US citizens who start a business in France face two distinct layers of obligation: the French tax and social security system that applies to any French business operator, and the US international tax rules that apply to US persons conducting business abroad. The interaction between these two systems depends on the legal structure chosen. The choice made at formation determines which US reporting forms apply, whether current-year US income inclusions arise, and how earnings can be extracted from the French business.
France offers several business structures suited to different business scales and types. Each produces a materially different result under US tax law. Selecting a structure based on French considerations alone, without understanding the US consequences, is a common and costly planning error.
The Main Structural Options
US citizens starting a business in France typically choose among the following:
| Structure | French Character | US Tax Classification |
|---|---|---|
| Micro-entrepreneur (EI) | Sole trader; no separate legal entity | Sole proprietorship; Schedule C |
| SASU | Single-member simplified joint-stock company | Per se foreign corporation |
| EURL | Single-member limited liability company | Per se foreign corporation |
| SAS | Multi-member simplified joint-stock company | Per se foreign corporation |
| SARL | Multi-member limited liability company | Per se foreign corporation |
| SNC | General partnership | Not per se; check-the-box eligible |
The micro-entrepreneur and standard sole trader routes produce the simplest US treatment. Any incorporated entity in France, regardless of size or number of shareholders, is classified as a foreign corporation for US tax purposes and cannot be reclassified by election.
Operating as a Sole Trader: The Micro-Entrepreneur Regime
The micro-entrepreneur regime is designed for small businesses operating below defined annual revenue thresholds. It is the most administratively simple structure available in France and the most commonly chosen by US citizens starting freelance or consulting activities.
French Treatment
Under the micro-entrepreneur regime, French income tax is calculated on turnover after a flat-rate deduction (abattement). The abattement rate depends on the activity category: 71% for commercial sales, 50% for artisanal services, and 34% for liberal and intellectual professions (BNC). Social contributions are paid to URSSAF as a percentage of gross turnover. No formal bookkeeping or annual corporate filing is required.
US Treatment: The Abattement Does Not Transfer
The French abattement does not apply on the US return. A US citizen operating as a BNC micro-entrepreneur (the typical category for consultants, IT professionals, and translators) reports gross turnover on Schedule C of Form 1040, converted to USD. Only actual business expenses are deductible. The 34% BNC abattement is a French legislative simplification with no US equivalent.
| BNC Example: €60,000 turnover, €5,000 actual costs | |
|---|---|
| French taxable income | €60,000 × (1 − 0.34) = €39,600 |
| US Schedule C gross income | €60,000 converted to USD |
| US Schedule C net profit | Approximately €55,000 equivalent |
This divergence is largest for BNC professionals, where actual costs are often low relative to turnover.
Self-Employment Tax and Social Contributions
The US–France Totalization Agreement determines whether the micro-entrepreneur owes US self-employment tax (Schedule SE) or French social contributions (cotisations sociales) to URSSAF. The two systems are coordinated to prevent double coverage: one or the other applies, not both.
Most US citizens who are long-term French residents operating as micro-entrepreneurs are covered by the French social security system. They owe French cotisations and are exempt from US self-employment tax on the same earned income. US citizens who are recent arrivals within the five-year detachment window may maintain US Social Security coverage by obtaining a certificate of coverage from the US Social Security Administration.
Revenue Thresholds and Regime Exit
The micro-entrepreneur regime imposes annual revenue ceilings. Exceeding the threshold for two consecutive years requires exiting the regime and switching to régime réel (full accounting). The US Schedule C treatment remains gross-income-minus-actual-expenses regardless of which French regime applies. However, the French exit from the micro-entrepreneur regime may itself signal that the business has grown to a scale where incorporating becomes advantageous on French terms — at which point the US corporate tax consequences become relevant.
Incorporating a French Business
The Per Se Corporation Rule
Treas. Reg. §301.7701-2(b)(8) lists foreign entity types that are automatically classified as corporations for US federal income tax purposes and cannot elect a different classification. The French entities on this list include the SARL, SAS, SASU, EURL, and SA. This classification is fixed. A US person who forms a SARL or SASU cannot elect partnership or disregarded entity treatment for US tax purposes, regardless of the entity’s structure or French tax treatment.
The French SNC (Société en nom collectif) is not on the per se list and may be classified as a partnership or disregarded entity through a check-the-box election. However, the SNC is an unlimited liability structure rarely used by entrepreneurs. The SCI (Société Civile Immobilière) is similarly not per se, but it is primarily used for real estate holding rather than operating businesses.
