Overtime: Allowance and Legal Calculation

Introduction

Overtime hours are one of the most sensitive subjects in French labour law. Between calculating the annual allowance, applicable allowance rates and recent tax and social exemptions, both employers and employees sometimes struggle to find their way. A calculation error can expose the company to URSSAF adjustments or costly industrial tribunal disputes. This article reviews the legal framework in force in 2026, the calculation methods to apply and best practices to adopt to secure the management of overtime in your organisation.

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Definition and General Framework of Overtime

What is an Overtime Hour?

An overtime hour is any hour of actual work performed beyond the legal weekly duration of 35 hours (article L. 3121-28 of the Labour Code). It is distinct from supplementary hours, reserved for part-time employees, and standby duties, which are subject to a different regime.

The count is made on a calendar week basis (Monday 00:00 to Sunday 24:00), unless a collective agreement provides for another reference framework, in particular in case of annualisation of working time.

The Annual Overtime Allowance

The annual allowance represents the maximum volume of overtime hours that an employer can impose on an employee without authorisation from the labour inspectorate. Since the law of 20 August 2008, this allowance is set by company or sector collective agreement. In the absence of an agreement, it is set at 220 hours per year (decree n° 2004-1381).

Beyond the allowance, the employer must:

• Obtain the opinion of the social and economic committee (CSE);

• Provide a mandatory rest allowance (COR), the rate of which is 50% for companies with 20 employees or fewer, and 100% beyond.

Maximum Durations Not to Exceed

Even in the presence of overtime hours, absolute maximum durations apply:

• 10 hours of actual work per day (except derogation);

• 48 hours per week (absolute maximum);

• 44 hours on average over a period of 12 consecutive weeks.

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Calculation of Overtime Allowances

Legal Allowance Rates

In the absence of a collective agreement, the Labour Code (article L. 3121-36) sets the following allowance rates:

• 25% for the first 8 overtime hours per week (from the 36th to the 43rd hour);

• 50% from the 44th hour per week onwards.

A company or sector agreement may lower these rates, with a floor of 10%, or conversely raise them. It is therefore essential to check the applicable collective agreement before any calculation.

Practical Calculation Method

The basic hourly rate (THB) serves as the starting point. It is obtained by dividing the gross monthly remuneration by the number of reference monthly hours (151.67 hours for a full-time 35h/week basis).

Calculation Example:

• Gross monthly salary: €2,500

• THB = 2,500 / 151.67 = €16.48 / hour

• Overtime hour at 25%: 16.48 × 1.25 = €20.60

• Overtime hour at 50%: 16.48 × 1.50 = €24.72

This calculation applies to all remuneration elements of a general and permanent nature (basic salary, seniority bonuses, etc.), excluding reimbursement of professional expenses.

Replacement of Payment by a Replacement Rest Allowance

Article L. 3121-33 of the Labour Code permits the replacement of increased payment by a replacement rest allowance (RCR), provided that a collective agreement provides for it, or failing that, with the agreement of the employee. The RCR must be equivalent in value: one overtime hour with 25% allowance gives entitlement to 1h15 of rest.

This option is particularly popular in companies wishing to limit payroll while retaining employees through additional free time. The electronic signature for HR facilitates the formalisation of these individual and collective agreements, ensuring complete traceability of consents.

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Tax and Social Exemptions in 2026

The "Work, Employment, Purchasing Power" Scheme (TEPA)

Arising from the TEPA law of 21 August 2007, renewed and strengthened by the law of 16 August 2022 (article 2), the exemption scheme continues to apply in 2026:

• Income tax exemption: remuneration paid for overtime hours is exempted up to an annual limit of €7,500 gross (limit applicable since 1 January 2019);

• Reduction in employee contributions: reduction rate set at 11.31% (common law rate, which may vary according to the fund);

• Deduction of employer contributions: applicable only to companies with fewer than 20 employees, at the rate of €1.50 per overtime hour.

These benefits constitute a powerful lever to encourage overtime without excessively increasing the cost for the employer or the tax burden for the employee.

Conditions of Application and Vigilance

The exemption does not apply to:

• Fictitious overtime hours (absence of actual work);

• Hours worked under a part-time contract (supplementary hours regime);

• Where collective working time has been reduced to benefit from the scheme (anti-abuse clause).

URSSAF regularly checks the consistency between DSN declarations and working time registers. A rigorous time tracking system, coupled with electronic signature tools in the company to validate time sheets, considerably reduces the risk of adjustment.

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Documentary Obligations and Working Time Monitoring

The Hours Register and the DSN

The employer is required to maintain a precise record of the actual working hours of each employee (article L. 3171-4 of the Labour Code). This record may take the form of:

• An electronic clocking system;

• Weekly time reports signed by the employee;

• A time management software.

Overtime hours must be declared in the DSN (Nominative Social Declaration) with the appropriate remuneration nature codes. A coding error may result in the URSSAF refusing the exemption.

Formalisation of Agreements and Amendments

Any modification to working time, any agreement on the replacement of payment by rest or on exceeding the allowance must be formalised in writing. Tools for electronic signature compliant with the eIDAS regulation make it possible to secure these documents legally, guarantee their integrity and prove the informed consent of both parties.

