Overtime: Remuneration and Legal Calculation

Overtime is one of the most sensitive subjects in French labour law. Every year, the labour inspection service identifies thousands of breaches related to incorrect application of remuneration rules or inaccurate recording of working time. Yet the French Labour Code is precise: as soon as an employee exceeds the legal duration of 35 hours per week, mandatory uplifts apply. In this article, we examine in detail the regime applicable to overtime — its definition, calculation, uplift rates, annual quota and social and tax exemptions in force — so that you can manage your company in full compliance.

Definition and triggering of overtime

What is an hour of overtime?

According to article L3121-28 of the French Labour Code, overtime comprises all hours of work performed beyond the legal weekly duration set at 35 hours. This legal duration is calculated over the calendar week, which begins on Monday at 00:00 and ends on Sunday at 24:00, unless a collective agreement provides for a different arrangement.

It is important to distinguish overtime from supplementary hours, which concern exclusively part-time employees working beyond the duration provided for in their contract, without exceeding 35 hours. Confusion between these two notions is frequent and can lead to disputes at the employment tribunal.

Who decides whether overtime is worked?

Overtime is carried out at the employer's request, whether explicit or implicit. An employee cannot, in principle, impose overtime on themselves and then claim remuneration for it — unless the employer was aware of it and did not object (consistent case law of the Court of Cassation, notably Cass. soc. 5 May 2021, no. 19-14.295).

The burden of proof for overtime is shared: the employee must support their claim with sufficiently precise details (badge records, late emails, schedules) and the employer must respond with its own elements of working time control.

Calculation of overtime and uplift rates

Legal uplift rates

In the absence of a collective agreement or company agreement providing for more favourable provisions, the legal uplift rates applicable are as follows (article L3121-36 of the French Labour Code):

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

• 50 % for hours worked beyond that (from the 44th hour onwards)

A collective agreement or sectoral agreement may lower the rate of the first band to a minimum of 10 %, but may never provide for a lower rate.

How to calculate remuneration in practice?

The calculation is based on the employee's gross hourly rate. For an employee paid on a monthly basis, the hourly rate is calculated as follows:

Hourly rate = Gross monthly salary ÷ (Monthly reference duration in hours)

The monthly reference duration for a full-time employee working 35 hours/week is 151.67 hours (35 hours × 52 weeks ÷ 12 months).

Concrete example: An employee receives £2,500 gross per month. Their hourly rate is 2,500 ÷ 151.67 = £16.48 gross/hour. If they work 4 hours of overtime in the week:

• 4 × 16.48 × 1.25 = £82.40 gross of uplift due.

Replacement of uplift with compensatory rest

Article L3121-33 of the French Labour Code permits, subject to a collective agreement, the replacement of all or part of the payment of overtime (and the associated uplift) with a replacement compensatory rest (RCR). This rest must be taken within 12 months of the right arising and cannot be unilaterally imposed by the employer without a collective agreement.

The annual overtime quota

Definition and legal threshold

The annual quota represents the volume of overtime that the employer can require its employees to work without having to seek authorisation from the labour inspection service, but whilst still respecting the obligation to inform the Works Council (CSE). In the absence of a collective agreement, the legal reference quota is set by decree at 220 hours per year per employee (article D3121-24 of the French Labour Code).

A sectoral or company agreement may modify this quota upwards or downwards. In certain sectors (construction, hospitality and catering), it can reach 300 to 400 hours.

Beyond the quota: mandatory compensatory rest (COR)

Any hour of overtime worked beyond the annual quota gives rise, for the employee, to mandatory compensatory rest (COR). This compensation is fixed at:

• 50 % of overtime hours worked beyond the quota in companies with 20 employees or fewer

• 100 % in companies with more than 20 employees

The omission of COR exposes the employer to significant tribunal penalties, as it is treated as additional remuneration due as of right.

