How to Set Up a SARL or SAS in France as an American: When You Need a French Company and How to Register One

For most Americans who want to work independently in France, the micro-entrepreneur regime is the logical starting point: low overhead, simple accounting, and easy to launch through URSSAF. But micro-entrepreneur status has hard revenue ceilings, excludes certain professional activities, and does not create a separate legal entity. When you have a French co-founder, need to deduct business expenses, are seeking investment, or when your clients or bank require a formal company structure, a SARL or SAS becomes the appropriate path. This article explains which structure fits your situation, what the registration process looks like in 2026, and what US tax reporting obligations are triggered the moment you form a French company. This article is for informational purposes only and does not constitute tax or legal advice. Tax rules are complex and change frequently: consult a qualified cross-border tax professional before making any filing or planning decisions.

SARL vs SAS: What Each Structure Does and Which One Fits You

A SARL (Société à Responsabilité Limitée) is the French limited liability company. It can have between 2 and 100 shareholders, or a single associate in the single-member variant called an EURL (Entreprise Unipersonnelle à Responsabilité Limitée). The SARL is managed by a gérant, and the gérant's social contribution regime depends on their ownership share. A gérant who holds more than 50% of the shares (gérant majoritaire) falls under the TNS regime (Travailleurs Non Salariés), with contributions collected through the Sécurité Sociale des Indépendants. A gérant who holds 50% or less (gérant minoritaire or égalitaire) falls under the assimilé-salarié regime, which resembles the employee social security system.

A SAS (Société par Actions Simplifiée) is more flexible in governance and is the dominant structure for startups, multi-partner ventures, and companies anticipating outside investment. The SAS is led by a président, who is always classified under the assimilé-salarié regime regardless of ownership stake. The SAS has no maximum number of shareholders and no statutory minimum capital beyond €1. The single-person variant is called a SASU (Société par Actions Simplifiée Unipersonnelle).

What we see most often is Americans defaulting to the SAS or SASU because it appears in startup literature and feels closer to the US LLC. What that framing misses is the social contribution cost difference. The président of a SAS pays significantly higher charges than a gérant majoritaire of a SARL, because the assimilé-salarié regime involves both employer and employee portions. For a solo operator paying themselves 50,000 euros per year, the difference between the two regimes can represent several thousand euros annually in additional social charges.

Neither structure is universally better. The SARL/EURL is generally preferable for solo operators focused on minimizing social charges. The SAS/SASU is generally preferable when investor readiness, complex governance, or multi-associate flexibility matter more than social charge optimization.

When You Need a Formal Company Instead of Micro-Entrepreneur Status

The micro-entrepreneur regime works well for American freelancers starting out in France, but it has structural limits that make a SARL or SAS the right choice in specific situations.

You need a SARL or SAS when your annual revenue consistently or predictably exceeds the micro-entrepreneur ceilings, which as of 2026 stand at approximately 77,700 euros for service activities and 188,700 euros for commercial activities.

You also need a formal company when your activity requires actual expense deductions. The micro-entrepreneur regime uses a flat-rate abatement rather than real accounting: you cannot deduct your actual costs against revenue. If your business has significant operating expenses, such as equipment, subcontractors, software, or professional services, the inability to deduct these under the micro-entrepreneur regime can make it far less tax-efficient than a société operating under the régime réel.

Other clear triggers: you have a French co-founder or business partner and need a shareholder agreement; your clients or a contracting company require a formal legal entity with its own SIRET and Kbis rather than a micro-entrepreneur registration; you are raising outside investment or negotiating equity; or your regulated activity legally requires a société structure.

One situation that is specific to Americans: if you are applying for a Passeport Talent visa as an investor or company founder, having a formal société, or being in the process of forming one, is part of the application. See our guide on the Passeport Talent visa for Americans for the qualifying criteria.