To go further in HR dematerialisation, the comprehensive guide to electronic signature details the signature levels suited to each type of document.

Time Management in Modulation and Annualisation Agreements

In companies that have implemented annualisation of working time (article L. 3121-41 et seq.), overtime hours are no longer counted on a weekly basis but at the end of the reference period (generally the calendar year). Hours exceeding 1,607 annual hours (annual legal duration) are then classified as overtime hours and give rise to corresponding allowances and exemptions.

This complex organisation requires reliable reporting tools. Integrated SaaS HR management solutions, such as those compatible with electronic signature solutions for HR, allow you to automate these calculations and reduce the risk of human error.

Legal Framework Applicable to Overtime

The regulation of overtime in France is based on a dense body of legislation and regulations, linking national labour law and communitarian principles.

Labour Code:

• Article L. 3121-28: defines overtime as any hour worked beyond 35 hours per week;

• Article L. 3121-33: regulates the replacement of payment by a replacement rest allowance;

• Article L. 3121-36: sets the legal allowance rates (25% and 50%) in the absence of a collective agreement;

• Article L. 3121-41 et seq.: govern the methods of annualisation of working time;

• Article L. 3171-4: requires the maintenance of a record of actual working hours.

Regulatory Texts:

• Decree n° 2004-1381 of 20 December 2004: sets the supplementary annual allowance at 220 hours;

• Decree n° 2021-1246: clarifies the methods of reduction of employee contributions on overtime hours.

Founding Laws:

• Law n° 2007-1223 of 21 August 2007 (TEPA law): establishes income tax exemption and reduction of contributions;

• Law n° 2008-789 of 20 August 2008: reforms the allowance and opens the way for collective agreements on working time arrangements;

• Law n° 2022-1158 of 16 August 2022 (purchasing power law): maintains and adapts TEPA exemptions for 2022-2026.

European Directive:

• Directive 2003/88/EC of the European Parliament and of the Council of 4 November 2003 concerning certain aspects of the organisation of working time: imposes maximum durations (48 hours/week on average), daily rest of 11 consecutive hours and weekly rest of 35 hours, to which overtime must comply.

Legal Risks for the Employer: Failure to correctly pay or allow overtime exposes the employer to an action for recovery of wages before the industrial tribunal (limitation period of 3 years), as well as to an URSSAF adjustment which may include late payment penalties (between 5% and 10%) and fines. In case of concealed work (article L. 8221-5 of the Labour Code), criminal sanctions may reach 3 years imprisonment and €45,000 fine. The formalisation in writing and traceability of all agreements relating to working time is therefore an elementary obligation of prudence.

Usage Scenarios: Overtime Management in Companies

Scenario 1 — An Industrial SME with Seasonal Activity Peaks

An SME in the manufacturing sector employing about 80 employees faces recurring production peaks from September to November. Without a modulation agreement, overtime hours accumulate rapidly beyond the legal allowance of 220 hours for several operators. By implementing an annualisation agreement signed electronically by representatives of the workforce and validated by all employees concerned via a dematerialised signature platform, the company reduces the number of weeks exceeding 43 hours. Result: the cost of 50% allowances decreases by around 30% over the year, and the administrative formalities related to CSE consultation are traced and archived in less than 48 hours instead of 5 working days.

Scenario 2 — An Accounting Firm in Tax Season

A firm comprising fifteen employees sees its teams carry out between 15 and 20 hours of overtime per week from January to May. Management decides to opt for replacement of payment by a replacement rest allowance (RCR) to limit cash flow impact. Each individual RCR agreement is submitted to the employee via a SaaS electronic signature platform, which automatically generates pre-filled documents and preserves evidence of consent. Administrative processing time falls from 3 days to less than 2 hours per monthly cycle, and the firm eliminates any risk of later challenge to employee agreement.

Scenario 3 — A Multi-Site Retail Group Facing URSSAF Inspection

A retail chain with around thirty outlets and approximately 400 employees is subject to URSSAF inspection concerning the application of TEPA exemptions. The inspector requests justification of overtime hours declared in the DSN for the previous 36 months. Thanks to a system of weekly time reports signed electronically by each site manager and archived in the digital safe of the platform, the company produces all evidence in less than 24 hours. No adjustment is imposed. For comparison, a similar company without a digital traceability system had undergone, in an analogous case published by URSSAF in its annual report, an average adjustment of €45,000 plus late payment penalties.

Conclusion

The management of overtime in France requires precise knowledge of the calculation rules, applicable allowance rates and exemption schemes in force. Between the 220-hour allowance, the 25% and 50% allowance thresholds and the €7,500 tax exemption limit, each parameter counts. Added to this is a stringent documentary obligation: all agreements, amendments or time records must be formalised, signed and retained in a reliable manner.

Certyneo helps you secure this administrative management through electronic signature solutions compliant with eIDAS, designed for HR teams and general management. Automate the signature of your modulation agreements, your forfeit conventions and your overtime time records. Discover our rates and start for free on certyneo.com.