has stood since 1 June 2026. That is a cumulative automatic increase of roughly 18.9% in payroll cost, before anything agreed at a pay review.

For a business budgeting from outside Luxembourg, the practical point is that a 2.5% rise can land mid-year with about a month’s notice and cannot be traded away in a negotiation. Published forecasts exist, but a contingency in the salary budget is safer than a date in the diary. The tranche history is set out in our guide to Luxembourg wage indexation.

On a gross salary of €90,000 a year the total employer cost is €101,961 and the employee takes home €58,759.86, which is €4,896.65 a month over twelve months. The assumptions, in full: a single employee in tax class 1, resident in Luxembourg, no dependants, no bonus, no benefit in kind and no supplementary pension, standard deductions only, social security parameters in force from 1 June 2026, accident insurance at the neutral bonus-malus factor and the Mutualité class every new employer starts in.

The employer side is the simpler half. Contributions at 13.29% of €90,000 come to €11,961, and added to the salary that gives €101,961. The salary sits below the annual contribution ceiling of €166,279.56, so the capped branches apply to all of it.

On the employee side, social security takes €11,538.60: 11.55% on the full €90,000 for the capped branches, plus the 1.40% dependency contribution on €90,000 less twelve monthly allowances of €692.83. Income tax, including the 7% solidarity surcharge, comes to €19,701.54, and neither payroll tax credit applies at this salary because both taper out at €80,000. Gross less both deductions leaves €58,759.86 for the year.

Set against that, having someone else run the payroll is a flat fee from €499 per employee per month, €5,988 a year, which does not move with the salary. The employer contributions are identical whether the payroll runs through a company of your own or through an EOR, because the rates are fixed by Luxembourg law. The same salary is broken down further in our note on the cost of hiring in Luxembourg, and fees are on the pricing page.

Decide the status first, because in Luxembourg a judge decides it on the facts and not on the heading of the document. Article L.121-1 of the Code du travail builds an employment contract from three elements: work performed, remuneration paid, and a lien de subordination, the bond of subordination between the parties. The third element is the one that decides cases.

Subordination describes a person working to another party’s directions without independence in how the task is carried out. Luxembourg courts weigh a bundle of indicators: who gives instructions, who supervises, who can impose a sanction; whether the person sits inside an organised service with set hours and a set place; and who carries the economic risk. Exclusivity and non-compete clauses in a services agreement point the same way. Invoices and a self-employed registration do not settle it, and neither does the parties’ stated intention.

Where a relationship is reclassified, the Code du travail applies to it retrospectively, bringing wages, paid leave, overtime pay and the termination rules with it. Only the employee can ask the Tribunal du travail to reclassify. Undeclared work carries a separate penalty of €251 to €5,000 on a first offence. The test and its consequences are set out in our note on misclassification in Luxembourg.

The working rule for a foreign employer: if you want to say how, when and where the work happens, you are hiring an employee.

Luxembourg sets a national wage floor and then moves pay above it by law, so an offer needs a number and a rule. The salaire social minimum (SSM, the social minimum wage) is €2,771.33 a month gross for an unskilled adult worker and €3,325.59 for a skilled one, both in force since 1 June 2026, on a full-time 40-hour week. Skilled status is a legal classification resting on recognised qualification or experience rather than on the job title you choose, so confirm it before promising the higher rate.

Above the floor, pay is a market question. Luxembourg pays twelve monthly salaries. A thirteenth month is not statutory: it becomes an enforceable right only through the contract, a collective agreement or a settled practice known as usage constant, so the offer should say which of those, if any, you mean.

The feature foreign employers underestimate is indexation. When the six-month moving average of the national consumer price index rises 2.5% above the previous threshold, every salary in the country rises by 2.5% from the first of the following month. STATEC tracks the index month by month, and when a tranche lands the rise applies across the board without anyone negotiating it. Seven tranches arrived between October 2021 and June 2026, a cumulative uplift of about 18.9%. The figure in force since 1 June 2026 is a cote d’application of 992.24.

So a Luxembourg offer should quote the salary together with the index figure it is calculated at. Article L.121-4 of the Code du travail asks for the basic salary and the index cote in force in the contract, with supplements and bonuses listed separately. A candidate reading “€65,000 at index 992.24” can see how the figure behaves; one reading “€65,000” cannot.

