Employment Contracts in Luxembourg

Employment Contracts in Luxembourg establish the legal and practical framework of the employer-employee relationship. For international companies, the contract should do more than identify a job title and salary: it needs to reflect how the employee will actually work and align with Luxembourg rules on remuneration, working time, leave, probation and termination.

For a lasting role forming part of the employer’s normal business activity, the standard employment structure is generally a permanent contract — contrat à durée indéterminée (CDI). Fixed-term contracts — contrats à durée déterminée (CDD) — are intended for specific temporary needs and are subject to additional restrictions.

International employers should review the contractual structure before the employee starts work. Correcting salary, probation, working-time or work-location clauses after onboarding can be significantly more difficult than addressing them when the offer is prepared.

Companies planning to Hire Employees in Luxembourg should therefore coordinate the employment contract with payroll, benefits and workforce planning from the beginning.

Where the company does not have its own Luxembourg legal entity, an Employer of Record in Luxembourg can provide the local employment structure and issue employment documentation through the EOR arrangement.

Are Written Employment Contracts Required in Luxembourg?

Luxembourg’s official guidance provides that employment contracts should be drawn up no later than when the employee starts work and prepared in two copies, one for each party.

However, Luxembourg law can still recognise an oral employment relationship. Importantly, an oral contract is treated as an employment relationship of indefinite duration rather than allowing the employer to rely on a fixed-term arrangement that was never properly documented.

From an employer perspective, relying on an oral agreement is therefore a poor risk-management strategy.

A written contract gives both parties a clear record of:

• the employee’s role;
• salary;
• working hours;
• work location;
• benefits;
• leave;
• probation;
• notice;
• any applicable collective agreement.

It also provides HR and payroll teams with a reliable reference point when administering the employment relationship.

For international companies managing Luxembourg employees from another country, this documentation becomes particularly important because local HR terms may differ from global company policies.

Mandatory Information in Employment Contracts in Luxembourg

A Luxembourg employment contract should contain a clear set of mandatory details covering the employer, employee and practical conditions of work.

The purpose is to ensure that the written contract matches the actual employment relationship and gives both parties a reliable reference point for payroll, HR administration and termination.

Key information should include:

• identity of the employer and employee;
• employment start date;
• place of work;
• indication of multiple work locations where relevant;
• job title and description of duties;
• daily or weekly working time;
• normal working schedule;
• basic salary;
• variable remuneration, bonuses or profit-sharing where applicable;
• frequency of salary payment;
• annual leave entitlement or the method used to calculate it;
• applicable notice periods;
• probation period where agreed;
• applicable collective agreement;
• supplementary pension arrangements where relevant;
• other contractual clauses affecting the employment relationship.

The place-of-work clause should be drafted carefully. If the employee is expected to work at several locations, travel regularly or follow a hybrid arrangement, the contract should reflect this rather than identifying one fixed office that does not correspond with reality.

This is particularly relevant in Luxembourg because many employees live in France, Belgium or Germany. If an employee regularly works from home across the border, the arrangement should be documented and reviewed from a payroll, tax and social security perspective.

Working time should also be specific.

A contract stating 40 hours per week should be consistent with:

• the employee’s actual schedule;
• time-recording systems;
• overtime rules;
• flexible-working arrangements;
• payroll records.

For part-time employees, simply stating the total number of weekly hours may not be sufficient. The contract should also describe how those hours are distributed across the working week and what flexibility applies.

Remuneration clauses should clearly separate fixed and variable pay.

For example, the contract should distinguish between:

Base salary: guaranteed contractual remuneration.

Performance bonus: payment linked to defined performance conditions.

Sales commission: variable remuneration calculated under a separate commission structure.

Benefits in kind: company car, allowances or other non-cash compensation.

This distinction becomes important when calculating payroll, annual leave pay, notice and termination-related amounts.

Annual leave provisions should also be consistent with Luxembourg statutory requirements. Employees are generally entitled to at least 26 working days of paid annual leave per year, although a contract or collective agreement can provide more.

Where a probation period is included, the clause should state its duration clearly and comply with the statutory limits applicable to the employee and contract type.

Collective agreements should not be overlooked. If one applies, it can affect salary scales, working time, leave, benefits and termination conditions. The employment contract should therefore identify the applicable agreement rather than relying only on general Luxembourg employment law.