CFC Classification
A French corporation becomes a Controlled Foreign Corporation (CFC) under IRC §957 when US shareholders, each owning at least 10% of the voting power or value, collectively own more than 50% of the entity. A US citizen who is the sole owner of a SASU or EURL is a CFC shareholder from the first day of ownership. CFC status activates two US income inclusion regimes.
Subpart F (IRC §951): Certain categories of income earned by the CFC are included in the US shareholder’s gross income in the current year, regardless of whether any distribution is made. For an active French operating business, Subpart F typically applies to passive income streams within the entity, such as interest earned on cash holdings, royalties from intellectual property, or income from related-party transactions. Active operating revenue from a French trade or business generally does not generate Subpart F income.
GILTI (IRC §951A): The Global Intangible Low-Taxed Income inclusion applies to the US shareholder’s pro rata share of the CFC’s net tested income. French corporate income tax (IS) at the standard rate of 25% exceeds the GILTI high-tax exclusion threshold (currently 18.9%). Income taxed by France at the 25% standard rate generally qualifies for the high-tax exclusion and is excluded from the GILTI inclusion by annual election. However, the first €42,500 of taxable income in a qualifying SME may be taxed at the 15% reduced IS rate, which falls below the exclusion threshold. That portion may still produce a GILTI inclusion even when French IS is paid.
SARL vs. SAS: Social Contribution Differences
Beyond the US tax consequences, the choice between a SARL and SAS affects the social contribution structure applicable to the French business operator:
| Feature | SARL (gérant-associé majoritaire) | SAS (président) |
|---|---|---|
| Social security status | TNS (travailleur non-salarié) | Assimilé salarié |
| Contribution base | Net professional income | Gross remuneration |
| Contribution level | Generally lower | Generally higher |
| Social protection | More limited | More complete |
For US persons already covered by US Social Security under a totalization detachment certificate, this distinction may be less determinative. For US citizens permanently established in France and integrated into the French system, the SARL gérant-TNS structure typically results in lower social contributions.
Form 5471: The Mandatory Reporting Obligation
Every qualifying US shareholder of a French CFC must file Form 5471 annually with their US income tax return. A US citizen who is the sole owner of a French SASU serves simultaneously as the entity’s president and its shareholder, making them a Category 3 filer (on acquisition), a Category 4 filer (as the entity’s controlling officer), and a Category 5 filer (as the CFC’s sole US shareholder).
Form 5471 penalties are automatic and substantial. Failure to file results in an initial penalty of $10,000 per corporation per tax year. Continued failure after IRS notification adds $10,000 per 30-day period, up to an additional $50,000. Sustained failure also reduces allowable foreign tax credits by 10%. The IRS does not require a finding of willfulness to assess these penalties.
The §250 Deduction: Not Available to Individuals
Under IRC §250, a US C-corporation that includes GILTI in income may deduct a portion of that inclusion, reducing the effective US tax rate on GILTI. Individual US shareholders cannot claim this deduction. A US citizen who owns a French SAS personally, rather than through a US holding company, is taxed on any GILTI inclusion at full individual ordinary income rates without the §250 benefit.
A §962 election allows individual shareholders to elect to be taxed as if they were a US corporation on Subpart F and GILTI inclusions. This provides access to the §250 deduction and the indirect foreign tax credit under §960. The election creates a second layer of US tax when the CFC’s earnings are actually distributed, and requires careful modeling before use.
When to consult a specialist: Entity formation decisions are irreversible in material ways. The per se corporation classification attaches from the first day and cannot be undone by election. CFC reporting obligations and potential GILTI inclusions begin immediately. The §962 election, the high-tax exclusion election, and the choice between SARL and SAS social contribution structures all require modeling against individual facts before the entity is formed. Retroactive correction after the wrong structure has been in place for a year or more is substantially more costly than pre-formation planning. A qualified US–France tax specialist can assess your specific circumstances. Request Introduction.
Dividend Repatriation
Distributions from a French IS-subject entity to a non-resident shareholder are subject to French withholding tax. The domestic withholding rate is 25% for non-EU/EEA shareholders. Under Article 9 of the US–France treaty, the rate is reduced to 15% for general distributions and to 5% for recipients holding at least 10% of the entity’s voting stock. Claiming the treaty rate requires filing Form 5000 (attestation de résidence fiscale) with the French paying agent.