Two checks belong in the first conversation: whether the candidate needs permission to work in Luxembourg, and whether they will live there at all. Nationals of the EU, the EEA and Switzerland need no work permit and no residence permit, but they still register with their commune, filing a déclaration d’arrivée within eight days of arriving and a registration declaration within three months.

A third-country national follows the salaried worker route, which is long enough to move a start date. The employer declares the vacant post to ADEM before advertising it anywhere, then requests the certificate that allows recruitment of a third-country national: five working days for shortage occupations with no labour market test, longer where ADEM must look for registered jobseekers first. The candidate then applies for an autorisation de séjour temporaire before travelling, answered by the Ministère des Affaires intérieures in up to four months, then a visa where the nationality requires one, a declaration of arrival within three days, a medical check, and an €80 residence permit application. Four to seven months end to end is realistic.

The EU Blue Card is the quicker route for a highly qualified hire: gross annual pay of at least €65,652 in 2026, a contract of at least six months, no labour market test, and an authorisation decision within three months. Both routes are covered in our guide to hiring non-EU workers in Luxembourg.

Many people employed in Luxembourg do not live there. A large share of the workforce commutes in from Belgium, France and Germany, and under Regulation 883/2004 someone who works only in Luxembourg is insured in Luxembourg. Home working moves both pictures. Each of the three treaties tolerates 34 days a year worked outside Luxembourg before those days become taxable in the country of residence, and once that is passed every outside day is taxed there from the first one. Social security stays in Luxembourg while telework from home remains under 50%, though from 25% upwards a declaration to the CCSS is needed to keep it there.

The contract must be in writing, in two signed originals, at the latest at the moment the employee enters service: one original for each side, with no grace period after day one. Article L.121-4 of the Code du travail lists what the document carries: the parties and their addresses, the start date, the place of work, the job title, category and tasks, working time, overtime and the work schedule, the remuneration with the index cote in force and any supplements shown separately, paid leave, the notice periods, any probation period and its terms, the collective agreement where one applies, the bodies collecting social security contributions, and the training entitlement. Several of those may be met by reference to the applicable law rather than reproduced in full.

Language is a question of comprehension rather than a prescribed list. The Inspection du travail et des mines accepts a contract in any language both parties understand, so an English contract is valid where the employee genuinely reads English. A contract in a language the employee does not follow is exposed to annulment for defect of consent. The administration is separate: the CCSS publishes its declarations only in French and German.

Most hires are a contrat à durée indéterminée (CDI, the open-ended form). A contrat à durée déterminée (CDD, the fixed-term form) is available only for a precise and non-durable task and runs to 24 months at most, renewals and probation included. Our guide to Luxembourg employment contracts covers both.

Probation is optional, agreed in writing by the first day, and cannot be renewed. It runs from two weeks to three months below CATP/DAP qualification level, six months at or above it, and twelve months where the contracted gross monthly salary reaches €5,318.41 at the current index. Neither side may terminate during the first two weeks except for faute grave. After that, notice on a probation set in months is four days per month agreed, with a floor of fifteen days and a ceiling of one month.

Two registrations follow signature: the employee is declared to the social security authorities and the tax card comes from the tax authority. The déclaration d’entrée, the entry declaration, reaches the Centre commun de la sécurité sociale (CCSS) within eight days of the start date, filed through MyGuichet.lu, the SECUline channel or on paper. Beyond a thirty-day tolerance, late filing costs €50 per month of delay, capped at €2,500. A business employing in Luxembourg for the first time also files a déclaration d’exploitation within eight days of that first start date, which affiliates it to accident insurance, the Mutualité des employeurs and an occupational health service, and produces the employer reference number the CCSS uses thereafter.

The fiche de retenue d’impôt (tax card) is issued by the Administration des contributions directes (ACD) and carries the employee’s tax class, deductions and tax credits. It has been a multi-year electronic document since 2021, retrieved by the employer through the professional space on MyGuichet.lu, and since 1 January 2022 the employee no longer hands over a paper card. Ask for it as soon as the start date is fixed: without a card the withholding defaults to tax class 1 at a minimum rate of 33%, which means a poor first payslip and a correction the following month.

Non-residents run through the same two filings. A frontalier resident in Belgium, France or Germany is declared to the CCSS in the same way and receives a non-resident tax card, normally in tax class 1.

