Guide to employment law in Luxembourg

The Luxembourg employment contract must in principle be drawn up in writing, at the latest at the time of taking up employment, and must contain mandatory particulars: identity of the parties, start date, place of work, nature of the job, working time, pay and, where applicable, the applicable collective agreement. In the absence of a written contract, the relationship is presumed to be concluded for an indefinite period, which protects the employee.

The open ended contract, or CDI, is the default form. The fixed term contract, or CDD, remains the exception: it may be concluded only for a specific and temporary task, must not durably fill a job linked to the normal activity of the business, and its total duration, including renewals, is capped. Failure to comply with these conditions leads to the recharacterisation of the CDD as a CDI, with the consequences that follow.

The probationary period is not automatic: it must be provided for in writing in the contract, failing which the contract is deemed concluded without a trial period. Its duration is regulated, with a minimum and a maximum set by law depending in particular on the employee's level of qualification and pay. During the trial period, the contract may be terminated under specific, more flexible notice rules than those applicable after confirmation of the hiring, but the employer may not end the trial period on an unlawful or discriminatory ground.

Securing the drafting of the contract from the outset avoids many subsequent disputes. A poorly calibrated trial clause, a poorly justified CDD or incomplete particulars weaken the employer's position and may give rise to rights for the employee. A review by a lawyer before signing remains the most worthwhile investment.

Normal working time is in principle 8 hours per day and 40 hours per week. Arrangements are possible within a work organisation plan or a collective agreement, which may vary the distribution of hours over a reference period, within the legal limits. Hours worked beyond normal working time give rise, depending on the case, to a premium or to compensation in time off.

The employee benefits from mandatory rest periods: daily rest, weekly rest and breaks. Night work, Sunday work and work on public holidays are subject to particular rules and give rise, depending on the case, to specific premiums or compensation.

The standard annual paid leave is 26 working days per year for a full time employee, in addition to the statutory public holidays. To this are added extraordinary leave linked to certain life events, parental leave, leave for family reasons and other specific leave provided for by law. The calculation of entitlements, their carry over and their payment at the end of the contract are frequent sources of disagreement.

Rigorous management of working time and leave protects the employer from litigation over overtime and guarantees the employee respect for their rights. Keeping time records and ensuring clear leave balances are essential, because the burden of proof may fall on the employer in the event of a dispute.

Every employee is entitled to pay at least equal to the minimum social wage, set by law and revalued periodically. The minimum social wage is higher for qualified employees than for unqualified employees, qualification being assessed according to legal criteria of diploma or experience. Pay is also adjusted to the evolution of the cost of living through the mechanism of automatic indexation.

Pay may comprise, in addition to the base salary, variable elements such as bonuses, gratuities or a thirteenth month, as well as benefits in kind. The distinction between a contractual bonus, due as a matter of principle, and a discretionary gratuity, left to the employer's discretion, has significant consequences and must be clearly established in the contract or the company's practices.

Pay must be made on a regular periodic basis and accompanied by a detailed payslip. Deductions are strictly regulated, and non payment, partial payment or the failure to pay amounts due exposes the employer to litigation and, in certain situations, may justify a termination of the contract attributable to the employer. On the employee's side, checking payslips and the amounts actually received is a useful precaution.

The employer may not unilaterally and freely amend the employment contract. A distinction must be drawn between a mere change in working conditions, which falls within the employer's managerial power and in principle binds the employee, and the amendment of an essential element of the contract, such as a reduction in pay, a substantial change of duties or a significant change in working hours, which requires a particular procedure.

Where the employer wishes to amend an essential element of the contract to the employee's detriment, it must follow a procedure close to that of dismissal: the amendment must be notified in due form, reasoned, and the employee has a period in which to accept or refuse it. The employee's refusal may lead the employer to withdraw or, where appropriate, to initiate a dismissal procedure based on a real and serious ground.

An amendment imposed without compliance with this procedure may be deprived of effect and expose the employer to a conviction. For the employee, it is important not to implicitly accept an unfavourable amendment by simply continuing to work without reacting. Analysing the boundary between a change in working conditions and an amendment of the contract is often delicate and warrants the advice of a lawyer.

The dismissal of an employee on an open ended contract must be based on a real and serious ground, linked either to the employee's aptitude or conduct, or to the operational needs of the business. A dismissal without valid cause, or whose cause is not established, is qualified as unfair and gives rise to a right to compensation. There are two main routes: dismissal with notice and dismissal with immediate effect for serious misconduct.

In businesses that reach a certain headcount, the employer must, before notifying a dismissal with notice, summon the employee to a prior meeting by registered letter specifying the purpose of the summons. The meeting allows the employee to explain themselves, possibly assisted, before any decision. Failure to comply with this step constitutes a procedural irregularity that is sanctioned.

The dismissal is notified by registered letter. The duration of the notice period varies according to the employee's length of service, and an employee with a certain length of service is also entitled to a severance payment calculated on the basis of that length of service. During the notice period, the employee may benefit from exemptions or time off to look for a new job under the applicable rules.

The employee may, within a set period, ask the employer for the precise grounds for the dismissal by registered letter. The employer must then state these grounds with precision, so as to allow them to be verified. Imprecision or the absence of a reply weakens the employer's position and may suffice to have the dismissal judged unfair. Procedural rigour is therefore decisive for employer and employee alike.

