The French social security system
In France, the social security system protects employees against life’s main risks. Funded by social contributions, it offers businesses a stable, predictable and legally secure social framework.
In a nutshell
- The French social security system is based on a solidarity-based, collective and mandatory model.
- It protects employees and their families against the main social risks: illness, maternity, workplace accidents, old age, family and loss of independence.
- These risks are pooled at the national level and financed by social security contributions paid by employers and employees.
- For businesses, this system provides a clear and structured framework for managing social obligations and ensuring business continuity.
How does the French social security system work?
The French social security system is based on a principle of national solidarity: social security contributions finance the coverage of the main social risks for all insured individuals.
The social security system is primarily financed by social security contributions, paid partly by the employer (employer contributions) and partly by the employee (employee contributions).
These contributions are calculated based on earnings and set by the government according to the nature of the risks covered. Their level can vary depending on the business’s situation, the employee’s circumstances and the applicable collective bargaining agreement.
Thanks to a national solidarity system:
- Employers do not bear the unforeseen financial consequences of illness,accidentsor old age alone; part of the cost is shared at the national level.
- Social security contributions are known,regulatedand predictable, determined by legal and contractual rules.
- Businessesoperatewithin a transparent and legally secure social environment.
The social security system thereby guarantees the continuity of employee rights, without compromising the continuity of business operations.
Special case: Employees posted to France
According to European regulations and certain bilateral agreements, foreign employees on assignment in France for their employer based abroad may, under certain conditions, maintain the affiliation with the social security system of their country of origin.
Understanding the French social security system in three minutes
What risks are covered by the social security system?
The French social security system covers the main risks that can affect employees’ health, income or professional activity. For businesses, it provides a common foundation of protection, eliminating the need to manage each situation individually.
It is organized around six branches, which support employees throughout their professional and personal lives.
The Health Insurance branch, managed by the CNAM (the National Health Insurance Fund), covers situations related to:
- Illness
- Maternity
- Disability
- Death
It notably provides reimbursement for healthcare expenses and the payment of daily allowances in the event of sick leave.
Purpose:
To guarantee access to healthcare and maintain replacement income when an employee is unable to work.
The Workplace Accidents and Occupational Diseases (AT/MP) branch protects employees against risks related to their professional activity.
It deals with:
- Coverage of medical expenses without upfront payment.
- Payment of daily allowances.
- The possible awarding of an annuity or lump sum in the event of permanent disability or death.
Purpose:
To prevent occupational risks and compensate for the consequences of work-related accidents or illnesses.
The Old Age branch, managed by CNAV (the National Old Age Insurance Fund), pays retirement pensions to insured individuals who have ceased their professional activity. Mandatory retirement also includes a supplementary scheme (AGIRC-ARRCO), which is financed by employer and employee contribution.
Purpose:
To guarantee a replacement income for retired individuals to ensure their financial security.
The Contributions and Collection branch, managed by URSSAF, the agency responsible for collecting social security contributions, collects all social security contributions from employers and employees.
Purpose:
To guarantee the financing of the system and ensure compliance with reporting and payment obligations.
The Family branch, managed by CAF (the Family Allowance Fund), supports families through the payment of benefits such as:
- Family allowances.
- Housingassistance.
- Certain income supplements.
Purpose:
To reduce inequalities and help families cope with the expenses related to children and housing.
The Autonomy branch, managed by CNSA (the National Solidarity Fund for Autonomy), finances expenses related to:
- Loss ofindependencein older adults.
- Situations of disability.
Purpose:
To encourage continued independence, support vulnerable individuals and assist caregivers.
What are the mandatory supplementary schemes?
The basic social security scheme is supplemented by additional social protection schemes financed by private sector actors, some of which are mandatory for employers.
These schemes are based on contributions paid to private organizations (insurance, pension funds, insurers). Employers have some flexibility, within certain limits, in defining the level of coverage, provided they comply with minimum legal requirements.
The main schemes
Supplementary health insurance (company-sponsored health plan)
Mandatory for all employees, it covers all or part of the healthcare expenses remaining after reimbursements from the social security system.
The employer must finance at least 50% of the premium.
Group life and disability insurance
This provides financial protection for employees and their dependents in the event of serious risks, particularly death.
It is mandatory for managers and may be mandatory for other employees, depending on the applicable collective bargaining agreement or company agreement.
A supplementary plan to retain your employees
Beyond legal requirements, an attractive supplementary benefits package is a powerful tool for retaining and attracting talent, integrated into a well-managed overall remuneration strategy.
How is social security financed in France?
Social Security is financed by social contributions calculated on wages, shared between the employer and the employee.
For the firm, this means that:
- Social security is integrated into the overall cost of employment.
- The rules and rates are set at the national level.
- Each risk does not have to be financed separately.
This model offers visibility and predictability of social security contributions for the employer.
What is the cost of an employee to the employer?
The cost of an employee is not limited to the salary paid. It includes all the financial elements related to their employment.
The main elements are:
- Gross salary
Remuneration stipulated in the employment contract and the reference salary, which is used as the basis for calculating social security contributions.
- Net salary before tax
Amount paid to the employee after deduction of employee contributions (before income tax withheld at source).
See our dedicated page: Personal Taxation
- Total employer cost
Gross salary plus mandatory employer contributions and levies.
Part of the contributions is deducted from the employee’s gross salary, while the other part is covered by the employer and added to the total cost.
Contribution rates vary depending on the sector of activity and the nature of the risk covered. They are set by the government and cannot be changed by the employer.
Understanding the distinction between gross, net and total employer cost is essential for anticipating expenses and structuring an appropriate remuneration policy.
Simulator
An official URSSAF simulator enables you to calculate net salary, gross salary or total employer contributions.
At a glance
This page explains how the French social security system works . It is based on institutional sources such as securite-sociale.fr, ameli.fr, URSSAF and Business France. It presents information covering the principles of solidarity, the risks covered, the system’s funding methods and their implications for employers. It uses the example of a company setting up in France, or already established in France, employing one or more employees.