Additional clauses may also be necessary depending on the position, including:

• confidentiality;
• intellectual property;
• non-competition;
• mobility;
• remote work;
• bonus arrangements;
• company-car rules.

These clauses should be tailored to the actual role. A senior sales employee with access to key client relationships may require different contractual protections from an administrative employee.

For employers, the main compliance issue is consistency.

The employment contract, payroll system, HR records and actual working arrangement should all show the same core terms. If salary, working hours, location, role or benefits change, those changes should be documented rather than managed only through informal emails or manager approval.

A contract that accurately reflects the real employment relationship provides a stronger basis for payroll administration, performance management and any future termination process.

Permanent Employment Contracts – CDI

A contrat à durée indéterminée (CDI) is the standard employment model for an ongoing position.

Official Luxembourg guidance states that an employer recruiting an employee to meet a lasting staffing requirement connected with the normal and permanent activity of the business generally uses a permanent contract.

Typical examples could include:

• Finance Manager;
• HR Manager;
• Sales Director;
• Country Manager;
• Software Developer;
• Compliance Officer;
• Operations Manager.

A CDI does not have a predetermined end date.

Employment continues until it ends through one of the legally recognised mechanisms, such as:

• resignation;
• dismissal with notice;
• dismissal for serious misconduct;
• mutual termination;
• another applicable legal basis.

Because there is no fixed expiry date, employers should pay particular attention to probation and termination clauses when preparing the contract.

For detailed exit rules, see Termination of Employment in Luxembourg.

Fixed-Term Employment Contracts – CDD

A fixed-term employment contract (CDD) should be used for a specific and genuinely temporary employment need rather than to avoid hiring an employee permanently.

Official Luxembourg guidance describes fixed-term contracts as appropriate for employees hired for a limited period to perform a specific temporary task.

The contract needs to state why the employment is temporary.

Additional mandatory information can include:

• the precise temporary purpose of the contract;
• the contract end date;
• or the minimum duration where no exact end date can be stated;
• the name of the employee being replaced, where relevant;
• the probation period;
• a renewal clause where applicable.

If the employment documentation does not properly establish that the contract is fixed-term, Luxembourg rules can result in the relationship being treated as a permanent contract.

This makes the reason for using a CDD particularly important.

A company should not simply state “temporary contract” without identifying the genuine temporary requirement.

How Long Can a Fixed-Term Contract Last?

The general maximum duration of a CDD is 24 months, including renewals.

A fixed-term contract may generally be renewed twice, provided the total period does not exceed the 24-month limit. The renewal should either be anticipated by a clause in the original agreement or documented through an amendment signed by both parties.

For example:

Initial contract: 12 months
First renewal: 6 months
Second renewal: 6 months

Total: 24 months

This would reach the ordinary maximum.

Certain specific categories of contract have different rules, but employers should not assume an exception applies without checking it.

If a fixed-term arrangement exceeds the permitted limits, the employment relationship can be reclassified as a CDI.

Successive Fixed-Term Contracts

Employers should also be careful about repeatedly using different CDDs for the same position.

Luxembourg places restrictions on successive fixed-term arrangements.

Under the general rule, once the relevant CDD reaches its end, a waiting period corresponding to one-third of the duration of the expired contract, including renewals, can apply before the same position is filled again through another fixed-term or equivalent temporary arrangement.

For example, if the relevant CDD lasted 12 months, the waiting period could generally be:

12 ÷ 3 = 4 months

before another qualifying fixed-term arrangement is used for the same position.

This rule is designed to prevent employers from using repeated temporary contracts to cover what is effectively a permanent staffing need.

Probation Periods in Luxembourg Employment Contracts

Both permanent and fixed-term contracts can include a probation period.

The purpose is to allow the employer to evaluate the employee’s ability to perform the role while also allowing the employee to determine whether the position is suitable.

The general probation framework in 2026 is:

• minimum: 2 weeks;
• standard maximum: 6 months;
• maximum of 3 months for employees whose vocational training is below the relevant CATP qualification level;
• up to 12 months where the starting gross monthly remuneration is at least €5,318.41 at index 992.24.

The salary threshold is index-linked and should therefore be checked against the current Luxembourg index when the employment contract is prepared.

