Day-Rate Employees Hired Mid-Year in France: How to Calculate Payroll
Why does hiring a day-rate employee mid-year create payroll calculation difficulties?
The annual day-rate arrangement (forfait annuel en jours), governed by Articles L.3121-58 et seq. of the French Labour Code, is a working-time arrangement reserved for autonomous executives and certain employees whose working hours cannot be predetermined. When a day-rate employee is hired during the calendar year or during the reference period, the payroll department must carry out two distinct calculations:
- The proration of remuneration for the first, incomplete month of work;
- The proration of the number of days to be worked over the remaining period.
These two operations are subject to strict rules that are often misunderstood, and any failure to observe them exposes the employer to salary back-payments and litigation before the labour court (conseil de prud’hommes). This article details the mandatory methodology, with formulas and a complete worked example. For an overview of payroll mechanisms, see our complete payroll guide.
What is the mandatory method for prorating the first month’s pay of a day-rate employee?
Contrary to the default settings of certain payroll software, the proration of the first month’s remuneration for a day-rate employee is carried out exclusively on the basis of calendar days. It is strictly prohibited to prorate on the basis of working days (jours ouvrés), business days (jours ouvrables), or the thirtieth/thirty-first rule.
The applicable formula is as follows:
Month’s pay = Monthly remuneration − (Monthly remuneration ÷ Number of calendar days in the month × Number of calendar days not worked before hiring)
This formula derives from the combined application of Article L.3242-1 (monthly salary standardisation) and Articles L.3121-58 et seq. of the French Labour Code. The use of calendar days is justified by the fact that the day-rate arrangement departs from hourly time-tracking: the reference to calendar days is the only one that is neutral and consistent with the very nature of the day-rate.
Why are the other proration methods prohibited?
The thirtieth (or thirty-first) rule is a mechanism derived from case law applicable to employees whose working time is counted in hours. Applying it to a day-rate employee would create an artificial distortion, sometimes favourable and sometimes unfavourable to the employee, depending on the actual number of calendar days in the month of hiring. Similarly, proration based on working days or business days is unsuited to the day-rate arrangement, which is based on a count of days worked and rest days over the year, and not on a weekly logic of five or six days.
The French Supreme Court (Cour de cassation) has repeatedly held that day-rate agreements must be interpreted strictly and that any calculation method not provided for by the applicable collective agreement or by law may be challenged (Cass. soc., 29 June 2011, No. 09-71.107). It is therefore imperative to adhere to the calendar-day method, the only one compliant with the applicable texts.
How to calculate the number of days to be worked over the remaining period after a mid-year hiring?
The second calculation concerns determining the number of days the employee will actually have to work between the hiring date and the end of the reference period (generally 31 December for a period aligned with the calendar year). This operation follows a mandatory five-step method (a → e) detailed below.
Step (a): determine the calendar days remaining in the period
This involves counting the total number of calendar days between the hiring date (inclusive) and the last day of the reference period (inclusive). For example, for a hiring on 15 April with a period aligned with the calendar year, one counts from 15 April to 31 December, i.e. 261 calendar days.
Step (b): deduct the weekly rest days
All Saturdays and Sundays (or the weekly rest days provided for by the collective agreement) falling within the period are then deducted. Article L.3132-1 of the French Labour Code guarantees a weekly rest of at least 24 consecutive hours, to which are added the 11 hours of daily rest, i.e. 35 consecutive hours. For our example from 15 April to 31 December, one typically identifies 74 days of weekly rest (Saturdays and Sundays).
Step (c): deduct public holidays coinciding with a normally worked day
Only public holidays falling on a normally worked day (generally Monday to Friday) are deducted. Public holidays falling on a Saturday or Sunday do not need to be deducted, since they are already neutralised in step (b). Articles L.3133-1 and L.3133-7 to L.3133-12 of the French Labour Code set out the list of statutory public holidays. For the period from 15 April to 31 December 2026, one identifies, for example, 6 public holidays falling on a working day (1 May, 8 May, 14 July, Ascension Thursday, 15 August, 1 November, 25 December depending on the year — the exact count depends on the calendar of the year in question).
