How to Create a Compliant Payslip in 2025: Complete Guide

Introduction: The Importance of a Compliant Payslip

The payslip is the central document in the employment relationship between the employer and the employee. It reflects the executed employment contract, details the compensation paid, and outlines the contributions deducted. In 2025, regulatory requirements have further evolved, particularly with the consolidation of the montant net social (MNS) and the interim simplified payslip model being maintained until December 31, 2026. For HR departments and payroll managers, mastering these obligations is essential to avoid labor disputes and URSSAF assessments.

This complete guide will walk you through the steps to create a payslip that complies with the provisions of the Labour Code, the BOSS (Official Bulletin of Social Security), and applicable decrees. We will cover each section of the payslip, mandatory mentions, the calculation of the MNS, the tax section for withholding at source (PAS), and retention obligations.

Mandatory Mentions on the Payslip (Article R.3243-1 of the Labour Code)

Article R.3243-1 of the Labour Code exhaustively lists the mentions that must appear on the payslip. The BOSS, in its section dedicated to the payslip, reiterates and clarifies these obligations. Here are the essential elements:

Employer Identification Area

This section must include:

• The name and address of the employer, or the name of the establishment and its address
• The SIRET number of the establishment
• The APE code (main activity performed)
• The reference of the organization to which the employer pays social security contributions (relevant URSSAF)
• The applicable collective agreement or, if none, the reference to the Labour Code for provisions related to paid leaves and notice periods

In practice, most payroll software automatically fills in this information based on the initial setup of the business. However, it is crucial to regularly verify their accuracy, especially in the event of a change in address, APE code, or collective agreement.

Employee Identification Area

The employee-related information includes:

• The name and surname of the employee
• The position held and the contractual classification (level, step, coefficient)
• The period and number of hours of work corresponding to the remuneration, distinguishing between normal hours and overtime (with indication of the applicable increase rate)
• The nature of the salary calculation base when it is not the duration of work

Gross Remuneration Area

Gross remuneration includes all the components of the salary. The BOSS specifies that the following must be distinctly itemized:

• The base salary
• Bonuses and incentives (seniority bonus, 13th month, performance bonus, etc.)
• Benefits in kind assessed according to applicable scales
• Overtime hours with their increase rate
• Salary maintenance in case of absence (sickness, maternity, etc.)
• Paid leave indemnity

Concrete Example: An executive employee with a monthly base salary of €3,500, a seniority bonus of €175, and a vehicle benefit valued at €350 will have a gross remuneration of €4,025.

The Social Contributions Area

The simplified payslip, for which the provisional model is maintained until December 31, 2026, groups contributions into major blocks for easier reading. The lines of contributions must indicate:

Employee and Employer Contributions

The payslip must indicate, for each contribution or group of contributions:

• The contribution base
• The employee rate and the employer rate
• The employee amount and the employer amount

The major blocks of the simplified payslip are as follows:

1. Health: supplementary health, insurance
2. Occupational accidents – Occupational diseases
3. Pension: capped and uncapped social security, complementary (Agirc-Arrco)
4. Family
5. Unemployment insurance
6. CSG/CRDS: deductible CSG, non-deductible CSG, CRDS
7. Other employer contributions: vocational training, apprenticeship tax, etc.

Social Security Ceiling

In 2025, the monthly social security ceiling (PMSS) is set at €3,925. This ceiling conditions the calculation of numerous contributions (capped base pension, Agirc-Arrco tranche 1, etc.). It must be prorated for part-time work or for employees starting or leaving during the month.

Example: For an employee at 80%, the prorated monthly ceiling is €3,925 x 0.80 = €3,140.

The Montant Net Social (MNS): A Mandatory Mention Since 2024

Established by the decree of January 31, 2023 and mandated on all payslips since January 1, 2024, the montant net social is an essential figure for employees, especially for procedures with the CAF and France Travail.

Definition and Calculation of the MNS

According to the BOSS, the montant net social is defined as follows:

MNS = Total gross remuneration – Mandatory social contributions and contributions borne by the employee

The elements included in gross remuneration for the calculation of the MNS are:

• Base salary
• Bonuses (seniority, 13th month, performance, etc.)
• Benefits in kind (meals, housing, vehicle, NTIC)
• Salary maintenance during a leave (sickness, maternity)
• Overtime and complementary hours
• Paid leave indemnity
• Daily social security allowances (IJSS) paid by subrogation

The elements not included (excluded from gross remuneration for the MNS) are:

• Reimbursement of professional expenses (kilometric allowances, transport reimbursements, etc.)
• Daily social security allowances paid directly to the employee by the CPAM (without subrogation)
• Exempt social benefits (vacation vouchers within the exemption limit, etc.)

Numeric Example of MNS Calculation

Consider a non-executive employee with the following elements:

• Base salary: €2,500
• Seniority bonus: €125
• Meal benefit: €5.45 x 20 days = €109
• Transport reimbursement: €45 (excluded from the MNS)

Gross remuneration for the MNS: 2,500 + 125 + 109 = €2,734

Mandatory employee contributions: approximately 22% of 2,734 = €601.48

MNS = 2,734 – 601.48 = 2,132.52 €

This amount must appear on a dedicated line on the payslip, clearly identified under the label “Montant net social”.