For employers, this means simply inserting a standard six- or twelve-month probation clause into every employment contract is not appropriate.

The permitted period depends on the employee’s circumstances.

Probation in Fixed-Term Contracts

Fixed-term contracts have an additional limitation.

The probation period generally cannot exceed one quarter of the duration of the CDD or of its stated minimum duration.

For example:

A 12-month CDD can generally have a probation period of no more than:

12 ÷ 4 = 3 months

A 24-month CDD could potentially support a six-month probation period, subject to the other general probation limits.

Short CDDs therefore require particular attention.

A business should not copy the probation clause used for permanent employees into a short fixed-term agreement without checking the maximum permissible duration.

Salary Clauses

Remuneration should be defined clearly in the employment contract.

The contract should state the basic salary and applicable index, together with additional financial elements where relevant. Official Luxembourg guidance specifically identifies additional compensation such as bonuses, incentives and 13th-month payments among the remuneration elements that may need to be documented.

A compensation section may therefore need to address:

• gross base salary;
• payment frequency;
• performance bonus;
• sales commission;
• 13th-month salary where offered;
• allowances;
• benefits in kind;
• profit-sharing;
• pension-related benefits.

The employer should distinguish clearly between guaranteed remuneration and variable or discretionary compensation.

For example, if an employee receives a target annual bonus of 15%, the contract or associated bonus documentation should clarify the conditions under which that bonus is earned.

Vague language can create unnecessary disputes over whether a payment is guaranteed, discretionary or performance-dependent.

Minimum Salary and Employment Contracts

Salary clauses must also respect applicable statutory and collective minimums.

As of 1 June 2026, the general social minimum wage is:

• €2,771.33 gross per month for an unqualified employee aged 18 or over;
• €3,325.59 gross per month for a qualified employee aged 18 or over.

Employers should therefore determine the correct worker classification before finalising remuneration.

For detailed rates and qualification rules, see Minimum Wage in Luxembourg.

The statutory minimum is also not necessarily the relevant commercial salary.

Companies hiring professionals in finance, technology, compliance or management may need to offer substantially more to attract suitable candidates.

Wage Indexation and Contract Drafting

Luxembourg’s wage indexation mechanism also affects salary administration.

Employment contracts should identify the applicable salary and index when the contract is signed.

When Luxembourg’s statutory wage index changes, qualifying salaries need to be adjusted through payroll accordingly.

International employers should therefore avoid interpreting the gross salary stated in the original contract as a permanently fixed nominal amount.

Payroll processes need to account for Luxembourg indexation.

Working Hours in Employment Contracts

The contract should state the employee’s daily or weekly working time and normal work schedule.

For most full-time employees, standard Working Hours in Luxembourg are generally:

8 hours per day
40 hours per week

However, employers may use other lawful arrangements, including part-time schedules and certain flexible working-time structures.

The contractual schedule should correspond with how the employee actually works.

If the employee regularly follows a materially different schedule, the employer should determine whether the employment documentation needs to be updated.

For detailed rules on overtime, rest periods and flexible working, see Working Hours in Luxembourg.

Part-Time Employment Contracts

Part-time contracts require additional detail.

Beyond the general mandatory employment-contract information, the contract should specify:

• agreed weekly working hours;
• how those hours are distributed across the days of the week;
• limits and conditions for overtime where applicable;
• conditions under which working hours can exceed the contractual daily or weekly schedule.

For example, stating only:

“20 hours per week”

may not provide enough information.

The contract should also establish how those 20 hours are distributed and what flexibility applies.

This is important because changes to the agreed distribution of part-time working hours can require mutual agreement.

Part-time employees are generally subject to the same basic employment-contract framework as full-time employees.

Place of Work

The place-of-work clause deserves particular attention in Luxembourg.

The contract should identify the employee’s place of work. If the role requires work at multiple locations or abroad rather than at one fixed location, this should be stated expressly.

A poorly drafted location clause can become problematic where employees:

• travel between offices;
• visit customers;
• work internationally;
• work from home;
• commute from another country.

This is especially relevant in Luxembourg because many employees live in neighbouring France, Belgium or Germany.

Employers should therefore distinguish between:

employee residence

and

contractual place of work.

They are not necessarily the same.

Remote and Hybrid Work Clauses

Remote working should not normally be left to informal manager approval where it forms a regular part of the employment relationship.