Step (d): deduct the prorated paid-leave entitlements
An employee hired during the year acquires prorated paid-leave entitlements pursuant to Article L.3141-1 of the French Labour Code. These entitlements must be estimated and deducted from the number of days to be worked. For an employee hired on 15 April, the entitlements acquired over the remaining reference period are calculated on a pro rata temporis basis. If the employee has acquired no paid-leave entitlement (first year of employment without carry-over), this step may yield zero, but it must nonetheless be formalised in the calculation.
Step (e): deduct the prorated day-rate rest days
The rest days linked to the day-rate arrangement (often called “forfait RTT” or “JNT — non-worked days”) must also be prorated in relation to the remaining period. The annual number of rest days is derived from the standard formula: 365 days − 104 weekly rest days − X public holidays on working days − 25 paid-leave days − 218 days worked = Y rest days. This figure Y is then prorated according to the number of remaining calendar days relative to the total number of calendar days in the period. The result is rounded up to the nearest half-day according to the most protective practices, unless the collective agreement provides otherwise.
Final result and the solidarity day
The number of days to be worked equals: (a) − (b) − (c) − (d) − (e). If the solidarity day (journée de solidarité, Article L.3133-7 of the French Labour Code) has not yet been performed for the current period with a previous employer, +1 day must be added to the result obtained. It is up to the employer to verify this point at the time of hiring, by requesting a certificate from the employee’s previous employer.
What is the complete worked example for a hiring on 15 April with a salary of €4,000 and a 218-day arrangement?
Consider the following scenario: an autonomous executive is hired on 15 April 2026 with a gross monthly remuneration of €4,000 and an annual arrangement of 218 days over a period aligned with the calendar year (1 January – 31 December).
Calculation of April’s pay
April has 30 calendar days. The employee did not work from 1 to 14 April, i.e. 14 calendar days not worked.
April pay = 4,000 − (4,000 ÷ 30 × 14) = 4,000 − 1,866.67 = €2,133.33
Calculation of the number of days to be worked from 15 April to 31 December
(a) Calendar days from 15 April to 31 December: 261 days
(b) Weekly rest days (Saturdays and Sundays): 74 days
(c) Public holidays on working days (1 May, 8 May, Ascension, 14 July, 15 August, 1 November, 25 December): 7 days (the exact count varies according to the 2026 calendar)
(d) Prorated paid-leave entitlements acquired: an employee hired on 15 April has not yet acquired paid-leave usable in the current period. We retain 0 days (or the number of carried-over days, if applicable).
(e) Prorated day-rate rest days: over the full year, the number of rest days is, for example, 10 days. Proration: 10 × (261 ÷ 365) = 7.15 days, rounded to 7.5 days.
Result: 261 − 74 − 7 − 0 − 7.5 = 172.5 days to be worked.
If the solidarity day has not been performed: 172.5 + 1 = 173.5 days.
This calculation must be formalised in a document annexed to the employment contract or in an amendment (avenant), in order to secure the contractual relationship and to allow rigorous monitoring of the count of days worked. Use our day-rate simulator to automate this calculation.
What are the most common errors employers make in this proration?
Litigation relating to the day-rate arrangement in the case of mid-year hiring reveals recurring errors, which we list below along with the associated legal risks:
1. Use of the thirtieth rule for the first month’s pay. This is the most frequent error. It results in a pay amount different from the correct amount, sometimes in the employee’s favour, sometimes to their detriment. In both cases, the employee may claim a salary back-payment on the basis of Article L.3242-1 of the French Labour Code, with a three-year limitation period (Article L.3245-1).
2. Omission of the proration of rest days. Some employers grant the full annual rest days to an employee hired during the year, which artificially reduces the number of days worked and may cause difficulties in the event of a subsequent departure (adjustment on the final settlement).
