Closing out a payroll year in France takes more than running December salaries. The French system layers annual declarations on top of the regular monthly cycle, introduces tax-specific obligations that only arise once a year, and handles annual leave on a reference period that does not align with the calendar year. For a foreign employer managing a French workforce, whether directly or through an outsourced payroll provider, understanding these specifics before November is the difference between a smooth close and a scramble.
This guide covers every milestone, from the preparatory checks in autumn to the final regulatory filings in late January.
Why Year-End Payroll in France Requires a Dedicated Process
Most payroll systems distinguish between routine monthly processing and the annual close. In France, that distinction is particularly sharp.
The calendar year framework (1 January: 31 December)
France uses the civil calendar year for payroll reporting. All social contributions, income tax withholding, and employment declarations are consolidated over the period from 1 January to 31 December. This means December is not merely the twelfth monthly cycle, it is the point at which all cumulative annual data must be accurate, complete, and ready for transmission to the relevant authorities.
Any error that accumulated quietly across eleven months, a misclassified benefit, a miscounted leave entitlement, a provisional payroll element left unresolved, will surface at year-end and require correction before the final DSN is filed.
The shift from monthly processing to annual consolidation
French payroll relies on the Déclaration Sociale Nominative (DSN), a monthly electronic filing that transmits cumulative employment and earnings data directly to URSSAF, pension funds, and the tax authorities. Throughout the year, each monthly DSN adds to the cumulative picture. The December DSN is therefore not a standalone filing, it is the annual consolidation, carrying the full-year totals that feed into each employee's personal tax record and the company's regulatory obligations.
This cumulative structure means that year-end preparation is genuinely a process, not a single task.
The DSN: Your Central Tool for Year-End Reporting
How monthly DSN filings build the annual picture
Every month, the DSN transmits individual employee data: gross earnings, social security contributions, income tax withheld at source (prélèvement à la source, in place since 2019), absences, and various benefit elements. These figures accumulate. By December, the DSN reflects twelve months of employment for each individual, the basis for their net fiscal statement and for the company's annual regulatory position.
The December DSN: key deadlines (5th vs 15th January)
The December payroll DSN is due in January, not December. The deadline depends on company size:
- Companies with more than 50 employees: DSN due by 5 January
- Companies with fewer than 50 employees: DSN due by 15 January
These deadlines are fixed. Building the December DSN requires that all December payroll elements, including any 13th-month payment, year-end bonuses, and benefit-in-kind adjustments, are finalised before the filing window opens.
What replaced the DADS: and why it matters
Before the DSN was rolled out nationally, employers used the DADS (Déclaration Annuelle des Données Sociales, the annual social data declaration) to report annual earnings data. The DADS has been fully replaced by the DSN. If your payroll software or any third-party reference still mentions a separate DADS filing, this is outdated: the information is now embedded in the monthly DSN cycle, and the December filing carries the annual consolidation that the DADS once handled separately.
Key Annual Declarations Beyond the DSN
Taxe sur les salaires: who owes it and when
The taxe sur les salaires (the payroll tax) is an annual payroll tax levied on employers who are not subject to VAT on all or most of their turnover. Financial institutions, certain non-profit organisations, and some holding companies are typical examples. For these employers, the tax is calculated on the gross payroll of the previous year and declared annually. If your French entity falls into this category, the declaration and payment must be scheduled as part of year-end close. If your entity is fully subject to VAT on its commercial activity, you are generally exempt, but the position should be confirmed with your payroll adviser.
Apprenticeship tax and vocational training contributions (deadline: 28 February)
Two contributions fall due shortly after the calendar year closes:
- The taxe d'apprentissage (apprenticeship tax), declared via the DSN, with the annual balance due by 28 February of the following year.
- The contribution à la formation professionnelle continue (professional training contribution), calculated as a percentage of the prior year's payroll mass, also declared via DSN.
Both are calculated on the N-1 payroll, meaning your 2025 payroll figures drive the 2026 filing. Ensuring your annual payroll totals are locked down cleanly in December simplifies these February declarations considerably.
Professional training declaration via DSN
The training contribution base is transmitted through the DSN to the relevant OPCO (Opérateur de Compétences, the sectoral skills funding body responsible for training levy management). In practice, however, the actual declaration of the contribution and the payment are handled directly on each OPCO's own portal: the employer logs into their account, files the declaration and triggers the corresponding bank transfer to the OPCO. As with the apprenticeship tax, accuracy of the annual payroll base in the DSN is the prerequisite before the OPCO-side declaration can be completed.
The 13th Month Salary: What to Decide Before December
Is it legally required? Reading your collective agreement
In France, a 13th-month salary is not a statutory requirement under the Labour Code. It is, however, extremely common, and for a significant number of employers, it is contractually or collectively mandated. The answer depends on your convention collective (collective bargaining agreement, or CBA): the sectoral agreement that governs your employment contracts.
Before December payroll runs, every employer should confirm:
- Does the applicable CBA mandate a 13th-month payment?
- If not, have any individual employment contracts committed to it?
