How to Create a Compliant Payslip in 2025: A Complete Guide

Introduction: The Importance of a Compliant Payslip

The payslip is the central document reflecting the employment relationship between the employer and the employee. It substantiates the executed employment contract and details the compensation paid as well as the contributions deducted. In 2025, regulatory requirements have further evolved, particularly with the consolidation of the montant net social (MNS) (net social amount) and the extension of the provisional simplified payslip model until December 31, 2026. For Human Resources departments and payroll managers, mastering these obligations is essential to avoid disputes in the labor tribunal and adjustments by URSSAF.

This comprehensive guide walks you through the steps for establishing a complies payslip according to the provisions of the Labour Code, the BOSS (Official Bulletin of Social Security), and the current decrees. We will cover each area of the payslip, the mandatory mentions, the calculation of the MNS, the fiscal section for withholding tax (PAS), and the obligations for record retention.

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

Article R.3243-1 of the Labour Code provides a comprehensive list of 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 Zone

This zone 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 (primary business activity)
• The reference of the body to which the employer pays social security contributions (relevant URSSAF)
• The applicable collective agreement or, if absent, a reference to the Labour Code for provisions regarding paid leave and notice periods

In practice, most payroll software automatically fills in this information based on the initial configuration of the company. However, it is essential to regularly check their accuracy, especially in the event of changes in address, APE code, or collective agreement.

Employee Identification Zone

Information related to the employee includes:

• The employee’s first and last name
• The job position and collective classification (level, step, coefficient)
• The period and number of hours worked to which the remuneration pertains, distinguishing between hours at the normal rate and overtime hours (with mention of the applicable increase rate)
• The nature of the base used to calculate the salary when it is not based on the duration of work

Gross Remuneration Zone

Gross remuneration includes all components constituting the salary. The BOSS clarifies that the following must appear distinctly:

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

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

The Social Contributions Zone

The simplified payslip, whose provisional model is maintained until December 31, 2026, groups contributions into major blocks to enhance readability. The contributions lines must show:

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: complementary health, insurance
2. Occupational accidents – Occupational diseases
3. Retirement: 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: professional training, apprenticeship tax, etc.

The 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 basic retirement, Agirc-Arrco tranche 1, etc.) and must be prorated in case of part-time work or entry/exit during the month.

Example: For an employee working 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 made mandatory on all payslips since January 1, 2024, the montant net social is essential for employees, particularly for dealings with the CAF (family benefits fund) and France Travail.

Definition and Calculation of MNS

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

MNS = Total gross remuneration – Mandatory social contributions and taxes charged to the employee

The elements considered in gross remuneration for the MNS calculation include:

• Base salary
• Bonuses (seniority, 13th month, performance, etc.)
• Benefits in kind (food, housing, vehicle, IT equipment)
• Salary maintenance during an absence (sickness, maternity)
• Overtime and additional hours
• Paid leave compensation
• Daily social security benefits paid by subrogation

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

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

Example of MNS Calculation

Consider a non-managerial employee with the following elements:

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

Gross remuneration for 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 be displayed on a dedicated line on the payslip, clearly identified under the title “Montant net social”.

Net Pay Before and After Withholding Tax (PAS)

Net Pay Before Income Tax

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

Net Pay Before PAS = Gross Remuneration – Total Employee Contributions + Expense Reimbursements – Benefits in Kind (deduction)

The Fiscal Section for Withholding Tax

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

• The base for PAS (taxable net income)
• The applied rate (personalized rate, neutral rate, or individual 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 withheld will be €2,200 x 7.5% = €165.

Net Pay to the Employee

The final net pay is calculated as follows:

Net 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 simplified payslip model, 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 covered risk
• Display of total employer costs (optional but recommended)
• Native integration of the montant net social

Payroll software providers have integrated this model into their solutions. However, it is recommended that employers regularly verify the compliance of payslip templates, especially during annual configuration updates.

Retention of Payslips: A Minimum 5-Year Obligation

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

Since January 1, 2017, employers can deliver payslips in electronic form, unless the employee objects. In this case, the employer must ensure the payslip is available for 50 years or until the employee turns 75, through a compliant digital safe.

Points of Caution:

• In case of URSSAF inspection, payslips must be provided for the audited period (generally 3 years + the current year)
• In the case of labor tribunal disputes, employees can present their payslips as evidence without time limitation
• The failure to issue a payslip incurs a fine of €450 for each missing payslip

Common Mistakes to Avoid

Here are the mistakes that we frequently encounter during our payroll compliance audits:

1. Omission of the MNS mention: Since 2024, this mention is mandatory on all payslips. Its absence can lead to disputes with the employee.
2. Missing PAS section when the amount is zero: The BOSS is clear; the section must be present even if the withheld amount is €0.
3. Incorrect prorating of the social security ceiling: For part-time work or entry/exit during the 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. Non-valorized benefits in kind: Benefits in kind must be valued and displayed both in gross and net deductions.

Summary Table of Payslip Zones for 2025

For a synthetic view, here are the main zones of the compliant payslip:

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

FAQ: Your Questions About Compliant Payslips in 2025

Should 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 obligation arises from the decree of January 31, 2023. The MNS enables the employee to declare their income to the CAF or France Travail more efficiently. Its absence on the payslip constitutes a failure to meet the employer’s legal obligations.

Is it necessary to include the PAS section if the employee has a rate of 0%?

Yes, the fiscal section related to withholding tax is mandatory even when the amounts are zero. The BOSS explicitly states this requirement. The payslip must indicate the base, the rate (even at 0%), and the amount (even at €0). This mention allows the employee to verify that their rate is correctly applied and to ensure no configuration 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 case of a digitally issued payslip via a digital safe, the retention period is 50 years or until the employee turns 75. It is advisable to retain the payslips beyond 5 years to address potential labor tribunal disputes, as the statute of limitations in labor matters is 3 years.

Is the simplified payslip model mandatory in 2025?

The simplified model has been mandatory since January 1, 2018, for all companies. The current provisional model is extended until December 31, 2026. All payslips must comply with the block presentation of contributions as defined by decree. Payroll software providers have integrated this model into their solutions, but it is up to the employer to verify the compliance of their payslips.

What penalties exist for non-compliant payslips?

Failing to deliver a payslip incurs a 3rd class offense (fines of €450) for each missing payslip. An incorrect payslip may also expose the employer to back contributions during a URSSAF inspection if the declared bases do not match the payslip elements. Finally, in case of labor tribunal disputes, an erroneous payslip may lead to damages awarded to the employee for failing to deliver a compliant payslip.