The Net Pay Before and After Withholding at Source (PAS)

Net Pay Before Tax on Income

Net pay before PAS corresponds to the amount the employee would receive if there were no tax withholding. It is calculated as follows:

Net to pay before PAS = Gross remuneration – Total employee contributions + Expense reimbursements – Benefits in kind (withholding)

Tax Section for Withholding at Source

The BOSS reminds that the tax section related to PAS is mandatory on the payslip, even when amounts are zero (for example, for an employee whose PAS rate is 0%). This section must indicate:

• The base for PAS (taxable net income)
• The applied rate (personalized rate, neutral rate, or individualized rate)
• The amount of PAS withheld

Example: For a taxable net of €2,200 and a personalized rate of 7.5%, the amount of PAS will be €2,200 x 7.5% = €165.

Net Pay to the Employee

The final net pay is calculated as:

Net to pay = Net before PAS – PAS withheld

In our example: 2,200 – 165 = €2,035 (amount transferred to the employee).

The Simplified Payslip Model: Extended Until December 31, 2026

The provisional model of the simplified payslip, introduced to clarify the payslip for employees, has been extended until December 31, 2026. This model groups contributions into major categories and simplifies the presentation while retaining all mandatory mentions.

The main advantages of this model are:

• Improved readability for the employee
• Logical grouping of contributions by risk covered
• Display of total employer cost (optional but recommended)
• Native integration of the montant net social

Payroll software providers have integrated this model into their solutions. However, it is advisable to regularly verify the compliance of payslip templates, especially during annual setup updates.

Retention of Payslips: A 5-Year Minimum Obligation

Employers are required to retain a copy of payslips for 5 years (Article L.3243-4 of the Labour Code). This retention can be in paper form or in electronic form, provided that the integrity, availability, and confidentiality of the documents are ensured.

Since January 1, 2017, employers may provide payslips electronically, unless the employee objects. In this case, they must ensure the availability of the payslip for 50 years or until the employee turns 75, using a secure digital vault compliant with applicable regulations.

Points of Caution:

• In the event of URSSAF checks, payslips must be produced for the audited period (generally 3 years + current year)
• In case of labor disputes, the employee may produce their payslips as evidence without a time limit
• Failure to deliver the payslip incurs a fine of €450 per missing payslip

Common Mistakes to Avoid

Here are the most frequently observed errors during our payroll compliance audits:

1. Omission of the MNS mention: since 2024, this mention is mandatory on all payslips. Its absence may lead to a dispute with the employee.
2. Missing PAS section when the amount is zero: the BOSS is explicit; the section must appear even if the amount withheld is €0.
3. Incorrect prorating of the social security ceiling: for part-time cases or employees starting/leaving mid-month, the ceiling must be adjusted.
4. Incorrect or missing collective agreement: the IDCC and title of the agreement must be included on each payslip.
5. Benefits in kind not valued: benefits in kind must be assessed and appear in both gross and net withholdings.

Summary Table of Payslip Areas for 2025

For a synthetic view, here are the major areas of a compliant payslip:

• Header: employer + employee identification + period
• Body: detailed gross remuneration + contribution blocks
• Summary: total gross, total employee contributions, MNS, taxable net, PAS, net to pay
• Footer: annual totals, mention of retention, mention of net-enterprises portal

FAQ: Your Questions on Compliant Payslips in 2025

Must the montant net social appear on the payslip even if the employee does not receive social benefits?

Yes, the montant net social (MNS) is a mandatory mention on all payslips since January 1, 2024, regardless of the employee’s profile. This requirement stems from the decree of January 31, 2023. The MNS allows the employee to declare their income to the CAF or France Travail more easily. Its absence on the payslip constitutes a breach of the employer’s legal obligation.

Should the PAS section be included if the employee has a 0% rate?

Yes, the tax section related to withholding at source is mandatory even when the amounts are zero. The BOSS explicitly states this obligation. The payslip must indicate the base, the rate (even at 0%), and the amount (even at €0). This mention enables the employee to verify that their rate is correctly applied and to ensure that no parameterization errors exist.

How long must the employer retain payslips?

The employer must retain a copy of the payslips for a minimum of 5 years in accordance with Article L.3243-4 of the Labour Code. In the case of a digital payslip delivered to the employee via a secure digital vault, the retention period is 50 years or until the employee turns 75. It is recommended to keep payslips beyond 5 years to address potential labor disputes, with the prescription period for salary matters being 3 years.

Is the simplified payslip model mandatory in 2025?

The simplified model has been mandatory since January 1, 2018, for all businesses. The current provisional model has been extended until December 31, 2026. All payslips must comply with the presentation defined by decree in contribution blocks. Payroll software vendors integrate this model into their solutions; however, it is the employer’s responsibility to ensure the compliance of their payslips.

What are the penalties for non-compliant payslips?

Failure to deliver a payslip incurs a third-class contravention (€450) for each missing payslip. A non-compliant payslip may also expose the employer to back contributions during a URSSAF audit if the declared bases do not correspond to the payslip elements. Moreover, in case of labor disputes, an erroneous payslip may lead to damages for the employee due to failure to provide a compliant payslip.