To effectively manage the monitoring of working time and the digitisation of associated HR documents, electronic signature solutions for HR allow you to secure amendments to employment contracts and time-working modulation agreements.

Tax and social exemptions: the Fillon/TEPA scheme

Income tax exemption

Since the law of 21 August 2007 (the so-called TEPA law), reaffirmed and strengthened by the law of 16 August 2022 (law introducing emergency measures for the protection of purchasing power), remuneration paid for overtime benefits from an income tax exemption capped at £7,500 per year (article 81 quater of the French General Tax Code).

This exemption applies to the gross remuneration of overtime, including the uplift. It is automatic and requires no particular action by the employee.

Reduction in employee social contributions

In parallel, employees benefit from a reduction in social contributions on overtime, calculated at a rate of 11.31 % (as at 1 January 2024) on the gross remuneration of these hours, within the limit of old-age insurance contributions payable. This reduction can represent a significant net financial advantage for employees.

Employer forfeit deduction

On the employer's side, a forfeit deduction of employer contributions also applies, subject to conditions. For companies with fewer than 20 employees, this deduction is fixed at £1.50 per hour of overtime worked. For companies with 20 employees or more, the deduction was abolished in 2012.

These exemption mechanisms require rigorous traceability of hours worked. Payslips must distinctly mention overtime and its increased remuneration, which makes a reliable time-tracking system essential. The digitisation of payslips and associated documents, governed by the complete guide to electronic signature, can considerably simplify this management.

Employer obligations and risks of non-compliance

The obligation to record working time

Article L3171-4 of the French Labour Code requires all employers to establish a system for recording the duration of work of each employee. This obligation has been strengthened since the CJEU judgment of 14 May 2019 (case C-55/18, CCOO v Deutsche Bank), which requires a system that is objective, reliable and accessible to measure daily working time.

The absence of such a system constitutes a breach noted by the labour inspection service and can result in:

• Administrative fines of up to £1,500 per employee concerned

• Requalification of work arrangements with wage recovery over 3 years

• Damages at the employment tribunal in the event of an individual dispute

Maximum durations not to be exceeded

Independently of overtime, the employer must ensure compliance with the maximum working durations provided for in the French Labour Code:

• 10 hours per day (with possible derogations up to 12 hours)

• 48 hours per week (absolute maximum)

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

Failure to comply with these thresholds exposes the employer to criminal sanctions (class 4 misdemeanour, i.e. £1,500 per employee and per breach).

Collective agreements and flexibility of work organisation

Sectoral collective agreements or company agreements play a central role in modulating the rules relating to overtime. The Labour Law of 8 August 2016 established the primacy of the company agreement over the sectoral agreement in many areas, including the uplift rate for overtime (minimum of 10 %), the annual quota and the compensatory rest regime.

The negotiation and signature of such company agreements require a formalised process. Electronic signature in the company offers a secure solution for concluding these collective agreements in compliance with legal requirements, with probative value recognised before the labour courts.

Legal framework applicable to overtime

The legal regime for overtime in France is based on a dense body of rules at several levels.

French Labour Code:

• Article L3121-28: definition of overtime (hours worked beyond the legal duration of 35 hours)

• Article L3121-33: possibility of replacing payment with compensatory rest, under a collective agreement

• Article L3121-36: legal uplift rates (25 % and 50 %)

• Article L3121-30: annual overtime quota

• Articles D3121-24: setting of the legal quota at 220 hours by decree

• Article L3171-4: obligation to record working time

• Articles L3121-37 to L3121-40: mandatory compensatory rest beyond the quota

French General Tax Code:

• Article 81 quater of the CGI: income tax exemption on overtime remuneration, limited to £7,500 per year, derived from the law of 21 August 2007 and confirmed by the law of 16 August 2022

French Social Security Code:

• Article L241-17 et seq.: reduction in employee social contributions on overtime at a rate of 11.31 % (as at 1 January 2024)