The Social Contribution Regime: The Decision Americans Most Often Get Wrong

The choice between SARL (gérant majoritaire) and SAS (président) has direct consequences for your monthly social charges. This is the most consequential decision Americans make when forming a French company, and it is also the one most commonly made without adequate analysis.

Under the TNS regime, applicable to a gérant majoritaire of a SARL, social contributions on remuneration typically run between 40% and 45% of net remuneration for moderate income levels, depending on your income bracket and the year's calculation. This covers health, retirement, disability, and family benefits, but provides lower unemployment protection and a different pension calculation than the employee system.

Under the assimilé-salarié regime, applicable to SAS présidents and SARL minority gérants, the combined employer and employee portions together typically represent 60% to 75% of net equivalent remuneration. In exchange, the assimilé-salarié regime provides better social protection on paper. However, SAS présidents are not entitled to unemployment insurance from France Travail (formerly Pôle Emploi) the way an employee would be, which significantly reduces the practical advantage of the higher contribution rate.

This has a direct implication for Americans who are also managing US self-employment tax or who are trying to apply the US-France Totalization Agreement to avoid dual social security contributions. The type of French regime you are covered under affects how the Totalization Agreement interacts with your US obligations. See our article on US Social Security benefits and the France Totalization Agreement for the broader framework.

A SARL can also elect to be taxed at the individual income tax level (IR) rather than at the corporate IS level, under certain conditions and for a limited period. This is a nuance worth discussing with a French tax advisor if you are in the early stages and want to preserve flexibility on how company profits are taxed.

Your US Tax Reporting Obligations When You Own a French Company

This is the section that almost every online resource on French company formation for foreigners omits. Forming a French SARL or SAS does not just create a French tax obligation. It creates US reporting requirements that are separate from and additional to your regular Form 1040. The tax picture for an American who is both director and shareholder of a French company differs significantly from salaried employment and from micro-entrepreneur status, and the US obligations do not disappear. Our guide to self-employment taxes for Americans in France covers the dual US-France filing obligations that apply regardless of how your company is structured.

If you own 10% or more of a foreign corporation, and a French SARL or SAS qualifies as a foreign corporation for IRS purposes, you are required to file Form 5471 with your annual US tax return. Form 5471 is an information return, not a payment form, but the penalties for failure to file start at $10,000 per year per company, and they accumulate quickly.

If you and any other US shareholders collectively own more than 50% of the voting power or value of the French company, the company is a Controlled Foreign Corporation (CFC). CFC status triggers the Subpart F income rules, which means certain types of passive income earned inside the company can be taxable to you as a US shareholder even before any dividends are distributed.

The GILTI (Global Intangible Low-Taxed Income) provisions may also create taxable US inclusions on undistributed profits from your French company, depending on the company's activities and how much French corporate tax has been paid. French corporate income tax (IS) is currently 25% for most companies, which often generates foreign tax credits that reduce or eliminate US GILTI exposure, but the mechanics of that calculation require professional guidance.

In our experience, Americans discover these reporting obligations after running their French company for one or two years, when a US CPA finally raises the issue during tax preparation. Retroactive Form 5471 filings and CFC disclosures are possible but create complexity and stress that are entirely avoidable. If you are planning to form a SARL or SAS, engage a US-qualified cross-border tax professional before you register the company, not after.

How to Register Your SARL or SAS Through the French Guichet Unique

Since January 2023, all French company registrations go through the centralized Guichet unique des formalités des entreprises. The previous system of registering directly with the greffe du tribunal de commerce or through a Centre de Formalités des Entreprises is no longer in operation for most company types.

The registration process involves the following steps:

Draft and sign your statuts (articles of association). For a SARL or SAS with multiple associates, the statuts define the governance structure, shareholder rights, management rules, and share transfer conditions. Single-associate EURL and SASU founders can use standard statut templates, though these should be reviewed for alignment with your actual intentions.

Open a blocked capital deposit account at a French bank and deposit your initial share capital. The bank issues an attestation de dépôt de fonds confirming the deposit. This document is required for registration.