Luxembourg’s official guidance provides that teleworking arrangements should be based on mutual agreement between employer and employee. They may be established when the role is initially agreed or through a written amendment to the employment contract.

Telework documentation can require additional information, including:

• remote work location;
• duties and objectives;
• applicable collective classification;
• days and hours when the employee must be reachable;
• relevant department or business unit;
• reporting line;
• company contact persons;
• equipment provided;
• relevant insurance information for employer-provided equipment.

For international employers, the location clause is especially important when an employee works from another country.

A Luxembourg employee working regularly from France, Belgium or Germany can create additional tax and social security considerations.

The contractual remote-working arrangement should therefore be reviewed together with payroll and cross-border compliance.

Employment Contracts for Non-EU Employees

Where a third-country national requires authorisation before starting work, the employment contract may need to account for the immigration process.

Luxembourg’s official CDI guidance provides examples of contracts where the employment start date is made conditional on obtaining the necessary work authorisation.

For example, the agreement can provide that employment begins after the employee receives the required work permit.

This can help prevent a contractual start date from arising before the individual is legally able to begin work.

International employers should therefore coordinate recruitment, immigration and contract drafting rather than treating them as separate processes.

Annual Leave Clauses

The employment contract should state the annual leave entitlement or identify the method used to determine it.

Employees in Luxembourg generally receive at least 26 working days of statutory paid annual leave per year.

The contract may provide more.

For example:

Statutory minimum: 26 days
Company contractual entitlement: 30 days

The additional four days then form part of the contractual employment package.

Employers should ensure that employment contracts, employee handbooks and HR systems all show the same entitlement.

For accrual, carry-over, sickness and termination rules, see Annual Leave in Luxembourg.

Employee Benefits in the Contract

Benefits should be documented clearly where they form part of the agreed compensation package.

Depending on the position, these may include:

• supplementary pension contributions;
• health insurance;
• meal benefits;
• company car;
• mobility allowance;
• additional annual leave;
• bonus;
• training budget.

Where remuneration in kind is used, Luxembourg guidance states that its value should be identified precisely if it is to be deducted from salary.

Employers should therefore avoid vague clauses such as:

“Employee may receive benefits according to company policy”

where a specific benefit has actually formed part of the negotiated offer.

For broader compensation planning, see Employee Benefits in Luxembourg.

Collective Agreements

Employment contracts should identify collective agreements that govern the employee’s working conditions.

This is important because an applicable collective agreement can provide employment conditions above the general statutory baseline.

These may include more favourable rules concerning:

• salaries;
• working hours;
• leave;
• bonuses;
• night work;
• notice periods;
• benefits.

An employer should therefore check collective-agreement coverage before finalising the contract.

Complying with the general Luxembourg Labour Code does not automatically mean that every contractual term is correct if a collective agreement provides stronger employee rights.

Optional Clauses

Employers and employees can include additional provisions beyond the mandatory contract terms.

Examples recognised by Luxembourg’s Labour Inspectorate include:

• non-competition clauses;
• confidentiality or discretion clauses;
• geographic mobility clauses.

However, contractual freedom has limits.

An employment clause cannot validly reduce statutory employee rights or impose conditions that are less favourable than mandatory Luxembourg protections where the law does not permit such derogation.

This matters particularly for international contract templates.

A clause that is enforceable in another jurisdiction should not automatically be inserted into a Luxembourg agreement.

Confidentiality Clauses

Confidentiality clauses are particularly relevant for employees who have access to:

• commercial information;
• customer data;
• financial information;
• technology;
• pricing;
• business strategy;
• intellectual property.

The clause should identify the type of information the employee is expected to protect without being so broad that the employee cannot realistically understand their obligations.

For executives and senior specialists, confidentiality provisions are often supported by separate information-security and data-protection policies.

Non-Competition Clauses

Non-competition restrictions may be included in Luxembourg employment agreements, but they should be drafted carefully.

Luxembourg’s Labour Inspectorate recognises non-competition clauses as an example of an optional contractual provision.

Employers should avoid importing broad non-compete wording from contracts used in other countries without local review.

The restriction should be proportionate to the business interest the company is trying to protect.

