France has one of the lowest union membership rates in Europe, around 10% of employees belong to a trade union (syndicat). And yet, nearly 98% of the workforce is covered by a collective bargaining agreement (source: Dares, French Ministry of Labour statistics). That gap is not a contradiction. It is the defining feature of the French industrial relations system, and understanding it is essential for any foreign employer operating in France.
This guide breaks down how French trade unions are structured, how collective bargaining works at three distinct levels, what the Social and Economic Committee (CSE, Comité Social et Économique) requires from your organisation, and what you need to know about the right to strike, from a practical employer perspective.
The French Trade Union Landscape
France's union system does not run on membership numbers. It runs on electoral results. A trade union's legitimacy, and its right to negotiate binding agreements, depends on the votes it receives in professional elections (élections professionnelles), held every four years in companies with at least 11 employees. This is worth understanding early: a union with very few members can still hold full negotiating rights if it performs well at the ballot box.
The Five Representative Confederations (syndicats représentatifs)
At the national level, five confederations hold representative status:
The CFDT is currently the largest, with approximately 634,000 members (source: cfdt.fr). To negotiate at the branch or national level, a union must clear an 8% threshold in national professional elections. At the company level, the threshold rises to 10%.
Why Low Membership Does Not Mean Low Influence
The French system extends the benefits of collective agreements far beyond union members. When an industry-level agreement is concluded and then extended by ministerial decree (a mechanism called extension des accords, the formal extension of collective agreements to an entire sector), it automatically applies to all employers and employees in that sector, regardless of whether either party is unionised. This is why nearly 98% of employees are covered despite only 10% belonging to a union.
The practical implication for a foreign employer: the collective agreement governing your sector applies to your French employees by default. You do not need to have signed anything, and your employees do not need to be union members.
Collective Bargaining in France: Three Levels That Apply to Your Company
French collective bargaining operates on three distinct levels. As an employer in France, you are affected by all three simultaneously.
National-Level Agreements (accords interprofessionnels)
These are cross-industry agreements negotiated between the main employer federations (primarily MEDEF and CPME) and the five representative union confederations. They cover foundational matters: the national minimum wage (SMIC), general working conditions, social security entitlements, and broad employment frameworks. The most significant recent example is the wave of reforms introduced under the Macron Reform (Lois Macron / Ordonnances Travail 2017), which substantially increased the flexibility available at company level.
Industry-Level Agreements (conventions collectives de branche)
Each industry sector has its own convention collective de branche. This is the agreement most directly relevant to your day-to-day HR obligations in France. It sets minimum wages for each job category within your sector (often higher than the SMIC), additional leave entitlements, supplementary benefits such as prévoyance (death and disability insurance) or mutuelle (complementary health cover), and rules on working time and termination.
Identifying your applicable convention collective is a legal obligation. The practical starting point is your NAF/APE code, the French activity classification code assigned to your business by INSEE at registration. For example, a foreign technology or consulting firm registered under NAF code 6201Z (software publishing) would typically fall under the SYNTEC collective agreement (Convention Collective Nationale des Bureaux d'Études Techniques). SYNTEC imposes specific minimum salaries by job level (coefficients), specific rules on remote work, and additional notice period obligations. Getting this wrong from day one creates compliance exposure.
Company-Level Agreements (accords d'entreprise)
Company-level agreements are negotiated directly within your organisation, between management and a union delegate (délégué syndical), a union-appointed representative within your company. A union delegate can be designated once your headcount reaches 50 employees and the union has achieved at least 10% of votes in your most recent professional elections.
Below 50 employees, the rules are different: agreements can be negotiated with a CSE member who has received a mandate from a representative union, or in some cases ratified by a two-thirds employee vote. Since the 2017 Macron reforms, company-level agreements can in certain areas be more flexible than branch agreements, but only within the limits allowed by law.
The Social and Economic Committee (CSE): What It Means for Your Headcount
The CSE (Comité Social et Économique) is the main employee representative body in France. It was created by the 2017 Macron reforms and became mandatory from 1 January 2020, merging three previously separate bodies: the works council (comité d'entreprise), the staff delegates (délégués du personnel), and the health and safety committee (CHSCT).
Mandatory from 11 Employees
Once your French headcount reaches 11 employees maintained for 12 consecutive months, you are legally required to organise elections and establish a CSE. The number of elected representatives scales with your headcount: from one seat at 11 employees to 35 seats for companies with over 10,000 employees.