The first payroll is where the contract, the tax card and the CCSS registration meet. Where an EOR runs the hire, these steps are sequenced for you, as the five-step EOR process sets out. Employer social security is around 13.29% of gross for a standard commercial employer, ranging from roughly 12.5% to 15.3% by accident class and Mutualité class, and the employee pays 12.95%. Most branches stop at the plafond cotisable (the contribution ceiling) of €13,856.63 a month from 1 June 2026. Income tax is withheld at source across 23 bands to a top rate of 42% above €234,870, plus a 7% solidarity surcharge. The monthly salary declaration goes back to the CCSS within ten days, and the contribution bill is paid within ten days of its issue date. Our guide to Luxembourg payroll follows the cycle month by month.

Before the first day, have these in place:

• The contract signed in two originals, with the salary, the index cote and any probation
• The employee’s identification details, address and bank account
• Proof of the right to work where the candidate is not an EU, EEA or Swiss national
• The country of residence, and an agreed number of home-working days for a commuter
• The entry declaration ready to file within eight days of the start date
• The tax card requested, so the first payslip is not run on the default rate
• Any benefits settled, such as meal vouchers at €15 face value

Timing turns on the permit question. For a candidate who already has the right to work in Luxembourg, a hire is a matter of days: through Employer of Record Luxembourg a draft contract is usually ready within hours of the salary and start date being agreed, and onboarding typically takes one to two days for EU nationals. Forming a company of your own puts a business permit and, in practice, eight to fourteen weeks in front of the same first payslip.

There are two ways to put someone on a Luxembourg payroll: employ them through an Employer of Record, or form a Luxembourg company and become the employer yourself. Both produce a Luxembourg employment contract, Luxembourg social security cover and a Luxembourg payslip. What differs is who carries the entity, the capital, the monthly filings and the years of obligations that follow.

Under the first route the EOR is the legal employer of the person you have chosen, which is the model we set out in what an Employer of Record in Luxembourg is. The contract is with the EOR, the employee is declared to the Centre commun de la sécurité sociale (CCSS), payroll runs through the EOR, and you keep the commercial side: the role, the salary, the direction of the work and the decision to continue it. Employer of Record Luxembourg is registered to employ in Luxembourg, which is what allows a contract to be issued and a first payroll to run in days rather than months.

Under the second route everything sits inside a structure you own and fund. For a foreign business the realistic form is the société à responsabilité limitée (SARL), which carries €12,000 of minimum share capital. The cheaper SARL-S, with capital from €1, is reserved to individual shareholders, so a UK, US or German parent company has no route into it. A société anonyme at €30,000 of capital is the other option, usually where an investor-facing structure is wanted.

Forming a SARL is a fixed sequence of steps that typically takes eight to fourteen weeks before a first legal payroll can run. The order matters, because the business permit comes before registration at the Registre de commerce et des sociétés (RCS) wherever the activity is regulated.

The autorisation d’établissement (business permit) usually sets the pace. It is applied for at the Ministère de l’Économie, costs €50 in droits de chancellerie, and the file is in principle processed within three months of arriving complete. That three-month figure is a published target rather than an average, and it runs from the day the file is complete, which is the part applicants tend to underestimate.

The rest of the sequence is more predictable. A name availability certificate costs €4.75 electronically. The €12,000 of capital is subscribed at incorporation, and under the law of 18 May 2026 the cash portion may now be paid up within twelve months afterwards instead of before, which removes the old wait for a Luxembourg bank account and a blocking certificate. The money is still owed; it is owed later. The statutes are signed before a notary and carry a fixed registration duty of €75, and the company is then filed at the RCS for €123.92 including VAT, plus €12 per document and a €5 administrative charge. VAT registration follows within fifteen days of the activity starting, and both the CCSS employer registration and the employee’s déclaration d’entrée fall due within eight days of the start date.

State fees across the whole sequence come to roughly €270, which is the one hard number in the exercise. Everything else is quoted rather than published. Notary fees for a SARL incorporation follow the Chambre des Notaires scale but no figure is published, and the working estimate for 2026 is €1,200 to €3,000. Timings behave the same way: around six weeks where the file is clean and the permit moves quickly, four to six months where the permit raises queries or bank checks on a non-EU parent take time. No Luxembourg authority publishes an average, so treat every range here as an estimate rather than a promise.

