Overtime: Premium Rates and Legal Calculation

Introduction

Overtime hours are a central issue in French labour law. Whether it's an employer seeking to optimise their salary bill or an employee wanting to know their rights, mastery of the rules of premium rates and legal calculation of overtime hours is essential. Governed by the Labour Code, these hours follow a precise regime: premium rates, annual threshold, tax and social exemptions, compensatory rest. This article provides a comprehensive overview of the entire system applicable in 2026, based on current legislation and the latest regulatory developments.

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Definition and Scope of Application of Overtime

What is an Overtime Hour?

According to Article L.3121-28 of the Labour Code, any hour worked beyond the legal weekly working duration — fixed at 35 hours — constitutes an overtime hour. This threshold is assessed on a calendar week (from Monday 00:00 to Sunday 24:00) unless a collective agreement provides for another reference period.

Note: only hours requested or accepted by the employer fall within this framework. An hour worked spontaneously, without the agreement of management, may be reclassified, but the employer cannot systematically use this argument if the hours worked were necessary for the performance of the assigned tasks.

Employees Covered and Exclusions

The overtime regime applies to full-time employees subject to the legal duration or a conventional duration of less than 35 hours. Excluded are:

• Senior executives (Article L.3111-2 of the Labour Code);

• Employees on an annual day-based forfeit (Article L.3121-58);

• Self-employed workers.

For part-time employees, hours worked beyond their contractual duration are additional hours, subject to a separate regime.

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Legal Premium Rates Applicable in 2026

The Two Tiers of Premium Rates

The legal scale for overtime premium rates is set out in Article L.3121-36 of the Labour Code:

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

• 50% premium from the 9th overtime hour onwards (from the 44th hour).

These rates constitute the legal floor. A sector-level or company agreement may provide for higher rates, but never lower ones (a sector-level extended agreement may however reduce the rate for the first 8 hours to a minimum of 10%, according to Article L.3121-33).

Concrete Calculation Example

Let's take an employee with a gross hourly wage of €15 who works 42 hours in a week:

• Normal hours (35h): 35 × €15 = €525

• Overtime hours from 36th to 42nd (7h) at +25%: 7 × €15 × 1.25 = €131.25

• Total gross for week: €656.25

If this same employee works 46 hours:

• 35 normal hours: €525

• 36th to 43rd (8h) at +25%: 8 × €15 × 1.25 = €150

• 44th to 46th (3h) at +50%: 3 × €15 × 1.50 = €67.50

• Total gross for week: €742.50

Replacement with Equivalent Compensatory Rest

The employer may, under certain conditions, replace all or part of the paid premium with a compensatory rest day for replacement (COR), in accordance with Article L.3121-37. This rest must be equivalent to the premium pay: for one hour at 25%, the rest granted is 1 hour 15 minutes; for one hour at 50%, it is 1 hour 30 minutes.

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The Annual Overtime Threshold

Definition of the Threshold

The annual threshold represents the maximum number of overtime hours an employee can work in a calendar year without prior administrative authorisation. It is set by collective agreement or, failing that, by decree.

In the absence of an agreement, the regulatory threshold is 220 hours per year (Article D.3121-24 of the Labour Code). A collective agreement may adjust this volume upwards or downwards.

Exceeding the Threshold

Hours worked beyond the threshold are possible but give rise to, in addition to the salary premium, a mandatory compensatory rest entitlement (COR):

• 50% of hours exceeding the threshold in companies with 20 or fewer employees;

• 100% in companies with more than 20 employees.

These rest entitlements must be taken within two months of their accrual and their rigorous management is now facilitated by compliant HR management tools, in particular through the digitisation of time tracking documents.

Monitoring and Traceability: The Burden of Proof

The employer is required to ensure individual tracking of working time (Article L.3171-4). In the event of a labour court dispute, the burden of proof is shared: the employee must present sufficiently precise evidence, and it is then for the employer to refute it with its own records. Digitisation and electronic signature of time sheets strengthen the evidential value of these documents, as highlighted in our comprehensive guide to electronic signatures.

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Tax and Social Regime for Overtime

Income Tax Exemption

Since the 2007 TEPA law, reaffirmed and strengthened by the law of 16 August 2022 (purchasing power law), remuneration received for overtime is exempt from income tax up to a limit of €7,500 per year (Article 81 quater of the General Tax Code).

In practice, an employee who receives €3,000 in overtime pay in a year will pay no tax on this sum, regardless of their marginal tax bracket.

Reduction of Employee Social Contributions

Overtime hours also benefit from a fixed reduction in employee social contributions (excluding employee contributions for sickness and maternity) within the limit of the amount exempt from income tax. In practice, the reduction rate applicable in 2026 is 11.31% for companies with fewer than 50 employees and 11.31% also for larger ones (harmonised rate since 2019).

Impact on SMIC Calculation and Compensation

Overtime hours are taken into account in the calculation of the SMIC (minimum wage): the employer must ensure that total remuneration, including overtime, is at least equal to the increased hourly SMIC. On the other hand, for the calculation of redundancy compensation, notice pay or holiday pay, only the regular remuneration (excluding occasional overtime) is generally retained, unless there is a more favourable agreement. The digitised management of these elements via a electronic signature solution for HR allows you to secure the entire documentary chain.

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Employer Obligations and Non-Compliance Risks

Information and Consultation of the Works Council

The employer who wishes to regularly use overtime must inform the Works Council (CSE) in companies with more than 11 employees. This information covers the anticipated volume, the departments concerned and the compensation measures.

In addition, any collective agreement modifying the threshold or premium rates must be negotiated with union representatives and filed with the DREETS (formerly DIRECCTE). The signature of these agreements is now commonly carried out in electronic format, in accordance with the eIDAS regulation which guarantees their legal value across the European Union.