What does this mean in practice? When a foreign company hires its eleventh employee in France, it must organise a first round of elections within 90 days of a written employee request, or proactively, within 90 days of crossing the threshold. This involves notifying the labour inspectorate (DREETS), setting an election protocol, and managing the electoral process. Missing this obligation is a compliance risk, as the absence of a CSE can affect the validity of company-level decisions.
What the CSE Can Negotiate
In the absence of a union delegate, the CSE can take on a negotiating role for certain company-level agreements. This flexibility, reinforced by the 2017 reforms, allows companies below 50 employees to still conclude agreements on topics such as working time arrangements, profit-sharing (intéressement), or on-call duties, as long as the agreement is approved by a majority of CSE members and, in some cases, validated by the relevant branch commission (commission paritaire de branche, the joint sector-level committee).
The Right to Strike (droit de grève): What You Need to Know as an Employer
The right to strike is constitutionally protected in France. It applies to both private and public sector employees, though the rules differ.
How Strikes Are Organised
A lawful strike must be collective: a single employee cannot go on strike alone. In the public sector, a mandatory 5-day notice period (préavis de grève, a formal strike notice) must be filed before any strike action, this allows management to anticipate and organise continuity of service. In the private sector, there is no statutory obligation to give advance notice, unless a specific collective agreement in your sector requires it.
Strikes are typically called by representative trade unions, though under French case law, employees can also strike without a formal union call, as long as the action is collective and relates to professional demands.
Your Obligations During a Strike
As an employer, your obligations during a strike are clearly defined. You cannot replace striking employees with temporary workers (intérimaires) for the duration of the industrial action, this is explicitly prohibited by the Code du Travail. You may, however, continue operations using non-striking employees, subcontractors (if not specifically excluded by contract), or management staff.
Salary deductions are limited strictly to the hours or days of strike action. No additional disciplinary measures can be taken against employees solely for participating in a lawful strike.
In sectors providing essential services, transport, energy, healthcare, specific continuity of service rules may apply. These are sector-specific and should be checked against your convention collective and applicable legislation.
Practical Implications for Foreign Employers in France
Applying the Right Collective Agreement (Convention Collective)
The first step for any foreign company hiring in France is identifying which convention collective de branche applies to its activity. This is done via the NAF/APE code. Once identified, the convention sets the floor for your HR obligations: minimum salaries by category, specific leave rules, mandatory benefits, and sometimes specific termination procedures. Branch minimum wages (minima de branche, sector-level minimum salary scales) are regularly renegotiated by the unions and employer federations in that sector, and frequently exceed the SMIC for skilled positions.
Getting payroll, benefits, and employment contracts aligned with the right convention from the outset is the single most effective way to avoid compliance issues with the French labour inspectorate. For a detailed breakdown of what this means in terms of payroll setup and ongoing obligations, the guide to HR payroll compliance in France covers the operational steps.
Obligations When You Cross Key Headcount Thresholds
Two thresholds matter most for foreign employers scaling their French workforce:
- 11 employees (maintained 12 consecutive months): CSE elections become mandatory. You must also apply the relevant rules on employee information and consultation.
- 50 employees: A union delegate may be designated (if a representative union clears 10% in elections). You become subject to mandatory annual negotiations (NAO, Négociation Annuelle Obligatoire, the mandatory annual collective bargaining process) on pay, working time, and gender equality. An internal company rules document (règlement intérieur, the mandatory internal regulations) also becomes legally required.
These thresholds can catch foreign employers off guard, particularly companies that grow quickly through a single hiring push. Planning ahead, ideally before you reach 10 employees, gives you time to prepare the electoral process and adapt your HR structure. If you are scaling a team in France and want to understand what each stage requires operationally, HR project management in France outlines how to structure that growth.
Working with a Local HR and Payroll Partner to Stay Compliant
For foreign companies building a team in France, working with a local outsourced payroll and HR partner helps navigate all French employment obligations: payroll, convention collective compliance, CSE setup (if applicable), mandatory annual negotiations, and benefits administration. This is particularly relevant in the early stages of French operations, when the complexity of the union and social relations system can be difficult to navigate without specialist in-country knowledge.
France's trade union framework is not designed to obstruct foreign investment, but it does require genuine understanding of the rules. The companies that operate smoothly in France are those that identify their applicable collective agreement early, plan for headcount thresholds before reaching them, and build employee relations processes that meet both legal minimums and operational expectations.