This is particularly relevant for:

• senior sales employees;
• executives;
• employees handling strategic client relationships;
• employees with access to commercially sensitive information.

Changing an Employment Contract

Employment contracts frequently need to change as the employee’s role develops.

Typical changes include:

• salary increases;
• promotion;
• changes in working hours;
• changes to benefits;
• new work location;
• transition to part-time work;
• introduction of remote work.

Luxembourg guidance provides that amendments to contractual elements should be documented through a written addendum, normally prepared in duplicate.

Straightforward improvements to employment terms are generally easier to implement.

However, changes that are unfavourable to the employee and affect an essential contractual clause require greater care.

What Is an Essential Contractual Change?

Examples of potentially essential contractual changes include:

• reducing salary;
• removing or reducing significant benefits;
• demoting the employee;
• substantially changing employee classification;
• materially changing working hours;
• introducing a restrictive non-compete obligation.

For example, moving an employee from a management role to a subordinate role can constitute an essential change even if salary remains unchanged.

Similarly, moving an employee from 40 hours to 30 hours per week can affect both working conditions and remuneration.

International employers should therefore not assume that management can simply announce such changes through an email.

The appropriate contractual amendment procedure should be reviewed first.

Promotions and Salary Increases

Even favourable employment changes should be documented consistently.

Suppose an employee is promoted from:

Finance Manager

to

Finance Director

and receives:

• a higher salary;
• a new annual bonus;
• additional pension contribution.

The change should be reflected across:

• contractual documentation;
• payroll;
• HR records;
• benefits administration;
• internal organisation records.

This prevents the employer from having several different versions of the employee’s terms across different systems.

Employment Contracts and Termination

The employment contract should also identify or reference the applicable notice framework.

However, employers cannot simply write their own termination rules where these would conflict with statutory requirements.

Notice periods and termination procedure depend on factors such as:

• length of service;
• probation;
• type of dismissal;
• misconduct;
• protected status.

For example, ordinary employer notice can reach 6 months for an employee with at least 10 years of service.

Statutory severance can also apply after sufficient service.

For a complete breakdown, see Termination of Employment in Luxembourg.

Employment Contracts Through an Employer of Record

A company does not always need to establish its own Luxembourg entity to employ local staff.

An Employer of Record in Luxembourg can act as the legal employer and issue the local employment contract while the client company directs the employee’s operational work.

The EOR can typically coordinate:

• employment documentation;
• salary;
• payroll;
• social security;
• statutory benefits;
• annual leave;
• HR administration;
• termination procedures.

The client company should still define the commercial terms of the position, including role, compensation and operational responsibilities.

Using an EOR does not remove Luxembourg employment-contract requirements. It provides the local employment infrastructure through which those requirements can be administered.

Employment Contracts and Hiring

Contract planning should begin before the final offer is made.

Companies should determine:

• employment model;
• salary;
• qualification level;
• working hours;
• work location;
• benefits;
• probation;
• remote-working arrangements;
• immigration requirements;
• applicable collective agreement.

This allows recruitment and employment setup to proceed simultaneously.

Companies using our Hire Employees in Luxembourg services can combine candidate sourcing with employment planning so that the selected candidate can move from offer to onboarding without unnecessary contractual delays.

Common Contract Mistakes International Employers Make

Problems with Employment Contracts in Luxembourg often arise when international employers reuse a global template without local adaptation.

Common mistakes include:

• using a foreign contract without Luxembourg review;
• failing to document a fixed-term reason properly;
• using a CDD for a permanent staffing requirement;
• exceeding the permitted CDD duration;
• inserting an excessive probation period;
• failing to account for the special probation limit for a CDD;
• stating incorrect working hours;
• omitting an actual remote-working arrangement;
• failing to identify applicable salary indexation;
• using unclear bonus language;
• ignoring an applicable collective agreement;
• changing essential employment terms informally;
• failing to update payroll after contractual changes.

Another frequent mistake is drafting the contract around the employer’s preferred global policy rather than around the actual Luxembourg employment relationship.

The contract should reflect reality.

If the employee works in Luxembourg, receives Luxembourg payroll and follows Luxembourg working conditions, those circumstances should be properly represented in the employment documentation.