• Employer forfeit deduction of £1.50/hour for companies with fewer than 20 employees

European and national case law:

• CJEU, 14 May 2019, C-55/18 (CCOO v Deutsche Bank): obligation for all employers to establish an objective and reliable system for recording daily working time

• Court of Cassation, Social Chamber, 5 May 2021, no. 19-14.295: shared burden of proof in matters of overtime

Obligations and risks for the employer: Any failure to pay or correctly calculate overtime constitutes concealed work offence (article L8221-5 of the French Labour Code) if intentionality is established, subject to 3 years' imprisonment and a fine of £45,000. The limitation period for wage recovery is 3 years (article L3245-1 of the French Labour Code). Employee representatives and union delegates have a specific right of alert in the event of exceeding the annual quota, and the Works Council must be consulted before any recourse to overtime beyond this quota.

Concrete usage scenarios

Scenario 1: An SME manufacturing business at peak production

An SME in the manufacturing sector with approximately 80 employees faces an exceptional order requiring a temporary increase in pace over 6 weeks. The company decides to use overtime for 40 operators, at a rate of 6 hours of overtime per week and per employee.

Calculation: 6 hours × 25 % uplift × 6 weeks = 36 hours of uplifted overtime per employee over the period. On the basis of an average gross hourly rate of £14, the additional cost per employee is 36 × 14 × 1.25 = £630 gross. For 40 employees: £25,200 gross additional labour cost.

Thanks to the employer forfeit deduction (£1.50 × 36 hours × 40 employees = £2,160) and the employee social contribution exemption, the SME achieves a net saving of approximately 15 to 20 % on these remuneration costs compared to temporary recruitment. Amendments to temporarily modify the work pace are signed electronically, reducing the time to collect signatures from 5 days to less than 24 hours.

Scenario 2: An accounting firm during the tax season

An accounting firm with 25 employees experiences intense work overload every year between March and June (year-end closures, tax filings). Employees regularly work between 8 and 12 hours of overtime per week over this period.

The firm, which has negotiated a substitution agreement with its employee representatives, opts for replacement compensatory rest (RCR) rather than immediate payment. The accountants recover 3 to 4 days of rest in July-August, the quiet period for the firm. This arrangement allows the firm to save immediate cash flow estimated at £35,000 per financial year whilst retaining its teams through an in-kind benefit valued by employees. RCR agreements are formalised and signed via a qualified electronic signature solution, guaranteeing their enforceability in the event of an employment tribunal dispute.

Scenario 3: A logistics company managing a tight quota

A logistics company with approximately 150 employees, including 90 drivers and warehousemen, approaches each year the threshold of 200 hours of overtime per employee (out of 220 allowed) during the festive periods. To avoid exceeding the quota and the associated mandatory compensatory rest (COR) — which would represent 100 % of hours exceeding the quota for a company of this size — the HR Director establishes real-time monitoring dashboard.

When an employee approaches 200 hours, the system automatically alerts the manager to redistribute the workload. This rigorous monitoring, coupled with the digitisation of schedules and time-working modulation documents via tools compliant with the requirements of eIDAS 2.0 Regulation, allows the company to avoid an estimated cost of £18,000 in COR over the year, whilst remaining compliant with the Works Council information obligations.

Conclusion

The regime for overtime in France is both protective for employees and constraining for employers. Mastering the calculation of uplift rates (25 % and 50 %), respecting the annual quota of 220 hours, exploiting available tax and social exemptions, and formally documenting collective agreements are imperatives that determine your company's compliance with labour law.

Digitisation plays an increasing role in managing these obligations: amendments, compensatory rest agreements, working time monitoring documents — all these acts can be signed and archived securely and enforceable. Certyneo supports you in this transformation with an eIDAS-compliant electronic signature solution, specially designed for the needs of HR and legal teams.

Ready to secure your HR processes? Discover Certyneo's offers and start digitising your working time management documents today.