Trial period for a salaried trainer: duration, renewal, termination

You have just hired your first trainer on a permanent contract, signed with enthusiasm — and a question that often comes up afterwards: was the trial period actually set correctly, and what happens if things do not work out after a few weeks? Contrary to a common assumption, the trial period (période d’essai) is neither automatic nor a minor detail: its duration, renewal, and termination follow precise rules under the French Labour Code, which the collective bargaining agreement for training organisations sometimes adjusts. Here is what an employer needs to check before, during, and at the end of this pivotal period.

A clause to write down, never to assume

The first reflex to have: a trial period is never presumed. It must appear explicitly in the employment contract or the letter of engagement, with a precisely stated duration. A contract silent on this point binds the trainer with no trial period, from day one — the employer then loses the option of ending the relationship under the flexible rules of a trial period, and falls back on ordinary dismissal law, which is far more constraining.

This is a formality to settle at the same time as drafting the trainer’s employment contract: build it into the organisation’s standard contract template rather than handling it case by case.

The maximum durations set by the Labour Code

For a permanent contract (CDI), Article L. 1221-19 of the Labour Code caps the initial trial period by job category:

Category	Maximum legal duration
Employees	2 months
Supervisory staff, technicians	3 months
Managers (cadres)	4 months

These are maximums: a contract can never exceed them, but a branch-level agreement can set shorter durations. This is precisely the case for the collective bargaining agreement for training organisations (IDCC 1516), which sets its own durations by classification category — and whose relevant article was recently amended. Before drafting a trainer’s contract, always check the version of that article currently in force: a contractual clause longer than what the agreement provides would not be enforceable against the employee.

The special case of fixed-term contracts

Many training organisations hire their first instructors on a CDD d’usage (fixed-term contract specific to the sector). The trial period there follows different logic, set by Article L. 1242-10 of the Labour Code: it is calculated proportionally to the length of the contract, at a rate of one day per week, capped at:

• 2 weeks for a contract initially lasting 6 months or less;
• 1 month for a contract initially lasting more than 6 months.

A collective agreement can set a shorter duration. For a trainer hired for just a few days on a one-off course, the trial period shrinks accordingly — worth keeping in mind if the contract provides for the assignment to be renewed.

Renewal: three cumulative conditions, not one fewer

Article L. 1221-21 of the Labour Code strictly frames the renewal of a CDI trial period. It is only valid if all three of the following conditions are met:

1. an extended branch-level agreement expressly allows renewing the trial period for the category concerned;
2. the employment contract or letter of engagement mentions this possibility of renewal;
3. the employee gives explicit written consent, before the initial period expires — silent or after-the-fact consent is not enough.

Miss even one of these three conditions, and the renewal is void: the trial period ends at its initial term, and the contract then continues as an ordinary permanent contract, with no way back. For a training organisation, the most common mistake is forgetting to collect the employee’s written consent before the initial trial ends, assuming a renewal clause in the contract is enough on its own.

Ending it during the trial: freedom bounded by a notice period

During the trial period, either the employer or the employee can end the contract without having to justify a reason, unlike an ordinary dismissal. This freedom is nonetheless bounded by a notice period, set out in Articles L. 1221-25 and L. 1221-26 of the Labour Code:

• on the employer’s side: 24 hours under 8 days in post, 48 hours between 8 days and 1 month, 2 weeks after 1 month in post, 1 month after 3 months in post;
• on the employee’s side: 48 hours, reduced to 24 hours if in post less than 8 days.

One classic trap is worth flagging: if the employer’s notice period runs past the end date of the trial period, the termination must still be notified before that end date — otherwise it is treated as a termination after the trial ends, meaning an ordinary dismissal, with all the justification and procedural requirements that involves. When the notice period genuinely extends beyond the end of the trial, the employer still owes compensation for the portion of notice that could not be worked.

What the research says about the trial period’s role

The trial period is not merely a legal formality: it plays a documented economic role as a sorting mechanism. A study by Eng Seng Loh, published in 1994 in the Industrial and Labor Relations Review under the title “Employment Probation as a Sorting Mechanism,” shows that trial periods act as a screening tool that lets an employer observe the real quality of the match with a candidate before committing long term, reducing the risk of costly hiring mistakes to fix once the contract has stabilised (see the study). For a training organisation hiring its first salaried trainer — often with no HR department to make the evaluation objective — this period remains the concrete opportunity to check classroom management, real teaching practice with learners, and fit with the organisation’s values, beyond the hiring interview alone.

Planning for the teaching impact of an early termination

One point specific to training organisations deserves attention: if the termination happens while the trainer is running an ongoing course, pedagogical continuity must be secured without delay — a direct concern for indicator 17 on adequate human and technical resources, which assumes the organisation can replace an instructor at short notice without degrading the quality of the course. Planning a backup from the moment of hiring — an identified substitute trainer, shared course materials — keeps a trial-period termination from turning into an incident with learners or funders.

Take action

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