Unpaid leave: framework, formalisation and return

Quick answer. Unpaid leave has no general statutory framework in France: no maximum duration, no required formalism. It rests on a mutual agreement. The employer may refuse it without justification, unless a collective agreement provides otherwise. The contract is suspended, with no pay and in principle no paid-leave accrual over the period (service-public.gouv.fr, factsheet F10431).

A management-grade employee asks to be away for three months for a personal project, without resigning. You are tempted to agree to retain them, but no payroll software field is named "unpaid leave". That is exactly the difficulty: this leave exists in practice while no article of the Labour Code organises it. Everything rests on the quality of the written agreement and on rigorous payroll handling, at departure and at return.

At Hayot Expertise, a firm registered with the Ile-de-France Order of Chartered Accountants, we regularly handle these requests within our social and payroll team. Here is how to frame it without creating a grey area.

Unpaid leave does not appear in the Labour Code as a stand-alone scheme. It has no minimum duration, no maximum duration and no required statutory formalism (service-public.gouv.fr, factsheet F10431). In practice, it is a simple mutual agreement between the employer and the employee.

Two direct consequences follow. First, the employer is not required to grant the leave and does not have to give reasons for a refusal, unless the collective agreement or a company agreement provides otherwise. Second, the absence of a text makes the written form essential: it sets the start date, the duration and the return date, and it serves as proof in the event of a dispute.

Our reading. This freedom cuts both ways. Many directors grant unpaid leave through a verbal agreement, then find themselves with no proof when the employee returns later than planned or contests the fate of their health cover. The absence of a statutory framework is not an absence of stakes: on the contrary, it calls for a precise written document.

Unpaid leave and other leaves: do not confuse them#

Unpaid leave differs from absences specifically organised by law, such as sabbatical leave, business-creation leave or leave for family events, which have their own seniority conditions and formalism. When a statutory scheme exists and the employee meets its conditions, it is better to rely on it: it offers a security that unpaid leave lacks.

During unpaid leave, the employment contract is suspended, not terminated (service-public.gouv.fr, factsheet F10431). This nuance is central. At the end of the leave, the employee recovers their job or an equivalent job, with a pay at least equal. The contractual link is never broken.

The employee also remains bound by a duty of loyalty: they may not carry out a competing activity during their absence. A breach of this duty may justify termination of the contract.

On pay and rights, the principle is simple:

• No pay is paid by the employer during the leave.
• The period is in principle not treated as effective work: no paid-leave accrual and no seniority over the duration of the leave, unless a more favourable collective provision applies.
• In the event of illness during the leave, the employee receives no social-security daily allowances linked to this unpaid suspension.

The underestimated risk. The loss of paid-leave rights over the period often surprises the employee on return, especially for a long leave. State it in black and white in the agreement. Also systematically check the collective agreement: some sectors maintain seniority or more favourable rights, and overlooking this exposes you to a later claim.

It is on social protection that mistakes are most frequent. The maintenance of basic health-insurance rights depends on the situation, but the employee may lose the benefit of cash benefits, in particular daily allowances (service-public.gouv.fr, factsheet F10431).

The question of the company health cover is even more sensitive. The mandatory group health cover is governed by article L911-7 of the Social Security Code. In the event of an unpaid suspension of the contract, such as unpaid leave, the employer is in principle not required to maintain its contribution to the group cover, unless the founding document or the contract is more favourable. The employee may then often ask to maintain their membership on an individual basis, by paying the full contribution.

This is not to be confused with the portability provided for in article L911-8 of the Social Security Code: it concerns the termination of the contract giving rise to unemployment-insurance entitlement, not a mere suspension. Unpaid leave therefore does not trigger portability.

Watch points 2026. Before any departure, re-read the founding document of your health and provident scheme: it determines whether cover is suspended or maintained. In case of doubt on the exact terms, the Official Bulletin of Social Security (boss.gouv.fr) is the reference. Anticipate the answer to give the employee, as they will ask about their health cover before leaving.

Here is the procedure we apply to secure unpaid leave, from departure to return:

1. Receive the employee's written request, stating the desired start date, duration and return date.
2. Check the applicable collective agreement: it may impose a procedure, a quota or open a right, which limits your freedom to refuse.
3. Formalise the mutual written agreement: duration, return date, continuing duty of loyalty, fate of the health cover and loss of paid-leave rights.
4. Suspend the contract and payroll: reduce pay pro rata to the days of absence and record the absence with the right reason in the nominative social declaration.
5. Manage health cover and provident schemes: check the founding document, offer the employee individual continuation if cover is interrupted.
6. Resume payroll on return: rebuild the counters, check the seniority continuation set by the agreement and reactivate the suspended cover.

In practice: payroll at departure and return#

At departure, unpaid leave is treated as an unpaid absence: pay is reduced pro rata to the days of absence on the payslip, and the appropriate absence reason is reported in the DSN for each period. Clean configuration in your Pennylane management tool or payroll software avoids cascading corrections.

On return, normal payroll resumes. This is the moment to check the seniority continuation under the collective agreement, rebuild the counters and verify consistency with your collective salary grid. Also make sure the return pay remains at least equal to that before the leave, as required by the equivalent-job rule.

A common case. Recently, an SME director sought our help after granting four months of unpaid leave to a manager, without a written document and without suspending the health cover. On return, the employee was claiming paid leave accrued over the period and a health-cover reimbursement that had kept running. Rebuilding the agreement after the fact was laborious. A document signed at departure would have closed the matter in minutes.

Faced with an unpaid-leave request, three legitimate options exist. They are not equivalent depending on the context.

• Accept is appropriate when the employee is key, the absence is plannable and you want to retain them over the long term. The trade-off is organising the temporary replacement.
• Refuse is justified when the absence disrupts a department, provided no collective agreement opens a right. The refusal need not be motivated, but an abrupt refusal damages the relationship.
• Offer an alternative (statutory sabbatical leave if conditions are met, working-time arrangement, temporary remote work) sometimes offers a better balance between the employee's request and legal security.

For sensitive aspects, the support of our firm covers payroll configuration and compliance; litigious termination or collective bargaining situations fall instead to a labour-law lawyer's advice.