Establishing a UK business in France: a legal guide
The establishment of a UK company in France is often driven by a need for security and growth: access to the European market, proximity to clients, and the restructuring of post-Brexit workflows. From the very first weeks, the project hinges on concrete choices (structure, governance, taxation, employment) that determine compliance and overall costs.
This guide provides a clear, jargon-free overview to help you understand the steps and key considerations before establishing a British company in France.
Why do British companies establish themselves in France?
Market access and post-Brexit strategy
For many companies, France remains a key European anchor. It allows them to serve a local client base, approach strategic partners, and streamline certain commercial flows.
In a post-Brexit context, establishing a presence in France is sometimes considered to better manage operational constraints (VAT, customs, logistics) and secure a foothold within the European Union.
Observed trends in the field
We see recurring trends:
- commercial structures looking to "localize" part of their operations,
- establishment projects linked to fundraising,
- corporate structures aimed at harmonizing group organization.
In some sectors, establishing a presence also supports an external growth strategy: mergers, acquisitions, or cross-border mergers.
Common initial misunderstandings
The most common misconceptions:
- believing that a UK structure can be "transposed" to France exactly as is,
- underestimating formalities and lead times,
- discovering labor law rules (contracts, social charges, termination) too late,
- neglecting the differences in legal and administrative culture.
Choosing the right structure: subsidiary, branch, or representative office?
The choice of structure is pivotal. It impacts liability, taxation, governance, and credibility with partners.
French subsidiary: a common corporate choice
Setting up a subsidiary (often a SAS or a SARL) allows you to establish a French legal entity. This is a common corporate structure when a company wants to:
- enter into local contracts,
- hire staff,
- invoice from France,
- ensure clear governance.
From a group perspective, this choice also makes it easier to plan for a future merger , internal reorganization, or M&Aactivity.
Branch: a presence without a separate legal personality
A branch may be suitable for certain projects. However, it requires increased vigilance regarding the concept of a permanent establishment and its tax and social security implications.
Representative office: a more limited structure
A representative office is generally reserved for non-commercial activities (market research, representation). As soon as the activity becomes commercial, the structure must be re-evaluated.
Costly mistakes
- Choosing a default structure without planning for the next 2–3 years.
- Failing to anticipate the entry of an investor or a fundraising round.
- Underestimating the consequences foremployment (status, costs, obligations).
- Forgetting that the legal structure must follow the business strategy.
UK company formalities: key steps for setting up a subsidiary
The UK company formalities in France follow a strict sequence. A formal error can delay registration.
Standard steps
- Define the structure (SAS, SARL, etc.) and governance framework.
- Draft the articles of association (and related documents).
- Deposit the share capital.
- Publish the legal notice.
- Submit the application via the Single Window portal and obtain RCS registration.
- Set up tax (VAT, optional elections) and social (employer) parameters.
Common mistakes made by executives
- Incomplete or inconsistent files (dates, signatories, supporting documents).
- Poorly secured domiciliation or "theoretical" registered office.
- Failure to anticipate translations, required documents, and processing times.
- Confusion between UK documents and French requirements.
At this stage, legal counsel beforehand often prevents back-and-forth and application rejections.
Taxation and social obligations: what is most underestimated
UK corporate taxation: key considerations
In France, companies must anticipate:
- corporate income tax (depending on structure and activity),
- VAT and its liability rules,
- various taxes and contributions based on the specific situation and sector.
A poorly structured setup can lead to undesirable consequences: unbudgeted costs, audit risks, and accounting complexity.
Employment: payroll taxes, filings, and labor law
The employment aspect is often the most surprising. France imposes a detailed social framework:
- filings and registrations (URSSAF, various agencies),
- working time regulations,
- contracts, probationary periods, and clauses,
- contract termination and litigation risks.
An expansion project must therefore calculate the total employer cost and establish HR practices from the outset.
Major risks and best practices
Common risks
- Commercial contracts not adapted to French law.
- VAT errors on cross-border transactions.
- Non-compliance with labor law (cost and reputation).
- Unclear governance (powers, delegations, decisions).
In contexts of external growth (acquisitions, mergers, mergers), the absence of a prior audit is a significant risk factor.
Recommended best practices
- Legal and tax feasibility study before making decisions.
- Choice of structure consistent with strategy (including mergerscenarios).
- Review of key contracts (clients, suppliers, distribution).
- Implementation of ongoing compliance monitoring.
- Coordination between lawyers, accountants, and tax advisors to eliminate blind spots.
Working with a Franco-British lawyer: when and why?
It is best to involve us as soon as the project is conceived.
The goal is to align structure, governance, tax, employment, and contracts.
The added value in these cases lies in translating the logic between two systems and securing execution. An internal analyst or a CFO can manage the project, but anticipating legal risks is crucial to avoid costly corrections later on.
(General information: no personalized advice can be provided without an analysis of your specific situation.)
FAQ
Can a UK company operate in France without incorporating a local entity?
Yes, through a branch or a permanent establishment. However, this creates tax and social security obligations in France.
What is the best structure for a British company in France?
There is no one-size-fits-all structure. The choice depends on your business activities, volume of trade, growth objectives, and tax constraints.
Is a French subsidiary automatically subject to French corporate tax?
A company incorporated in France is, in principle, subject to corporate income tax on profits generated in France.
Does French labor law apply to employees of a UK company working in France?
Yes. As soon as work is performed in France, French labor law applies.
Has Brexit changed the obligations of British companies in France?
Yes. Trade, VAT, and certain customs formalities have changed since the United Kingdom left the European Union.