- If it has been paid consistently in previous years without being contractually required, has it become a customary entitlement (usage d'entreprise)?
Failing to check this before November leaves insufficient time to provision the amount in payroll and communicate correctly with employees. If you are uncertain which CBA applies to your French employees, an outsourced HR partner includes this analysis as part of the onboarding.
When and how to process it on payroll
Where the 13th-month payment is due, it is typically processed on the December payslip, either as a separate line item or combined with the December salary. It is subject to the same social security contributions and income tax withholding as ordinary salary. The amount and timing must be correctly reflected in the December DSN.
Annual Leave and CP Balance at Year-End
The French holiday year: 1 June: 31 May
This is one of the most misunderstood aspects of French payroll for foreign employers. Paid leave (congés payés) in France accrues at 2.5 working days per month of employment, over a reference period running from 1 June to 31 May, not the calendar year. This means the annual leave balance does not reset on 1 January.
The practical consequence: when your accounting team closes the books on 31 December, your employees are partway through their leave year. Any provision for untaken leave must reflect the mid-year position, not an annual total.
Managing unused leave balances at 31 May vs 31 December
At 31 May, unused leave from the preceding reference year is generally lost unless it has been transferred to a compte épargne-temps (CET, a time savings account that allows employees to bank unused leave for future use, where this scheme is in place). Employees cannot simply carry over unlimited leave indefinitely. At 31 December, the accounting close should reflect accrued but untaken leave as a liability, calculated on the portion of the current reference year already elapsed (1 June to 31 December).
For employers managing RTT days (additional rest days granted under a 35-hour scheme), a separate balance calculation applies. RTT days are typically subject to an annual cap and may not carry over in the same way as congés payés.
Employee Annual Earnings Statement (Net Fiscal)
What must appear on the December payslip summary
Every employee in France receives an annual earnings summary, the net fiscal (net taxable income) statement, integrated into their December payslip or provided as a separate document. This figure represents the net taxable income reported to the tax authorities for the calendar year: gross earnings minus non-taxable elements, adjusted for any applicable deductions.
French law requires that this figure be accurate and transmitted to the Direction Générale des Finances Publiques (DGFiP, the French tax authority) via the DSN. Any discrepancy between what appears on the employee's payslip and what is declared via DSN will be flagged during the tax authority's automated reconciliation process.
How employees use it for their personal income tax return
Although France operates a PAYE system (prélèvement à la source) since 2019, employees still file an annual income tax return each spring. The net fiscal figure on their December payslip is the reference they use to verify that the correct amount has been withheld throughout the year, and to declare any additional income sources. Providing employees with a clear, accurate statement in December is therefore both a regulatory obligation and a practical service to your workforce.
Year-End Payroll Checklist for Employers in France
A structured timeline for the annual close:
By 31 October
- Confirm which collective bargaining agreement (CBA) applies and whether it mandates a 13th-month payment.
- Review all employment contracts for individual 13th-month commitments or customary entitlements.
- Identify any employees whose gross salary approaches the SMIC threshold, the annual SMIC revalorisation typically takes effect on 1 January.
During November4. Provision the 13th-month amount in November payroll if applicable, or prepare the December payslip calculation.5. Reconcile year-to-date social contribution figures with URSSAF account statements.6. Confirm that all benefit-in-kind elements (company car, meal vouchers, health cover) have been correctly valued and declared throughout the year.7. Review leave balances: confirm each employee's accrued congés payés and any RTT balance.
During December8. Process the 13th-month salary on the December payslip where required.9. Finalise any year-end variable pay elements (bonuses, commissions) and include them in the December payroll run.10. Apply any SMIC increase effective 1 January to contracts that reference the minimum wage.11. Verify that the net fiscal amount per employee is accurate before the December payslip is issued.12. Ensure all payroll data has been entered into your DSN software and that cumulative annual totals reconcile with individual monthly filings.
By 5 or 15 January (depending on company size)13. File the December DSN (5 January for 50+ employees; 15 January for fewer than 50).14. Issue the annual earnings summary (net fiscal) to all employees.
By 28 February15. Declare and pay the apprenticeship tax balance via DSN.16. Submit the professional training contribution declaration.
How an Outsourced Payroll Partner Handles Year-End for You
Year-end payroll in France is manageable, but it is detail-intensive, time-sensitive, and unforgiving of gaps in knowledge. For a foreign employer without a dedicated French HR function, the risk is not so much that the obligations are unknown; it is that they surface at the wrong moment, too late to resolve cleanly.
An outsourced payroll service absorbs the entire year-end process: DSN preparation and filing, 13th-month calculation and processing, annual declarations, and employee net fiscal statements. The December timeline is built into the service workflow, not delegated to the client to manage.
Paired with local HR advisory support, this model ensures every regulatory deadline from November through February is handled on time: CBA verification, 13th-month provisioning, leave and RTT balance controls, URSSAF reconciliation and DSN filings. The foreign employer retains full control of the contractual relationship with its employees while delegating payroll execution to a local expert.
Year-end is not the time to discover a gap in your payroll process. Building the right operational structure before October is the most effective preparation of all.