A SARL costs roughly €3,300 to €17,000 in year one outside the share capital and outside salary, against €5,988 for twelve months of EOR fees at €499 per employee per month. Those ranges overlap, and the honest reading is that at a single employee a lean company of your own, at the bottom of that range, can come out cheaper over a year than an EOR. A provider who argues the EOR case on cost alone at one head is overstating it.

The range is wide because most of it is quoted rather than fixed. State fees are about €270 and are confirmed. Notary fees run €1,200 to €3,000. A registered office costs nothing if you already have premises and up to around €6,000 a year if you do not. Bookkeeping with annual accounts, eCDF validation and the tax returns runs roughly €1,500 to €4,500, payroll administration for one employee adds €300 to €1,200, and formation advice reaches €2,000 where it is taken. Those are market estimates from Luxembourg providers, not official tariffs, so get written quotes before you budget on them.

What does not change between the routes is the cost of the employment itself. Employer social security is around 13.29% of gross for a standard commercial employer, the employee pays 12.95%, and both are set by Luxembourg law rather than by who the employer happens to be. On a gross salary of €90,000 the total employer cost is €101,961 either way. The arithmetic behind that figure is in our guide to the cost of hiring in Luxembourg.

Headcount then pulls the two curves apart. A fee of €5,988 a year is charged per employee and rises in a straight line, while the fixed part of running a company hardly moves: the accounts, the returns and the registered office cost much the same for five employees as for one. Current fee levels are on our pricing page.

A Luxembourg company files every month and every year for as long as it exists, and those duties do not pause when headcount does. This is the part of the decision that gets costed least often and lasts longest.

Monthly, an employing company sends the salary declaration and pays social contributions to the CCSS, and declares and pays wage withholding tax to the Administration des contributions directes (ACD), at a frequency set by the amount withheld. VAT returns are monthly, quarterly or annual depending on turnover.

Annually, the accounts have to be approved within six months of the financial year end, validated on eCDF, the State platform for financial data, in the standardised Luxembourg chart of accounts, and filed at the RCS within one month of approval, so within seven months of year end at the latest. Filing on time costs €19 excluding VAT. Filing late costs €50 in the eighth month after year end, €200 from the ninth to the eleventh and €500 from the twelfth. The company also files corporate income tax, municipal business tax and net wealth tax returns. Corporate income tax is 14% up to €175,000 of taxable income and 16% above €200,000, with a 7% employment fund surcharge on the tax due, and municipal business tax in Luxembourg City is 6.75%, giving a combined effective rate of about 23.87% in 2026. A small employing company with a modest balance sheet normally pays the €535 minimum net wealth tax.

That last point is the compliance tail. A Luxembourg company keeps filing accounts and returns until it is wound up, and winding it up is itself a notarised and filed procedure with its own cost. An EOR engagement stops when the employment stops.

Four arguments for an EOR in Luxembourg hold up under scrutiny: speed, no dependency on a business permit, no capital tied up, and no compliance tail. Cost is not one of them at a single employee, and we would rather say so here than have you work it out from an accountant’s quote later.

Speed is the most concrete of the four. A Luxembourg contract is usually ready within hours of the salary and start date being agreed, onboarding typically takes one to two days for EU nationals once the employee’s details are in, and the déclaration d’entrée reaches the CCSS within eight days of the start date. Set against eight to fourteen weeks for a company, that is often the difference between a candidate starting next month and a candidate accepting another offer.

The permit point matters because it sits outside your control. A business permit is granted on a file that the Ministère de l’Économie assesses against a three-month target, and no later step in the sequence can start until it is granted. Employing through an EOR takes that dependency out of your plan, because no Luxembourg company is being formed. The capital point is smaller than it first looks, since the €12,000 is the company’s own money and may now be paid up within twelve months, but it is still €12,000 committed to a structure you may not want in three years.

The compliance tail is the quiet one. An EOR arrangement ends when the employment ends: no accounts to file for the years afterwards, no returns, no liquidation. Against that, an EOR adds a party between you and the employee, so the working relationship has to be documented properly and the fee is permanent while the employment lasts. Our EOR services in Luxembourg page sets out what the monthly fee covers.

