Trial Period: Legal Duration and Termination

The trial period is one of the most practical — and most poorly understood — concepts in French employment law. For the employer, it allows them to assess the skills of a newly recruited employee; for the employee, it offers the opportunity to ensure that the position meets their expectations. However, this flexibility is governed by strict rules: maximum duration, conditions for renewal, notice periods in case of termination. In 2026, with the generalisation of digital tools in human resources management, the formalisation of these steps — including via electronic signature for HR — becomes a full compliance issue. This article provides a comprehensive overview of the legal framework governing trial periods.

What is a trial period and why is it regulated?

A trial period is the initial phase of an employment contract during which each party can end the employment relationship without having to justify a reason or, in principle, pay termination compensation. It is fundamentally different from notice periods or resignation: it is not an ordinary contractual termination but a bilateral right expressly provided for in the Labour Code.

The requirement for express stipulation

Under article L. 1221-23 of the Labour Code, the trial period — and the possibility of renewing it — must be expressly stipulated in the engagement letter or in the employment contract. The absence of written mention deprives the employer of the ability to rely on it. This principle is regularly reaffirmed by the Court of Cassation (notably Cass. soc., 25 November 2009, no. 08-43.008). In other words, a trial period is not presumed; it must be proven in writing.

The categories of employees covered

A trial period may apply to all types of permanent employment contracts (CDI), but also to fixed-term contracts (CDD), with specific rules. For CDDs, the duration is proportional to the total duration of the contract: one day per week up to a maximum of two weeks for contracts of less than six months, and one month for contracts of six months or longer (article L. 1242-10 of the Labour Code).

Legal duration of the trial period by professional category

For permanent contracts, maximum durations are set by article L. 1221-19 of the Labour Code. They vary depending on the professional category of the employee.

Maximum durations by category

The law distinguishes three categories:

• Workers and employees: 2 months

• Supervisors and technicians: 3 months

• Managers: 4 months

These durations constitute legal ceilings. A collective agreement or sectoral agreement may provide for shorter durations, but never longer than the legal maxima, unless a sectoral agreement predating the law of 25 June 2008 provided for higher durations (article L. 1221-22 of the Labour Code). It is therefore imperative to consult the applicable collective agreement before drafting any contract.

Renewal of the trial period

The trial period may be renewed once only, subject to two cumulative conditions (article L. 1221-21):

• An extended sectoral agreement must expressly provide for it;

• The renewal must be formalised in writing and signed before the expiry of the initial period.

The total duration (initial period + renewal) cannot exceed double the legal maximum durations, namely 4 months for workers/employees, 6 months for supervisors/technicians, and 8 months for managers. Any clause providing for renewal not envisaged by an extended sectoral agreement is deemed not written.

Termination of the trial period: rules and notice periods

This is often where disputes arise. Termination of a trial period is free in principle, but is regulated in its procedures since the law of 25 June 2008 (articles L. 1221-25 and L. 1221-26 of the Labour Code).

Notice periods to be observed

When the employer terminates the trial period, they must observe a notice period calculated based on the employee's length of service in the company:

• Less than 8 days of service: 24 hours

• Between 8 days and 1 month of service: 48 hours

• Between 1 and 3 months of service: 2 weeks

• More than 3 months of service: 1 month

When the employee terminates the trial period, they must notify the employer 48 hours in advance (24 hours if their time in the company is less than 8 days). Failure by the employer to comply with these periods gives rise to compensatory damages for the employee, without calling into question the validity of the termination itself.

Abusive termination of the trial period

Although the trial period allows for termination without reason, it must not be discriminatory or abusive. The Court of Cassation regularly sanctions terminations made for a reason unrelated to the assessment of the employee's professional skills (pregnancy, state of health, exercise of trade union rights, etc.). Discriminatory termination exposes the employer to damages that may be substantial. The rigorous formalisation of exchanges — including through electronic contract management tools in the enterprise — allows keeping a reliable record of the steps followed.