A dismissal is unfair when it is not based on a real and serious ground, when the grounds invoked are not established, or when the procedure has not been complied with. Certain situations also benefit from reinforced protection, for example a dismissal occurring during a period of statutory protection, which may be struck with nullity and give rise to a request for reinstatement.

An employee who believes they have been unfairly dismissed may bring an action before the Labour Tribunal to obtain compensation. The compensation aims to repair the material harm, linked to the loss of income, and the moral harm. The amount depends on numerous factors: length of service, age, position in the labour market, circumstances of the termination and difficulty in finding new employment.

For the employer, the challenge is to be able to justify the ground and to demonstrate compliance with the procedure: proof of the facts alleged and the regularity of the steps are decisive. For the employee, building a solid file, keeping the correspondence and respecting the time limits for action determine the success of the claim. In both cases, an early analysis by a lawyer makes it possible to assess the prospects and to quantify the stakes before any litigation.

Resignation is the termination of the contract at the employee's initiative. It must result from a clear and unequivocal intention and respect a notice period whose duration depends on length of service. A resignation given in the heat of emotion or under pressure may be challenged, and a resignation prompted by breaches on the employer's part may be recharacterised, the employee then being able to claim a termination attributable to the employer.

Luxembourg law allows termination of the contract by mutual agreement: employer and employee agree together to end the employment relationship, by a written document drawn up in as many copies as there are parties. This consensual route makes it possible to organise a negotiated separation, to set the terms of the departure and to secure the final balances, while avoiding the uncertainty of litigation.

A well negotiated termination by mutual agreement protects the interests of both parties and clarifies the consequences of the departure. Consent must be free and informed, and the terms of the agreement must be drafted with care to avoid any subsequent challenge. The assistance of a lawyer, for employer and employee alike, secures the negotiation and the drafting of the agreement.

The employee is protected against moral harassment and sexual harassment in the workplace. Harassment is characterised by repeated acts or, for sexual harassment, by conduct of a sexual nature, which undermines the dignity, health or integrity of the person and degrades working conditions. The law imposes on the employer an obligation of prevention and response.

The employer has a duty to prevent such situations, to put a stop to any harassment brought to its attention and to protect the victim and witnesses against reprisals. An employee may not be sanctioned or dismissed for having reported harassment in good faith or for having refused to submit to such conduct. Retaliatory measures taken in this context are liable to be annulled.

Employment law also protects the employee against discrimination based on prohibited criteria, as well as in particular situations such as illness or maternity, which give rise to specific protections against dismissal. The victim may act to put a stop to the conduct and to obtain compensation for the harm suffered.

These matters are sensitive and rest largely on evidence. Documenting the facts, keeping the correspondence and acting in due form and within the time limits is essential. For the employer, putting in place a prevention policy and dealing seriously with any report reduces the legal risk. For the employee, the support of a lawyer helps to structure the file and to choose the most appropriate strategy.

Individual disputes arising from the employment contract fall within the jurisdiction of the Labour Tribunal, a specialised court competent in particular for disputes relating to dismissal, payment of wages, overtime, leave or performance of the contract. Bringing a claim is subject to rules of form and, above all, to time limits that must imperatively be respected, on pain of being time barred.

Certain actions, in particular the challenge to an unfair dismissal, are confined within relatively short time limits. An employee who lets the deadline pass may definitively lose the right to act, even if the dismissal was open to criticism. This time constraint makes the early analysis of the situation decisive: it is often necessary to decide and act quickly.

The procedure may include a conciliation phase aimed at bringing the parties together before judgment. Many disputes are settled by a settlement that avoids the uncertainty and length of a trial. Where no agreement is possible, the tribunal rules on the basis of the documents and the arguments exchanged, which underlines the importance of a rigorously assembled file.

Whether one is an employer or an employee, the assistance of a lawyer makes it possible to assess the prospects of success, to respect the time limits and forms, to build a convincing file and to conduct any negotiation. A strategy defined in advance, rather than in haste, appreciably improves the outcome of the dispute.

Employment law is a field where form and time limits count as much as substance. A poorly conducted procedure, an imprecise letter or a missed deadline may be enough to tip a case. The lawyer intervenes upstream to secure practices and documents, and downstream to defend the client's interests in the event of a dispute, in compliance with the ethical rules of the Bar.

For the employer, the lawyer makes the drafting of contracts and clauses reliable, advises on the management of working time and pay, secures amendment and dismissal procedures, and defends the business in the event of litigation. The aim is to prevent disputes and, when they arise, to limit the financial and reputational risk.

For the employee, the lawyer analyses the lawfulness of a dismissal or a sanction, assesses the prospects of an action, quantifies the potential compensation, negotiates a termination or a settlement, and represents the employee before the Labour Tribunal. The firm takes care never to act simultaneously for an employer and an employee in opposition on the same matter, in accordance with the rules on conflicts of interest.

Cerno Law Firm offers a diagnostic consultation to qualify the situation and identify the way forward before any engagement. The firm's digital tools facilitate the gathering of documents, the qualification of the matter and the tracking of procedures, but it is the lawyer's analysis that secures the substance and engages their professional responsibility. This guide has given you the overview; the next step is to test your specific case against the advice of a lawyer.