Penalties for Non-Compliance

Non-payment or reduction of the premiums due constitutes a concealed work offence subject to a fine of €45,000 and up to 3 years' imprisonment for individuals (Article L.8224-1 of the Labour Code). The social security authority (URSSAF) may carry out reassessment covering the previous 3 years.

Practices such as informal "recovery" of overtime by non-formalised rest days, or the absence of precise record-keeping, expose the employer to labour court convictions with recovery of premium wages and damages.

Archiving and Document Retention

The employer is required to keep time records and pay slips for 5 years (limitation period for wage claims, Article L.3245-1). The digitisation of these documents, combined with a qualified electronic signature, guarantees their integrity and enforceability in case of inspection or dispute, as detailed in our guide on electronic signatures in business.

Legal Framework Applicable to Overtime

The overtime regime is based on a dense legislative and regulatory framework that must be understood to ensure full compliance.

Labour Code — Key Provisions

• Article L.3121-28: definition of overtime hours beyond 35 weekly hours.

• Articles L.3121-33 to L.3121-37: legal premium rates (25% and 50%), possibility of compensatory rest for replacement, role of collective agreements.

• Article L.3121-38: annual threshold and mandatory rest entitlement.

• Article D.3121-24: setting of regulatory threshold at 220 hours in the absence of an agreement.

• Article L.3171-4: obligation to track working time and evidential value of records.

• Articles L.8221-1 and L.8224-1: definition and penalties for concealed work.

• Article L.3245-1: five-year limitation period for wage claims.

General Tax Code

• Article 81 quater: exemption from income tax on overtime pay up to €7,500 per year.

Law No. 2022-1158 of 16 August 2022 (law introducing emergency measures to protect purchasing power): increase in the tax and social exemption ceiling, maintenance of the fixed reduction in employee social contributions.

Evidential Value of Electronic Documents

The digitisation of time sheets, pay slips and collective agreements falls within the framework of Regulation eIDAS No. 910/2014 (and its eIDAS 2.0 revision being transposed), which confers equivalent legal value to qualified electronic signatures and their documents throughout the European Union. Under French law, Article 1366 of the Civil Code establishes the principle of equivalence between electronic writing and paper writing, provided that the identity of the author is properly guaranteed and the document is kept under conditions ensuring its integrity. Article 1367 specifies the requirements for a reliable electronic signature.

GDPR No. 2016/679: working time data constitutes personal data. The employer is responsible for processing and must guarantee its security, minimisation and define a retention period in compliance with the law (5 years for pay slips). Any HR management or electronic signature service provider acting on behalf of the employer is a processor under Article 28 of the GDPR, bound by a documented data processing agreement.

In the event of URSSAF inspection or labour inspection, the production of intact and time-stamped electronic documents constitutes admissible and robust evidence, provided that the solution used complies with ETSI EN 319 132 standards relating to advanced electronic signature formats (XAdES, PAdES).

Use Cases: Overtime Management and Digitisation

Scenario 1 — A Manufacturing SME with 80 Employees During Peak Activity

A manufacturing SME, employing 80 operators on 2x8 shifts, faces a surge in orders in the last quarter. It plans 6 to 8 hours of overtime per week per employee for 10 weeks. Without a digitised tracking tool, the HR department is juggling between Excel spreadsheets, hand-signed paper vouchers and pay slips corrected after the fact.

By deploying an integrated time management solution coupled with an electronic signature module, the SME enables each team leader to electronically validate weekly sheets in less than 2 minutes. The data feeds directly into the payroll software, reducing data entry errors by 70% (range observed in manufacturing SMEs according to ANDRH sector reports 2024). The HR department saves approximately 15 hours of administrative processing per month.

Scenario 2 — An Engineering Consultancy with 25 Employees

An engineering consultancy employs non-executive engineers subject to the legal duration. During intense project phases, some employees regularly exceed 43 hours per week. Management must clearly distinguish between hours within the threshold and those giving rise to mandatory compensatory rest entitlements (COR).

Through a document generator and digitisation of temporary amendments, the consultancy formalises each request for overtime exceeding the threshold by a digitally signed amendment with certified time-stamping. In case of URSSAF inspection or labour court dispute, every hour is traceable and the evidential value of documents is beyond reproach. The time to process requests falls from 3 days (post, scan, return) to less than 4 hours.

Scenario 3 — A Distribution Group with 350 Employees Managing Multiple Sites

A distribution network with around ten sales points and approximately 350 employees must centralise overtime tracking on variable rosters. The multiplicity of sites and department managers generates inconsistencies in hour reporting, exposing the chain to recurring URSSAF reassessments.

Integration of a SaaS electronic signature platform allows site managers to digitally validate daily records, with automatic alerts sent when the 220 annual hours threshold approaches for an employee. Head office benefits from a consolidated real-time dashboard. Result: reduction of 85% in pay anomalies related to overtime in the first two quarters of rollout, and near-total elimination of disputes related to premium rate errors.

Conclusion

Overtime is subject to a precise legal framework: premium rates of 25% and 50%, an annual threshold of 220 hours, tax and social exemptions capped at €7,500, mandatory compensatory rest for overages. Each employer must ensure rigorous traceability of hours worked to avoid URSSAF reassessments and labour court disputes.

Digitisation of time tracking documents — weekly sheets, amendments, collective agreements — now represents the best guarantee of compliance and operational efficiency. Certyneo supports you in this transition with a B2B electronic signature solution compliant with eIDAS, specially designed for HR and legal teams.

Ready to secure the management of your HR documents? Discover Certyneo pricing and start your free trial today.