Immediate Dismissal for Serious Misconduct in Luxembourg: Procedure and Effects

1. Definition and statutory basis of serious misconduct

Article L.124-10, §1 authorises the employer to terminate the employment contract without notice where one or more grounds of serious misconduct arising from the employee's act or fault are established. The termination takes effect immediately, without any notice period running.

§2 of the same article provides a statutory definition of serious misconduct: it is any fact or fault that makes the immediate and permanent continuation of the employment relationship impossible. This formula covers, for example, theft, physical violence in the workplace, disclosure of trade secrets, the commission of a criminal offence directly linked to the performance of the contract, or a professional fault of exceptional gravity.

The labour court assesses the gravity of the facts concretely, taking into account the employee's level of education, their disciplinary record, their social situation and the consequences the dismissal has for them. The same act may therefore constitute serious misconduct for an experienced manager while not doing so for a junior employee or one in a particularly vulnerable situation.

2. Time limit for action and form of notification

The validity of a dismissal for serious misconduct is conditional on the simultaneous observance of a time limit for invoking the grounds and formal requirements in the notification.

The one-month time limit

The facts relied upon in support of a dismissal for serious misconduct may not be invoked more than one month from the day on which the employer became aware of them (Art. L.124-10, §6). This time limit is suspended if criminal proceedings have been initiated within that same period in respect of the same facts — the suspension lasts until the criminal procedure is closed.

Notification: form and content

The dismissal letter must be notified by registered letter with acknowledgement of receipt or handed over in person against signature. It must set out precisely the facts complained of and the circumstances that give them their serious character (Art. L.124-10, §3).

The absence of a written statement of grounds — or a statement that is insufficiently precise — renders the dismissal wrongful, regardless of the reality of the facts. The letter cannot confine itself to generic formulae such as "serious misconduct" or "unacceptable behaviour" without concretely describing the acts complained of.

3. Precautionary suspension from duty

Where the seriousness of the situation warrants it — notably to protect the company, colleagues or customers — the employer may impose an immediate suspension from duty even before notifying the dismissal (Art. L.124-10, §4).

This precautionary suspension must be accompanied by the full maintenance of the employee's salary throughout its duration. It is not a final sanction but a provisional measure allowing the employee to be removed from the workplace while the dismissal decision is being formalised.

4. Procedure: pre-dismissal interview and notification deadlines

Dismissal for serious misconduct is not exempt from the pre-dismissal interview requirement where the company reaches the statutory threshold.

For companies with 150 or more employees, the pre-dismissal interview is mandatory before any dismissal, including for serious misconduct (Art. L.124-2, §1). The employee must be summoned by registered letter with acknowledgement of receipt, stating the purpose, date, time and venue. The interview may be scheduled no earlier than the second working day following the sending of the summons, and a copy must be sent to the staff delegation.

For companies with fewer than 150 employees, no pre-dismissal interview is legally required, unless a collective agreement provides otherwise. The employer may notify the dismissal directly by registered letter, provided the one-month time limit and the motivation requirements are observed.

5. Financial consequences for the employee

Dismissal for serious misconduct carries significantly more unfavourable financial consequences for the employee than ordinary dismissal with notice.

Loss of severance pay

An employee dismissed for serious misconduct loses their entitlement to the severance pay provided for by the Labour Code (Art. L.124-10, §1). This loss applies regardless of the employee's length of service with the company.

Unemployment benefits suspended

In principle, no unemployment benefit is payable in the event of dismissal for serious misconduct (Art. L.521-4, §1). However, the employee may apply to the president of the labour court for a provisional award of unemployment benefit pending the final decision on the merits of the dispute (Art. L.521-4, §2). This provisional measure avoids immediate financial hardship during the court proceedings.

Training costs

The actual costs of training provided under an employment retention plan may be charged to the employee in the event of serious misconduct (Art. L.513-6, §1). This provision applies where the training had been given with a view to keeping the employee in their post and where the serious misconduct breaks the trust relationship that justified the investment.

6. Special protections and burden of proof

Pregnant employees

It is in principle prohibited to notify the termination or the summons to the pre-dismissal interview to an employee whose pregnancy has been medically confirmed or during the 12 weeks following childbirth (Art. L.337-1, §1). However, in the event of serious misconduct, the employer may impose an immediate precautionary suspension and refer the matter to the labour court, pending whose decision the dismissal itself is suspended (Art. L.337-1, §2). The dismissal may only be pronounced after a court ruling.

Strike and refusal of part-time work

Abstaining from work due to a lawful strike does not constitute serious misconduct (Art. L.124-11, §4). Likewise, a full-time employee's refusal to perform part-time work cannot be characterised as serious misconduct (Art. L.124-11, §5). These two facts are expressly excluded by law from the scope of serious misconduct and cannot found an immediate dismissal.

Burden of proof

Where the dismissal is contested before the labour tribunal, the burden of proving the factual reality of the grounds and their real and serious character rests with the employer (Art. L.124-11, §3). If the employer fails to establish the existence and gravity of the facts stated in the notification letter, the dismissal will be reclassified as wrongful dismissal.