Your own Luxembourg entity starts to make sense once Luxembourg is a permanent part of the business rather than one hire. The usual trigger is a combination rather than a single number: several employees you expect to keep for years, a reason for the company to exist beyond employment such as invoicing, contracting or holding a licence locally, and a finance function with room to absorb the monthly and annual filings.

Headcount moves the arithmetic in both directions. Fees are charged per employee, so five people at €499 a month come to €29,940 a year while the fixed running costs of a company barely change. Headcount also brings statutory structure with it: an employer with fifteen employees must have a délégation du personnel (staff delegation) elected, and an employer with 150 or more must hold an entretien préalable before dismissing anyone. Those are commitments to a permanent employing structure rather than administrative chores.

Plenty of companies use both routes in sequence. They hire the first one or two people through an EOR while the SARL is formed, then transfer them across once the company can pay them. That protects the candidate and the start date while the permit, the notary and the bank run their course, and it means the entity decision is taken on the strength of the business in Luxembourg rather than under time pressure from a signed offer. The practical steps for either route are in our guide to hiring an employee in Luxembourg.

Ask which legal entity will be named as the employer on the contract, the payslip and the social security declaration, and get the answer in writing. In Luxembourg the employment contract is a written document made out in two signed originals, in place by the first day of work at the latest, carrying the particulars listed at Article L.121-4 of the Code du travail. The party that signs as employer is the party a Tribunal du travail will look at years later, so vagueness here is expensive.

Providers answer in two ways. Some employ the person directly. Others take your instruction and pass the employment to a local company you never meet, which adds a margin and a handover step to every question you ask afterwards. Neither is concealed if you ask plainly: does your organisation issue the contract and file the déclaration d’entrée to the Centre commun de la sécurité sociale (CCSS) within eight days of the start date, or does someone else? Employer of Record Luxembourg is registered to employ in Luxembourg, and the employment contract is with us.

Ask for a redacted specimen contract during the sales process. You are testing whether the provider drafts to Luxembourg requirements or adapts a template from elsewhere, since the probation clause, intellectual property and any non-compete follow rules a generic template misses.

Language has a clear answer. Luxembourg imposes no compulsory language on the contract; the test is that the employee genuinely understands it, so English is accepted where both sides read English. The administration is different, since CCSS and tax filings are made in French or German. Ask who handles that correspondence.

Ask how index tranches reach payroll and when you are told. Luxembourg salaries are index-linked by law: 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. STATEC publishes the index monthly and no employer has any discretion over the uplift.

This is the feature that surprises foreign buyers most, because payroll cost rises without a pay review. The cote d’application has stood at 992.24 since 1 June 2026, and seven tranches landed in the five years to that date, a cumulative automatic uplift of about 18.9%. A provider that runs Luxembourg payroll regularly tells you the effective date, the new gross salary and the revised employer cost before the pay run closes rather than after it. Our explainer on how Luxembourg wage indexation works sets out the mechanism in full.

Three follow-up questions are worth asking. Does the uplift reach every index-linked element of the package or only base salary? How is it shown on the payslip and the invoice, so finance can see why the number changed? And does the fee move with the salary? A flat fee per employee per month does not, while a percentage of gross rises with every tranche and every pay rise you award.

Ask how sick pay is funded, who receives the refund and how it reaches you. The employer continues to pay 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 is roughly 11 to 15 weeks in practice. From the month after that 77th day the Caisse nationale de santé (CNS) pays the employee directly.

The part that changes the arithmetic is the refund. The Mutualité des employeurs reimburses the employer 80% of the payroll charge, gross salary plus employer contributions, and 100% where the incapacity falls in the trial period. Because an EOR is the legal employer, that refund is paid to the EOR, not to you. Ask whether it is credited to your account in full, when, and how it is labelled on the invoice. The reimbursement arrives later than the pay run it relates to, so charge and credit rarely appear in the same month, and a provider that cannot explain the lag is probably not tracking it.

Ask about the paperwork behind the money. The employee must notify absence on the first day and get a medical certificate to the employer by the third day, and missing those deadlines costs the employee the protection against dismissal that otherwise runs up to 26 weeks from the onset of incapacity. Ask who chases the certificate and how you hear an absence has started. the Luxembourg sick leave rules are covered separately in more detail.

