Luxembourg attracts many French entrepreneurs: a lower corporate tax rate, a stable legal framework, immediate proximity. Setting up a Luxembourg structure from France therefore feels natural, and it is often a sound decision.
But a company is not Luxembourg-based because it is registered in Luxembourg. It is Luxembourg-based because it is effectively managed there. That distinction separates a solid structure from a tax reassessment, and it is the one most projects overlook at the start.
This article sets out the two real risks, tax residence and permanent establishment, then the practical conditions to meet before signing anything.
I. Where is a company resident?
A company registered with the Luxembourg Trade and Companies Register is, under domestic law, resident in Luxembourg. The difficulty is that France may, for its part, treat it as French-resident if it is managed from France.
The France-Luxembourg tax treaty of 20 March 2018 settles that conflict. Where a company is resident in both States under their domestic laws, it is deemed resident in the one where its place of effective management is located.
The place of effective management is not an address. It is where management decisions are actually taken, where the governing body deliberates and decides. A letterbox in Luxembourg City is not enough; a manager who decides everything from an office in Metz shifts the centre of gravity to France.
The consequence is blunt: if effective management sits in France, the company becomes taxable there on its entire result, and the saving sought disappears, with late-payment interest on top.
II. The second, often overlooked risk: permanent establishment
Even where Luxembourg residence is not disputed, the company may create a permanent establishment in France. France then taxes not the whole result, but the share attributable to that establishment.
Two situations come up constantly.
- The fixed place of business: an office, a workshop, permanent premises in France from which the activity is carried on. A private home used as a habitual working base enters the discussion.
- The dependent agent: a person who, in France, habitually has and exercises the authority to conclude contracts in the company’s name. A director who negotiates and signs from France combines both roles.
The point to remember: a permanent establishment is not declared, it is established as a matter of fact. A company can have one without knowing, for years, until an audit.
III. What substance means in practice
Substance is not an abstract concept. The authorities expect verifiable elements, and they are the same ones required of a holding company.
- a registered office and real premises in Luxembourg, not merely a domiciliation service;
- a governing body that decides in Luxembourg, with meetings held on site;
- local bank accounts;
- accounting kept in Luxembourg;
- properly documented and dated decisions, consistent with the places declared.
The last point is what makes the difference in an audit. Real but undocumented substance is hard to defend; substance documented from the outset defends itself.
| Signal | What strengthens the position | What weakens it |
|---|---|---|
| Place of decisions | Minutes signed in Luxembourg, with consistent dates | Decisions taken by email from France |
| Premises | Real office, lease in the company’s name | Domiciliation only |
| Management | Manager present and available in Luxembourg | Manager living and working in France |
| Banking and accounting | Accounts and books in Luxembourg | Accounting kept from France |
| Contracts | Negotiated and signed in Luxembourg | Signed from France by the director |
IV. The business permit: the registered office must exist first
The business permit, issued by the Ministry of the Economy, rests on three criteria: the manager’s qualification or experience, their professional standing, and the existence of a registered office.
That third criterion is no formality for a French founder: the office must exist when the application is filed, and the stated corporate purpose must match the actual activity precisely, failing which the application is refused. The cost is modest, 50 euros in chancellery fees, but the lead time runs from two to six weeks depending on the complexity of the file.
A foreign director must also provide a complete file: criminal record extract, evidence of experience. And since the permit attaches to the person who manages, any change of manager must be notified to the ministry.
V. And the director personally?
Once the company is properly established, the personal position of a France-resident director remains. It follows rules entirely separate from the company’s: depending on whether they receive a salary, directors’ fees or dividends, the taxing State changes. That is a subject in its own right, covered in our article on the taxation of a France-resident director.
On the social security side, a director carrying on part of their activity from France falls under the European rules on multi-State activity, with the thresholds and filings that entails. Here too the logic differs from the tax logic, and the two analyses must be conducted separately.
VI. The checklist before you start
- Who will manage, and from where? That is the first question, not the last. It governs everything else.
- Will the registered office be real premises or an address? An office costs more than a domiciliation service, and is worth far more in an audit.
- Where will contracts be negotiated and signed? If the answer is France, permanent establishment is already on the table.
- Will the accounting be kept in Luxembourg? It is an indicator of substance, not merely an obligation.
- Will decisions be documented? A register kept from day one costs a few minutes per quarter.
- Does the manager hold the qualification required for the business permit? Check before incurring costs.
Conclusion
Setting up a Luxembourg company while living in France is perfectly legitimate, and often sensible. What is not sensible is registering a structure and hoping the address will do.
The two risks, displaced effective management and a permanent establishment created, cannot be fixed after the event: they are prevented at incorporation, through organisational choices that cost almost nothing at the outset and a great deal three years later.
At Ease Advisory we work on both sides of the border: a firm established in Luxembourg, and thirteen years of practice between France and Luxembourg. We therefore run both analyses at once, rather than sending you from one adviser to another. Planning to set up? Let us talk before incorporation, that is where everything is decided.
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