Special cases: illness, maternity and occupational accident

The trial period is suspended — but not interrupted — in the event of illness, occupational accident or maternity/paternity leave. It resumes for the remaining duration after the suspension ends. It is, however, prohibited to terminate the trial period during maternity leave (absolute protection) or during an absence resulting from an occupational accident.

Digital formalisation of the trial period in 2026

With the digital transformation of HR processes, the question of the legal validity of electronically signed documents — employment contracts, renewal amendments, termination notices — has become central.

Legal value of electronic signature on HR documents

Since ordinance no. 2016-131 of 10 February 2016, the Civil Code recognises electronic signatures as equivalent to handwritten signatures, provided that they allow identification of their author and guarantee the integrity of the document (articles 1366 and 1367 of the Civil Code). The European eIDAS regulation (no. 910/2014) distinguishes three levels: simple, advanced and qualified. For employment contracts, advanced electronic signature is generally sufficient, but prudence recommends a qualified solution for high-stakes acts. You can consult our complete guide to eIDAS 2.0 regulation to understand the applicable compliance levels.

Timestamping and traceability of acts

Termination of a trial period by electronic means raises the question of proof of the date of receipt. The use of a compliant electronic signature platform automatically generates a timestamped audit trail and proof of consent enforceable against the parties. This is particularly useful for demonstrating compliance with notice periods in the event of dispute. The complete guide to electronic signature details best practices to adopt for each type of document.

Integration with HR workflows

Many HR departments now integrate trial period management into automated workflows: generation of the initial contract, reminders of the period end date, renewal workflow or confirmation of the end of probation. The use of an AI-powered contract generator makes it possible to produce documents compliant with applicable law, with pre-filling of legal durations according to employee category. This automation significantly reduces drafting errors, the first source of employment tribunal disputes.

Trial periods in atypical contracts and specific situations

Employee who has already worked in the company

When an employee is rehired after a temporary work assignment or fixed-term contract, the duration of the previous assignment may be deducted from the trial period of the new contract, under the conditions provided in article L. 1251-38 of the Labour Code for temporary work and article L. 1243-11 for fixed-term contracts. This rule prevents a company from systematically preceding its recruitment with temporary assignments to circumvent permanent contract protections.

Non-renewal clause and employment guarantee

Some collective agreements provide for protective clauses going beyond legal minima: employment guarantee at the end of training, impossibility of stipulating a trial period for certain categories of employees, etc. It is imperative to analyse the applicable collective agreement before any contract drafting. Comparisons of electronic signature solutions now allow these parameters to be integrated directly into contract generation workflows.

Legal framework applicable to trial periods

The trial period is primarily governed by articles L. 1221-19 to L. 1221-26 of the Labour Code, resulting from law no. 2008-596 of 25 June 2008 on modernising the labour market. These provisions established for the first time uniform legal maximum durations, ending the diversity of previous collective agreement practices.

Main reference texts:

• Article L. 1221-19 of the Labour Code: sets the maximum durations of the trial period for permanent contracts by professional category (2, 3 or 4 months).

• Article L. 1221-21: governs the conditions for renewal (extended sectoral agreement, prior written agreement).

• Article L. 1221-22: addresses the relationship between legal and agreed durations (priority given to provisions more favourable to the employee for agreements after 2008).

• Article L. 1221-23: requires express stipulation in the contract or engagement letter.

• Articles L. 1221-25 and L. 1221-26: establish the respective notice periods for the employer and employee in case of termination.

• Article L. 1242-10: governs the trial period for fixed-term contracts.

• Article L. 1251-38: provides for the deduction of the duration of temporary work assignment from the trial period of a potential permanent contract.

Regarding digital formalisation:

• Articles 1366 and 1367 of the Civil Code (resulting from ordinance no. 2016-131 of 10 February 2016): recognise the legal value of electronic signatures and define their conditions of validity (identification of the author, integrity of the document).