Ask who pays if a dismissal is challenged, and what insurance stands behind the answer. An employee has three months to bring an unfair dismissal claim before the Tribunal du travail, and the named defendant is the employer, which in an EOR arrangement is the provider. That does not settle who bears the cost, because the services agreement decides that, and the two are often confused in a sales conversation.

Most Luxembourg risk on termination is procedural. Notice runs two months under five years of service, four from five to ten and six beyond ten, and it starts on the 15th if the letter is posted before the 15th, or on the 1st of the next month if posted on or after it, with the postmark governing. Severance, the indemnité de départ, begins at one month’s pay at five years of service. An employee may request written reasons within a month and the employer must reply within a month by registered letter; failure makes the dismissal automatically abusive whatever the facts.

So put the questions in this order. Who drafts and posts the letter, against which deadline? Who answers a request for written reasons? Who instructs Luxembourg counsel, pays for the defence, and funds damages if a claim succeeds? Is there an indemnity in the services agreement, and is it capped? What employer’s liability and professional indemnity cover is held? Our guide to ending employment in Luxembourg sets out the timetable those answers have to fit.

Ask which data protection role the provider takes, and for which processing. An EOR that is the legal employer decides on and answers for payroll calculation, social security filings and personnel records in its own right, which is the position of a controller. For data you pass over for your own purposes it may act on your instructions as a processor. A provider that cannot separate the two in writing has never been asked.

Get the practical detail into the contract rather than into an email. Where does the payroll system hold the data, and does any support or processing happen outside the EEA? If it does, what transfer mechanism applies? Which sub-processors are involved, and do you get notice before that list changes? Who answers the employee if they exercise their access or erasure rights?

Retention and breach handling are the points buyers skip. Ask how long personnel and payroll records are kept after the employment ends and which obligation sets that period, since an employer holds documents for tax and social security reasons long after the person has left. Ask who notifies whom after a breach, and whether the provider notifies the supervisory authority itself.

Ask for names, time limits and a route above the named person. Two contacts matter: yours, for invoicing, contract changes and costs, and the employee’s, for payslips, leave and sickness. Ask what response time is committed to, what the monthly cut-off is for payroll changes, and who covers during holidays. A named contact who works on Luxembourg every day is worth more than a ticket queue with a service level attached.

Then ask what happens when something goes wrong. If a payslip is miscalculated or a declaration filed late, how quickly is a corrected payslip issued, who tells the employee, and who absorbs any interest or penalty? Ask for the escalation path in writing: the person above the account manager, and how long each step may take.

Offboarding is the part almost nobody tests before signing, and it is where a weak provider shows. Ask what happens in the final month: the exit declaration to the CCSS, the last payslip with untaken leave paid out, the certificate of employment, notice served on the correct date under the rule of the 15th, and severance where service requires it. Ask how much notice you owe the provider, whether the fee runs through the employee’s notice period, and what happens if you later form a company of your own and want to move the employee onto it.

Ask for a written breakdown for your actual salary, with three lines kept apart: gross salary, statutory employer costs and the fee. Our fee starts at €499 per employee per month, €5,988 a year, charged flat rather than as a percentage of pay, and the pricing page shows what is included. A single blended number is the thing to push back on, because it hides which part of the price is fixed by law and which part is margin.

The statutory part is the same whoever employs the person. On €90,000 gross, employer contributions at 13.29% come to €11,961, for a total employer cost of €101,961; at €60,000 gross the same rate produces €67,974. Those figures assume a standard commercial employer, the neutral accident bonus-malus factor and the Mutualité class a new employer starts in, with most branches stopping at the plafond cotisable of €13,856.63 a month from 1 June 2026. A provider marking up the statutory element should be asked to justify it.

Ask what sits outside the fee. Benefits usually do: chèques-repas at a face value of up to €15, with an exempt employer share of €12.20; a régime complémentaire de pension, on which the employer pays a 20% flat withholding tax. So do work authorisations for non-EU nationals, recruitment and equipment. Ask whether each is passed through at cost.

One warning is worth more than the rest. Be careful with a provider that quotes a list price in dollars against a cost base that is entirely in euros. Salary, contributions and every index tranche arise in euros, so a dollar headline turns a fixed cost into a moving one and shifts the exchange risk to you. Ask which rate is used, when it is fixed, and whether the fee can be invoiced in euros.