Trial Period: Legal Duration and Termination

The trial period is a fundamental contractual phase in the employment relationship: it allows the employer to assess the employee's skills, and conversely allows the employee to verify whether the position suits them. Yet its rules — maximum durations, renewal conditions, notice periods for termination — are sources of numerous disputes before labour courts. In 2025-2026, the digitisation of HR processes, in particular via electronic signature for HR, is transforming the way employment contracts including the trial period are concluded and archived. This guide presents the complete legal framework, pitfalls to avoid and best practices for securing your hires.

Legal Durations of Trial Period by Contract Type

The duration of the trial period varies depending on the nature of the employment contract and the professional category of the employee. These durations are fixed by the Labour Code and cannot be exceeded, except where a collective agreement is more favourable to the employee.

Permanent Employment Contract (CDI)

Since the labour market modernisation law of 25 June 2008, the maximum trial period durations for permanent contracts are clearly established:

• Workers and employees: 2 months

• Supervisory staff and technicians: 3 months

• Managers: 4 months

These durations are measured in calendar days, unless the applicable collective agreement provides otherwise. Note: suspension of the trial period (due to illness, workplace accident or paid leave taken at the employer's initiative) extends the initial duration accordingly.

Fixed-Term Employment Contract (CDD)

For fixed-term contracts, the trial period duration is proportional to that of the contract:

• For contracts of 6 months or less: 1 day per week worked, up to a maximum of 2 weeks

• For contracts exceeding 6 months: 1 month maximum

The Court of Cassation (Soc., 13 November 2019, no. 18-15.442) reminded that any clause fixing a longer duration is deemed unwritten.

Special Contracts: Apprenticeship and Professionalisation

The apprenticeship contract provides for a trial period of 45 days, during which either party may terminate freely. After this period, termination is subject to much more restrictive specific rules. The professionalisation contract follows the rules of fixed-term or permanent contracts depending on the form chosen.

Renewal of Trial Period: Conditions and Limits

Strictly Regulated Renewal

The trial period of a permanent contract may be renewed only once, subject to three cumulative conditions provided for in Article L.1221-21 of the Labour Code:

• An extended sectoral agreement must expressly provide for it

• The employment contract or letter of engagement must mention the possibility of renewal

• The express agreement of the employee must be obtained before expiration of the initial period

The employee's agreement cannot be presumed or tacit. Mere silence or failure to formally object does not constitute valid consent according to consistent case law. To secure this renewal, many employers today opt for eIDAS-compliant electronic signature, which precisely timestamps consent and produces incontestable proof.

Maximum Durations after Renewal

With renewal, the total maximum durations are:

• Workers and employees: 4 months

• Supervisory staff and technicians: 6 months

• Managers: 8 months

Any trial period exceeding these ceilings is null and void, which may transform a termination into dismissal without real and serious cause, with associated compensation consequences.

Trial Period Termination: Procedure and Notice Periods

Termination at Employer's Initiative

The employer may end the trial period without having to justify the decision and without following disciplinary procedure. However, the termination must not be abusive, discriminatory or based on an unlawful reason (state of health, pregnancy, union activity, etc.). In case of abusive termination, the employee may obtain damages before the Labour Court.

The notice periods to be observed by the employer are set out in Article L.1221-25 of the Labour Code:

• Presence of less than 8 days: 24 hours

• Presence between 8 days and 1 month: 48 hours

• Presence between 1 and 3 months: 2 weeks

• Presence of more than 3 months: 1 month

If the employer fails to observe these periods, it must pay a compensatory indemnity corresponding to the length of notice not served.

Termination at Employee's Initiative

An employee wishing to terminate their trial period has a notice period of 48 hours, reduced to 24 hours if their presence is less than 8 days. No motivation is required, and no severance indemnity is due. Termination takes the form of simple written notification, preferably by registered letter with acknowledgement of receipt or — an increasingly common solution — via electronic signature for business contracts allowing immediate archiving.

Special Cases: Protected Employee and Pregnant Woman

The trial period is not incompatible with protected status, but termination is subject to enhanced rules. For a staff representative whose mandate begins during the trial period, termination requires authorisation from the labour inspector. For an employee whose pregnancy is declared, termination is null if the employer is aware of it (Article L.1225-4 of the Labour Code).

Digitisation of Contracts and Securing the Trial Period

The Contribution of Electronic Signature in HR Management

Qualified or advanced electronic signature, compliant with eIDAS Regulation no. 910/2014, provides triple added value for managing trial periods:

• Certified time-stamping: the date of signature of the contract and any renewal amendment is incontestable

• Probative archiving: the electronically signed document has the same legal value as a paper document (Article 1366 of the Civil Code)

• Consent traceability: essential to prove that the employee expressly accepted renewal of their trial period

Modern SaaS solutions allow these workflows to be integrated into existing HRIS via API, reducing average administrative onboarding time by 70% according to sector feedback from 2024-2025. To go further, the electronic signature ROI calculator allows you to estimate concrete gains for your organisation.

