Seconding an employee from a non-EU country to France

An employer established outside the EU, the EEA or Switzerland can temporarily send an employee to work in France. If a bilateral social security agreement exists, the employee can remain affiliated with the social security system of their country of origin, subject to certain conditions.

Verified on May 11th 2026

Summarize this content with AI:

In a nutshell

  • Seconding an employee outside the EU, the EEA or Switzerland is dependent upon the existence of a bilateral social security agreement signed with France. 
  • When the agreement provides for this, the employee may remain affiliated with the social security system of their country of origin for a limited period. Contributions are then paid in that country. 
  • A secondment requires prior formalities. 
  • In the absence of an agreement, or if the conditions are not met, affiliation with the French social security system is mandatory from the start of employment in France. 

 

What is a worker seconded outside the EU, the EEA or Switzerland?

A worker seconded outside the EU, the EEA or Switzerland is an employee sent temporarily to France by an employer established in a third country, to carry out a mission on behalf of that employer. 

Unlike intra-European secondments, maintaining affiliation with the social security system of the country of origin is not granted automatically. 

It is only possible if a bilateral social security agreement signed with France expressly provides for it. When such an agreement exists, the employee can remain affiliated with their original system during all or part of their secondment to France. 

The employer remains responsible for: 

  • Correctly classifying the secondment status. 
  • Complying with the conditions stipulated in the agreement. 
  • Paying social security contributions in the relevant state. 

To work legally in France, third-country nationals must also comply with the applicable visa, residence and work permit regulations. 

Good to know

Any secondment to France, regardless of the employees nationality, must be declared in advance by the employer based abroad, using the Ministry for Labors online service, “Sipsi

Click to access SIPSI

What are the conditions of the secondment?

 The secondment is recognized when several conditions are met.

What is the duration of the secondment?

The length of time an employee can remain affiliated with the social security system of their country of origin is determined by the applicable bilateral agreement.

  • This varies from country to country, ranging from a few months to several years (up to five years).
  • Some agreements allow for renewal, subject to certain conditions.

It is essential for the employer to consult the specific terms of the agreement to determine the maximum secondment duration, the risks covered and the employee’s rights.

 

What are the rights of an employee seconded to France?

The rights of an employee seconded to France depend exclusively on the provisions of the applicable bilateral agreement. 

Some agreements do not cover all risks (illness, maternity, old age, unemployment, etc.). In this case, both the employee and the employer must contribute to the French social security system for the uncovered risks. 

Family members accompanying the employee (spouse or partner, minor children) may also be eligible for coverage, if the agreement provides for it and if they reside in France for the duration of the secondment. 

What is the procedure to follow?

To maintain the employee’s coverage under the social security system of their country of origin, the employer must complete the following steps before the employee’s arrival in France: 

  1. Inform therelevant organizationin the country of origin of the planned secondment. 
  2. Request acertificate of coveragefrom the liaison social security organization. 
  3. Obtain validation of the secondment from the foreign organization.
  4. Keep a copy of the certificateof coverageand provide one to the employee. 

This certificate enables the employee to prove that they remain affiliated with their original social security system during their assignment in France. The conditions for healthcare coverage in France depend on bilateral agreements. 

How to prepare for the extension and end of a secondment?

What is a social security agreement?

Cleiss

At a glance

This page explains employee postings from a non-EU country to France work. It is based on institutional sources such as bilateral social security agreements signed by France, French social security regulations and CLEISS. It presents information covering the conditions, duration and procedures allowing employees to remain affiliated to their home social security system where a bilateral social security agreement exists and the relevant conditions are met. It uses the example of an employee posted to France by a foreign company who remains affiliated to their home social protection system.