Employer Contract Checklist

Before an employment contract is signed, employers should verify:

• correct employer entity;
• employee identity;
• employment start date;
• CDI or CDD;
• lawful reason for CDD where applicable;
• work location;
• job title and duties;
• daily or weekly hours;
• normal schedule;
• gross salary;
• applicable wage index;
• variable compensation;
• employee benefits;
• annual leave;
• probation;
• notice provisions;
• collective agreement;
• pension arrangements;
• remote-work terms;
• immigration conditions where relevant.

HR should then confirm that the same information has been configured correctly in payroll and internal employee records.

Example: Hiring a Luxembourg Finance Manager

Consider an international company hiring a Finance Manager in Luxembourg.

Before issuing the contract, the company should determine:

Contract type: CDI, because the position is permanent.

Work location: Luxembourg office with agreed hybrid work.

Working time: 40 hours per week.

Salary: fixed annual gross salary plus performance bonus.

Indexation: Luxembourg salary index reflected in payroll.

Leave: at least statutory Luxembourg entitlement or higher contractual allowance.

Probation: structured according to applicable rules and salary level.

Benefits: agreed insurance, meal and pension arrangements documented.

Collective agreement: checked before contract issuance.

Remote work: written arrangement defining permitted working location and availability.

This structure gives HR, payroll and the employee a consistent understanding of the relationship from the first day of employment.

Employment Contracts in Luxembourg: What Employers Should Prioritise

The strongest employment contract is not necessarily the longest one.

It is the contract that accurately reflects the actual working relationship and gives both the employee and employer clarity over the conditions that matter.

For international employers, the key priorities are:

• choosing the correct CDI or CDD structure;
• documenting salary and variable compensation accurately;
• using a lawful probation period;
• defining working time and work location;
• incorporating remote work where relevant;
• checking collective agreements;
• keeping contractual terms aligned with payroll and HR records.

A well-structured contract reduces ambiguity later in the employment relationship and provides the foundation for compliant payroll, workforce management and termination.

How Brain Source International Can Support Employers

Brain Source International supports companies recruiting and employing professionals in Luxembourg.

Our services can include:

• international recruitment;
• executive search;
• Employer of Record services;
• payroll coordination;
• onboarding;
• workforce management;
• HR administration;
• international HR consulting.

Companies without a local employment entity can use an Employer of Record in Luxembourg to establish a compliant local employment structure.

Businesses still building their team can use our Hire Employees in Luxembourg services for candidate sourcing and employment planning.

For related employer requirements, see Employment Law in Luxembourg, Working Hours in Luxembourg, Annual Leave in Luxembourg, Minimum Wage in Luxembourg, Employee Benefits in Luxembourg and Termination of Employment in Luxembourg.

Frequently Asked Questions

Does an employment contract have to be in writing in Luxembourg?

The standard approach is to prepare the contract in writing by the time employment begins and in two copies. However, an oral employment relationship can still be legally recognised and will generally be treated as indefinite rather than fixed-term.

What is the standard employment contract in Luxembourg?

The CDI, or permanent employment contract, is generally used for lasting staffing requirements forming part of the normal and permanent activity of the employer.

How long can a fixed-term contract last?

A standard CDD can generally last a maximum of 24 months including renewals and may ordinarily be renewed twice within that period.

How long can probation last?

The general maximum is 6 months, reduced to 3 months for employees below the relevant vocational-training threshold. A probation period of up to 12 months can apply where starting gross monthly remuneration meets the applicable indexed salary threshold, which is €5,318.41 at index 992.24 in 2026.

Can a CDD include probation?

Yes, but the probation period cannot generally exceed one quarter of the CDD’s duration or minimum duration and remains subject to the other statutory limits.

Do part-time employees need different contract terms?

Yes. A part-time contract should specify weekly working hours, their distribution across the week and applicable conditions for additional hours or schedule flexibility.

Should remote work be included in the employment contract?

Where teleworking forms part of the employment arrangement, it should be agreed between employer and employee and documented in the initial arrangement or a written amendment, together with the required telework information.

Can an employer change an employment contract?

Changes can be made, but amendments should be documented. Unfavourable changes affecting essential contractual terms such as pay, classification or working hours can require a specific procedure.

Can a foreign company issue a Luxembourg employment contract without having an entity?

A foreign company may use an Employer of Record in Luxembourg, which becomes the local legal employer and issues the employment contract while the client company manages the employee operationally.