3. Proration of days to be worked on the basis of working days rather than calendar days. The (a) → (e) method requires starting from calendar days. Starting from working days distorts the entire downstream calculation.
4. Failure to account for the solidarity day. Overlooking the solidarity day is common in the case of mid-year hiring, whereas the employee has not always performed this day with their previous employer. Article L.3133-7 of the French Labour Code nonetheless requires it to be performed annually.
5. Absence of a written record of the calculation. As the day-rate agreement is a solemn act requiring the employee’s express consent (Cass. soc., 31 January 2012, No. 10-17.593), the proration of the day-rate arrangement in the case of mid-year hiring must be recorded in writing, ideally in the employment contract or in an amendment.
How to reconcile day-rate proration with DSN reporting obligations?
The nominative social declaration (déclaration sociale nominative, DSN) requires the monthly declaration of the number of days worked by the day-rate employee. In the case of mid-month hiring, the first DSN must reflect:
- The remuneration prorated in accordance with the formula described above;
- The number of days actually worked over the incomplete month;
- The prorated annual arrangement applicable to the employee.
It is essential to verify the payroll software’s settings on these three points, as DSN anomalies may trigger requests for explanations from URSSAF or the supplementary pension fund. For a deeper look at the payroll mechanisms linked to the day-rate arrangement, see our payroll guide.
What are the applicable reference texts?
The legal framework for the day-rate arrangement in the case of mid-year hiring rests on the following texts:
- Articles L.3121-58 et seq. of the French Labour Code: general regime of the annual day-rate arrangement;
- Article L.3242-1 of the French Labour Code: monthly salary standardisation;
- Article L.3132-1 of the French Labour Code: weekly rest;
- Article L.3133-1 of the French Labour Code: list of statutory public holidays;
- Articles L.3133-7 to L.3133-12 of the French Labour Code: solidarity day;
- Article L.3141-1 of the French Labour Code: paid leave.
The employer must also refer to the industry-wide or company collective agreement establishing the day-rate arrangement, which may provide for specific proration methods, provided they are at least as favourable as the statutory provisions.
FAQ — Frequently asked questions on the payroll of a day-rate employee hired mid-year
Does calendar-day proration also apply in the case of departure mid-month?
Yes. The calendar-day proration method is symmetrical: it applies both on arrival and on departure mid-month. The final settlement must be calculated using the same formula, retaining the number of calendar days actually worked in the last month.
What happens if the employee exceeds the prorated number of days?
If the employee works more days than the prorated arrangement, the excess days must be handled in accordance with the provisions of Article L.3121-59 of the French Labour Code: the employee may, with the employer’s agreement, waive part of their rest days in exchange for a salary increase of at least 10%, formalised in an amendment to the employment contract.
Can the employer apply a different proration method provided for by a collective agreement?
A collective agreement may provide for specific proration methods, provided they are at least as favourable as the statutory method. However, calendar-day proration of the first month’s pay remains the only method compliant with the provisions of Article L.3242-1 of the French Labour Code. The collective agreement cannot derogate from it to the employee’s detriment.
How to handle absences of a day-rate employee hired mid-year?
Absences occurring after hiring are deducted from the prorated arrangement according to the same rules as for an employee present all year. Each day of absence (sickness, unpaid leave, etc.) reduces the number of days to be worked by one unit and gives rise to a salary deduction calculated on the basis of the daily salary (monthly remuneration ÷ 21.67 average working days, or according to the applicable collective method).
Must a summary document be provided to the employee?
Article L.3121-65 of the French Labour Code requires the employer to establish a control document showing the number and dates of the days or half-days worked. In the case of mid-year hiring, this document must indicate the applicable prorated arrangement and the tracking of days worked from the hiring date.
For any question relating to the management of a day-rate employee’s payroll, please do not hesitate to contact our firm. You may also use our online day-rate simulator to obtain an instant calculation.