Compliant Contract Templates and Best Practices

The use of downloadable contract templates pre-established and regularly updated in light of legislative changes significantly reduces the risk of drafting error. A poorly worded contract — omitting mention of the possibility of renewal, or fixing an excessive duration — may invalidate the entire trial period and expose the employer to a labour court award.

Key points of vigilance when drafting are:

• Explicitly mention the duration of the trial period and the possibility of renewal if the applicable collective agreement permits it

• Specify the professional category to justify the duration chosen

• Integrate an electronic archiving clause for any subsequent modification

Legal Framework Applicable to Trial Period

The trial period is governed by a set of legislative and regulatory texts that employers and employees must master to avoid any dispute.

Labour Code — Main Provisions

• Article L.1221-19: sets the maximum trial period durations for permanent contracts by professional category (2 months workers/employees, 3 months supervisory staff/technicians, 4 months managers).

• Article L.1221-20: recalls that the collective agreement may provide for shorter durations, more favourable to the employee.

• Article L.1221-21: strictly regulates renewal (extended sectoral agreement, contractual mention, express employee agreement).

• Article L.1221-24: provides rules for calculating trial period duration in case of hiring following a traineeship.

• Article L.1221-25: imposes notice periods in case of termination at employer's initiative.

• Articles L.1225-4 and L.1225-5: protect the pregnant employee against any trial period termination once the employer is aware of the pregnancy.

Legal Value of Electronically Signed Contract

• Article 1366 of the Civil Code: "An electronic document has the same probative force as a document on paper medium, provided that the person from whom it emanates can be duly identified and it is established and maintained in conditions such as to guarantee its integrity."

• Article 1367 of the Civil Code: defines electronic signature as "the use of a reliable identification process guaranteeing its link to the document to which it is attached".

• eIDAS Regulation no. 910/2014 (EU) — and its successor eIDAS 2.0 currently being deployed — establishes three levels of electronic signature (simple, advanced, qualified) with a legal presumption of reliability for qualified signature (Article 25, paragraph 2).

GDPR and Processing of Candidate Data

The Regulation (EU) 2016/679 (GDPR) applies from the moment personal data is collected during recruitment. The employer must:

• Inform the employee of the purpose of processing their data in the contract

• Limit data retention to necessary periods (in practice, duration of employment law prescription: 3 years for wage claims, 5 years for liability actions)

• Ensure that electronic signature service providers are GDPR-compliant (EU hosting, signed DPA)

Reference Case Law

• Cass. Soc., 13 November 2019, no. 18-15.442: nullity of any trial period for fixed-term contract exceeding the legal ceiling

• Cass. Soc., 26 November 2020, no. 19-15.737: tacit renewal of trial period is null

• Cass. Soc., 8 April 2021, no. 19-14.605: discriminatory termination during trial period entitles damages

Concrete Usage Scenarios

Scenario 1 — SME in Services of 45 Employees Managing Frequent Hires

An SME in the digital services sector carrying out around twenty recruits per year faced a dual problem: employment contracts drafted with incorrect trial period durations for the manager category (3 months instead of 4), and lack of formal proof of renewal consent. After two labour court corrections in two years, the HR department implemented an advanced electronic signature flow for all employment contracts. Result: zero form-related disputes in 18 months, average signature time reduced from 5 days to less than 4 hours, and automatic archiving in the HRIS with certified time-stamping. The estimated HR productivity gain represents approximately 2 person-days per month.

Scenario 2 — Industrial Group Renewing Trial Periods for Senior Managers

An industrial group of medium size (approximately 600 employees) practiced renewal of trial periods for senior managers through simple email exchanges, without clear traceability of the employee's express agreement. Following an in-house legal service opinion highlighting the risk, the group deployed a SaaS electronic signature solution integrated with its HRIS. Each renewal request now generates a structured document signed electronically by both parties before expiration of the initial period, with proof of sending and timestamped acceptance. This process has reduced by 90% the risk of renewal invalidation and simplified annual HR audits.

Scenario 3 — Recruitment Firm Managing Successive Fixed-Term Contracts for Clients

A firm specialising in temporary recruitment of technical profiles supports its SME/small business clients in drafting and managing fixed-term contracts. These 3 to 6-month contracts systematically include a proportional trial period, whose calculation is a frequent source of error (confusion between working days and calendar days). The firm integrated a contract generator parameterised according to fixed-term contract duration, combined with an electronic signature solution, allowing clients to sign and archive contracts in less than an hour. Automatic reminders before trial period expiration allow managers to anticipate the decision to terminate or confirm in 100% of cases, compared to 60% previously.

Conclusion

The trial period constitutes a key moment in the employment relationship, subject to a precise legal framework that every employer must master: maximum durations by professional category, strict renewal conditions, mandatory notice periods in case of termination. Errors in this area expose you to costly disputes and reclassification of the termination as dismissal without real and serious cause.

Digitisation of contract management — in particular via eIDAS-compliant electronic signature — provides a concrete response to these issues: certified time-stamping, proof of consent, probative archiving. These tools are no longer reserved for large groups; they are accessible to all structures, regardless of size.

To secure your employment contracts from the trial period stage, discover the Certyneo solution and try our platform free.