LLC vs C-Corp for French Founders: Which US Entity Is Right for You?
French founders building a US business face a specific structural challenge: France's tax treatment of a US LLC is one of the most unfavourable in Europe, and the US-France tax treaty — while comprehensive — has important nuances that determine which entity makes sense for your situation.
The core difference
An LLC is a pass-through entity by default — no US corporate tax, profits flow to owners. A C-Corp is a separate taxable entity — 21% US corporate tax, then dividend withholding on distributions. C-Corps are the standard for venture-backed companies because they can issue preferred stock and option pools.
The French tax dimension
France taxes French residents on worldwide income. The treatment of a US LLC under French tax law creates serious problems.
The LLC transparency problem: France treats a US LLC as a transparent entity — it looks through the LLC and taxes the French owner directly on the LLC's profits, even if those profits are not distributed. The US also taxes the LLC's income at the individual level. The result is double taxation on the same income, with limited treaty relief. The US-France tax treaty (in force since 1994, updated 2009) has a specific anti-hybrid provision (Article 4(7)) that can deny treaty benefits to entities that are treated differently by the two countries — which is exactly what happens with a US LLC owned by a French resident.
The C-Corp advantage: France treats a US C-Corp as an opaque entity. French tax on corporate profits is deferred until you take a dividend or salary. The US-France treaty reduces dividend withholding to 5% for qualifying corporate shareholders (holding 10%+ of the C-Corp) and 15% for individuals. The treaty also provides foreign tax credits to avoid double taxation on dividends.
The SAS holding structure: Many French founders use a French SAS (Société par Actions Simplifiée) as the holding entity that owns the US C-Corp shares. This structure — French SAS → US C-Corp — can be tax-efficient under the right conditions, particularly if the SAS qualifies for the French participation exemption (exonération des dividendes) on dividends received from the US C-Corp. If this is your situation, the US entity should be a C-Corp.
When to choose an LLC
- Simple service business, no retained earnings, no fundraising plans
- You have confirmed with a French cross-border tax adviser that the transparent treatment and Article 4(7) do not create double taxation in your specific case
- You want the lowest administrative overhead
When to choose a C-Corp
- You plan to raise venture capital or angel investment
- You want to issue stock options to employees or advisers
- You want to retain profits in the US entity
- You are using or plan to use a French SAS as the holding entity
- You want treaty-protected dividend treatment
Practical comparison
| Feature | LLC | C-Corp |
|---|---|---|
| US federal tax | Pass-through | 21% corporate rate |
| French treatment | Transparent (double taxation risk, Article 4(7) anti-hybrid) | Opaque (deferred until distribution) |
| US-France treaty | Limited benefit; Article 4(7) may deny treaty protection | Reduced withholding (5%/15%) |
| SAS holding structure | Incompatible | Standard |
| VC fundraising | Difficult | Standard |
| Employee equity | Complex | Standardised |
What Keystone Bridge recommends
For most French founders building a scalable business, the C-Corp is the better choice. The treaty protection and clean equity structure outweigh the double-taxation cost. For founders running a simple service business, the LLC can work — but only with a French cross-border tax adviser confirming the structure first, specifically addressing Article 4(7) of the US-France treaty.
We handle formation, EIN, registered agent, and operating documents. For the French-specific tax analysis, you need a cross-border specialist.
This guide is for informational purposes only and is not financial, tax, or legal advice. Consult a qualified adviser for your specific situation.