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 competencies 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 compliance issue in its own right. This article provides a comprehensive overview of the legal framework governing the trial period.

What is the trial period and why is it regulated?

The trial period is the initial phase of an employment contract during which each party may end the employment relationship without having to justify a reason nor, in principle, to pay a severance indemnity. It is fundamentally distinct from notice or resignation: it is not an ordinary contractual termination but a bilateral faculty expressly provided for by the Labour Code.

The need for express stipulation

According to Article L. 1221-23 of the Labour Code, the trial period — and the possibility of renewing it — must be expressly stipulated in the letter of offer or in the employment contract. The absence of written mention deprives the employer of the ability to rely on it. This principle is regularly reiterated by the Court of Cassation (notably Cass. soc., 25 November 2009, n°08-43.008). In other words, a trial period is not presumed; it must be proved in writing.

Categories of employees covered

The 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 according to professional category

For CDIs, the maximum durations are set by Article L. 1221-19 of the Labour Code. They vary according to the professional category of the employee.

Maximum durations by category

The law distinguishes three categories:

• Workers and employees: 2 months

• Supervisory staff and technicians: 3 months

• Executives: 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, except for a collective provision prior to the law of 25 June 2008 that had 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 only once, under 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 end of the initial period.

The total duration (initial period + renewal) may not exceed double the maximum legal durations, i.e. 4 months for workers/employees, 6 months for supervisory staff/technicians, and 8 months for executives. Any clause providing for renewal not provided for by an extended sectoral agreement is deemed void.

Termination of the trial period: rules and notice periods

It is often on this ground that disputes arise. The termination of the trial period is free in principle, but it 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 it is the employer who ends the trial period, they must observe a notice period calculated according to 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 it is the employee who terminates the trial period, they must give the employer notice 48 hours in advance (24 hours if their service in the company is less than 8 days). Non-compliance with these periods by the employer gives rise to a compensatory indemnity in favour of the employee, without calling into question the validity of the termination itself.

Wrongful termination of the trial period

Although the trial period permits termination without cause, it must not be discriminatory or abusive. The Court of Cassation regularly sanctions terminations occurring for a reason unrelated to the assessment of the employee's professional aptitudes (maternity, state of health, exercise of a trade union right, etc.). A discriminatory termination exposes the employer to damages that may be substantial. Rigorous formalisation of exchanges — including through electronic contract management tools in the company — makes it possible to retain credible evidence of the steps taken.

Special cases: illness, maternity and occupational accident

The trial period is suspended — but not interrupted — in case of illness, occupational accident or maternity/paternity leave. It resumes for the remaining duration following the suspension. However, it is prohibited to terminate the trial period during maternity leave (absolute protection) or during a sick leave 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 documents signed electronically — employment contracts, renewal amendments, termination notifications — 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 signature as equivalent to handwritten signature, provided that it makes it possible to identify its author and guarantees 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, an advanced electronic signature is generally sufficient, but caution recommends a qualified solution for acts with high stakes. You can consult our comprehensive guide to eIDAS 2.0 regulation to understand the applicable compliance levels.

Time-stamping and traceability of acts

The 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 time-stamped audit trail and proof of consent that can be relied upon. This is particularly useful for demonstrating compliance with notice periods in the event of a dispute. The comprehensive guide to electronic signature details the best practices to adopt for each type of document.

Integration with HR workflows

Many HR departments now integrate the management of trial periods into automated workflows: generation of the initial contract, reminder of the end date of the period, renewal workflow or confirmation of the end of the trial. 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 the employee category. This automation significantly reduces contractual drafting errors, the leading cause of employment tribunal disputes.

Trial period in atypical contracts and specific situations

Employee who has previously worked in the company

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

Non-renewal clause and employment guarantee

Some collective agreements provide protective clauses going beyond the legal minima: guarantee of employment 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 contractual drafting. Comparisons of electronic signature solutions now make it possible to integrate these parameters directly into contract generation workflows.

Legal framework applicable to the trial period

The trial period is primarily governed by Articles L. 1221-19 to L. 1221-26 of the Labour Code, arising from law n°2008-596 of 25 June 2008 on the modernisation of the labour market. These provisions established for the first time uniform maximum legal durations, ending the diversity of previous conventional practices.

Main reference texts:

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

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

• Article L. 1221-22: deals with the relationship between legal durations and conventional durations (priority to the most favourable to the employee for agreements after 2008).

• Article L. 1221-23: establishes the requirement for express stipulation in the contract or letter of offer.

• Articles L. 1221-25 and L. 1221-26: establish the notice periods for the employer and employee respectively 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 the temporary work assignment from the trial period of the possible CDI.

Regarding digital formalisation:

• Articles 1366 and 1367 of the Civil Code (arising from Ordinance No. 2016-131 of 10 February 2016): recognise the legal value of electronic signature and define its conditions of validity (identification of the author, integrity of the document).

• Regulation (EU) No. 910/2014 known as eIDAS: defines the three levels of electronic signature (simple, advanced, qualified) and their evidentiary value within the European Union. For employment contracts, advanced electronic signature (AES) is generally sufficient, but qualified signature (QES) provides an irrefutable 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 identity data in connection with electronic signature must be part of 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 a compensatory indemnity. A discriminatory termination engages tort liability and may give rise to damages before the Employment Tribunal, without a cap under the Macron scale. The absence of express stipulation of the trial period deprives the employer of any ability to rely on simplified termination and exposes them to requalification as dismissal without real and serious cause.

Usage scenarios: the trial period in HR practice

Scenario 1 — A small industrial company with high recruitment volume

A small industrial company with about a hundred employees recruits on average 30 to 40 collaborators per year, mostly production technicians and supervisory staff. Before digitalising its HR processes, employment contracts were printed, signed in person, scanned and then filed in physical folders. Three-month trial periods were rarely traced systematically: end dates were not automatically reminded, and two renewal cases had been formalised after the expiry of the initial period — making them legally void.

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

Scenario 2 — A management consulting firm recruits a senior executive

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

After three and a half months, the relationship between the candidate and the firm appears difficult. The partnership wishes to terminate the trial period. Thanks to the time-stamped audit trail of the platform, the date of signature of the contract is incontestable. The calculation of the notice period (1 month, as the employee has more than 3 months of service) is carried out automatically. The termination notification is sent electronically with built-in acknowledgement of receipt. No dispute follows, the procedure being flawless.

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

A hospital grouping with approximately 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 led to costly oversights: some employees were confirmed without formal evaluation, others saw their trial period terminated outside the time limits.

The integration of a digital workflow for contract management made it possible to standardise contract templates according to professional category (durations of 2 to 4 months pre-filled), automate reminders of end of period and centralise the archiving of signed documents. The administrative time devoted to managing trial periods decreased by approximately 60%, freeing HR teams for missions with higher added value.

Conclusion

The trial period is a valuable legal tool, but its validity depends on strict compliance with formal rules: 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 to manage these constraints: automated generation of compliant contracts, alerts on key dates and credible traceability of acts.

Certyneo supports HR and legal teams in securing their employment contracts through eIDAS-compliant electronic signature, a time-stamped 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 for free today.