• Regulation (EU) no. 910/2014 called eIDAS: defines the three levels of electronic signature (simple, advanced, qualified) and their probative value within the European Union. For employment contracts, advanced electronic signature (AES) is generally sufficient, but qualified signature (QES) provides an irrebuttable presumption of authenticity.

• Regulation (EU) no. 2016/679 (GDPR): imposes obligations to protect personal data in the processing of employee files. The collection of biometric or identification data in the context of electronic signature must fall within a valid legal basis (contract performance, art. 6.1.b).

• ETSI EN 319 132 standards: technical specifications for advanced XML signatures (XAdES), applicable to eIDAS-compliant signature platforms.

Legal risks for the employer:

Non-compliance with notice periods exposes the employer to compensatory damages. Discriminatory termination engages tort liability and may give rise to damages before the employment tribunal, without limitation under the Macron scale. The absence of express stipulation of the trial period deprives the employer of any ability to effect simplified termination and exposes them to reclassification as wrongful dismissal without real and serious cause.

Use scenarios: trial periods in HR practice

Scenario 1 — An industrial SME with a high volume of recruitment

An industrial SME of around one hundred employees recruits on average 30 to 40 staff members per year, mainly production technicians and supervisors. Before digitalising its HR processes, employment contracts were printed, signed in person, scanned and then filed in physical folders. Trial periods of three months were rarely systematically recorded: end dates were not automatically reminded, and two renewal cases had been formalised after the initial period expired — making them legally void.

By adopting an electronic signature solution integrated with its HRIS, the SME now automatically generates an alert 15 days before the end of each trial period. The HR director triggers either a renewal amendment (electronically signed within legal timeframes) or a termination letter with automatic calculation of the notice period. Employment tribunal disputes related to procedural defects have been reduced by more than 80% over two years, according to an internal estimate consistent with figures published by sectoral HR observatories.

Scenario 2 — A management consulting firm recruits a senior manager

A consulting firm specialising in management of around twenty consultants recruits a managing director on a permanent contract. The legal trial period for managers is four months, renewable once if the applicable collective agreement provides for it — which is the case here (Syntec convention). The contract is drafted with an explicit renewal clause and electronically signed by both parties via a platform compliant with eIDAS advanced level.

After three and a half months, the relationship between the candidate and the firm appears difficult. Management wishes to terminate the trial period. Thanks to the timestamped audit trail of the platform, the contract signature date is indisputable. The notice period calculation (1 month, as the employee has more than 3 months of service) is automatically performed. Termination notification is sent electronically with integrated acknowledgement of receipt. No dispute arises, the procedure being impeccable.

Scenario 3 — A hospital group manages trial periods for its non-medical staff

A hospital group of around 800 beds employs several hundred non-medical staff subject to the Labour Code (laboratory technicians, administrative staff, health managers in the private sector). Manual management of trial periods generated costly oversights: some employees were confirmed without formal appraisal, while others had their trial periods terminated outside the notice period.

The integration of a digital workflow for contract management standardised contract templates by professional category (durations of 2 to 4 months pre-filled), automated reminders of period end dates and centralised archiving of signed documents. The administrative time devoted to trial period management decreased by approximately 60%, freeing HR teams for higher value-added tasks.

Conclusion

The trial period is a valuable legal tool, but its validity rests on strict compliance with formal requirements: express stipulation, maximum durations by category, conditions for renewal and notice periods in case of termination. In 2026, the digitalisation of HR processes offers practical solutions for managing these constraints: automatic generation of compliant contracts, alerts on key dates and reliable traceability of acts.

Certyneo supports HR and legal teams in securing their employment contracts through eIDAS-compliant electronic signature, a timestamped audit trail and customisable workflows. Whether you manage ten recruitments per year or several hundred, compliance is no longer a constraint but a competitive advantage.

Ready to secure your HR processes? Discover Certyneo pricing or test the platform free of charge today.