Compliance Obligations by Structure
| Structure | Key US Obligations |
|---|---|
| Micro-entrepreneur / EI | Schedule C (gross turnover); SE tax or French cotisations (totalization determines which); FBAR and Form 8938 for French business accounts |
| SASU / EURL (sole US owner) | Form 5471 (Categories 3, 4, 5); GILTI analysis and HTE election; Subpart F analysis; FBAR and Form 8938 |
| SAS / SARL (US persons own >50%) | Form 5471; GILTI and Subpart F; dividend WHT on distributions; §250 unavailable to individual shareholders |
| SAS / SARL (US person owns <10%) | Generally no Form 5471; PFIC analysis may apply if entity holds passive assets; FBAR and Form 8938 |
Technical Reference
Treas. Reg. §301.7701-2(b)(8): The per se corporation list. SARL, SAS, SASU, EURL, and SA are all listed. Classification is fixed; no check-the-box election is available for any of these entities.
IRC §957: CFC definition. US shareholders, each owning at least 10%, collectively owning more than 50% of a foreign corporation’s vote or value.
IRC §951: Subpart F income inclusions. Current-year gross income inclusion for qualifying passive and related-party income of a CFC, regardless of distribution.
IRC §951A: GILTI inclusion. Current-year inclusion for the US shareholder’s pro rata share of CFC net tested income above the 10% QBAI routine return.
Treas. Reg. §1.951A-2(c)(7): GILTI high-tax exclusion. Income subject to a foreign effective tax rate above 18.9% (90% of the 21% US corporate rate) may be excluded from the GILTI inclusion by annual election.
IRC §250: §250 deduction for GILTI inclusions. Available to US C-corporations only; not available to individual US shareholders.
IRC §962: Election for individuals to be taxed as US corporations on CFC income inclusions. Provides access to §250 and §960 indirect foreign tax credit; creates a second tax layer on subsequent distribution.
IRC §6038(b): Form 5471 penalty structure. $10,000 per corporation per year for initial failure; continuation penalties of $10,000 per 30-day period; FTC reduction for sustained failure.
Art. 219 CGI: French IS rate structure. Standard rate: 25%. Reduced rate: 15% on the first €42,500 for qualifying SMEs meeting capital and revenue conditions.
Art. 9, US–France Treaty (1994): Dividend withholding rates. 5% for recipients holding at least 10% of voting stock; 15% for all other recipients. Domestic rate is 25%.
Frequently Asked Questions
Can I use a French SARL as a pass-through entity for US tax purposes?
No. The SARL is on the Treasury Department’s per se corporation list under Treas. Reg. §301.7701-2(b)(8). It is automatically classified as a foreign corporation for US tax purposes and cannot be reclassified through a check-the-box election. Income earned by the SARL is not taxed at the US shareholder level until distributed as a dividend, unless Subpart F or GILTI inclusions apply in the current year.
What is the simplest business structure for a US citizen freelancing in France?
The micro-entrepreneur regime is the simplest structure from a French administrative standpoint. From a US perspective, it produces Schedule C reporting, with the caveat that French taxable income (calculated using the flat-rate abattement) differs from the US Schedule C net profit (gross turnover minus actual expenses). The totalization agreement determines whether US self-employment tax or French social contributions (cotisations) applies to earned income.
Do I owe US tax on profits inside my French company before I take a distribution?
Yes, potentially. If the French company qualifies as a CFC, US shareholders may owe tax on Subpart F income and on GILTI in the year the income is earned by the company, regardless of whether any distribution is made. French corporate income tax paid at the standard 25% rate typically eliminates GILTI exposure under the high-tax exclusion, but Subpart F income and the reduced IS rate tranche require separate analysis.
What is Form 5471 and when does it apply?
Form 5471 is an information return filed annually by US persons with qualifying interests in foreign corporations. Any US citizen who forms or acquires 10% or more of a French SARL, SAS, SASU, or EURL must file Form 5471 for that entity. The sole owner of a French entity is simultaneously a Category 3, Category 4, and Category 5 filer. The base penalty for failure to file is $10,000 per corporation per tax year.
Is there a way to access the §250 GILTI deduction as an individual?
Not directly. The §250 deduction is available only to US C-corporations. An individual US citizen who owns a French CFC directly cannot claim it. A §962 election allows the individual to elect to be taxed as a US corporation on Subpart F and GILTI inclusions, providing access to §250 and the indirect foreign tax credit. The election is complex and creates a second tax layer when earnings are actually distributed. Specialist review is required before making this election.
Does incorporating in France protect my personal assets?
Yes, from a French law perspective. The SARL, SAS, SASU, and EURL provide limited liability protection separating the shareholder’s personal assets from the entity’s obligations. This limited liability under French law does not affect the US tax treatment of the entity: the entity remains a foreign corporation for US purposes, with all associated reporting and income inclusion consequences.