Publish an avis de constitution (legal notice of incorporation) in a journal d'annonces légales (JAL). This is a statutory requirement with a fixed cost set by decree.

Submit your registration dossier through the Guichet unique portal. The portal consolidates your filing with the greffe, URSSAF, INSEE (for SIRET assignment), and the tax administration (for IS registration). The Guichet unique then dispatches the information to the relevant bodies.

Receive your Kbis (extrait Kbis), the official proof of your company's legal existence, along with your SIRET and SIREN numbers.

In practice, the Guichet unique platform has a meaningful learning curve for first-time registrants navigating it in French without prior experience of the French administrative system. Errors in the statuts or incorrect entries in the registration form can delay the Kbis by one to three weeks. Document correction requests from the Guichet unique arrive without explanation, and responding to them requires understanding which field caused the issue.

What Documents Americans Need to Form a French Company

As a non-EU national forming a French company as gérant or président, the standard document requirements include:

A valid passport copy, sometimes requiring certification or apostille depending on the registration platform you use.

A completed déclaration sur l'honneur de non-condamnation (declaration of non-conviction), confirming you have not been convicted of offenses that would disqualify you from managing a French company. This is a standard requirement for all company managers and is self-certified.

Proof of your right to operate commercially in France. If you are already resident in France on a visa that authorizes independent professional or commercial activity, your titre de séjour or VLS-TS serves as this proof. If you are based outside France, you can still form a French company, but you will not be able to manage it on French soil without appropriate authorization.

A French address for the siège social (registered office). Your personal address in France can serve as the siège social. If you are not yet resident in France or prefer a professional address, a domiciliation service provides a legal siège social address for a monthly fee.

A French bank account for the capital deposit and ongoing company operations. This is often the practical bottleneck for Americans: French banks require significant documentation from non-residents or recent arrivals, and the process takes time. See our guide on opening a French bank account as an American for what to prepare.

Costs and Timeline for SARL or SAS Registration in 2026

The base out-of-pocket costs for registering a SARL or SAS in France in 2026 break down as follows:

Greffe registration fee: approximately 40 to 70 euros depending on the structure and greffe.

Legal notice publication (avis de constitution): approximately 150 to 250 euros, depending on the journal and the length of the notice.

Statuts drafting: using an online legal platform (Legalstart, Captain Contrat, or similar), expect 200 to 600 euros for an assisted registration. Engaging a notaire or business lawyer for fully custom statuts typically costs 1,000 euros and above.

Capital deposit account opening: generally free at most banks, though some charge setup fees for business accounts.

Total out-of-pocket costs for a straightforward SASU or EURL via an online platform typically range from 400 to 900 euros.

For timeline: budget 10 to 20 business days from statuts finalization to receiving your Kbis under normal conditions. Document correction requests add another 5 to 10 business days. The capital deposit step is often the longest element: some French banks take one to three weeks to open a business account for a new registrant, particularly for Americans who are recent arrivals with limited French banking history.

One circular dependency that trips up Americans regularly: some banks will not open a blocked capital deposit account without a preliminary registration number, but the registration process requires the bank attestation. In our experience, Société Générale Pro and BNP Paribas Pro are generally more flexible about accepting draft statuts and a founder passport to begin the capital deposit process than fully online business banks.

Common Mistakes to Avoid

Choosing the SAS without modeling the social charge cost. The SAS is presented as the modern, flexible structure, and it is, but the assimilé-salarié social contribution regime is meaningfully more expensive than the TNS regime of a SARL gérant majoritaire. For a solo operator, the annual cost difference can be 3,000 to 6,000 euros or more depending on remuneration level. What we see most often is Americans choosing the SAS reflexively because it is more widely discussed, without running the numbers for their specific salary level.

Ignoring Form 5471 and CFC reporting. In our experience, this is the most costly mistake American business owners in France make, and the one that creates the most expensive surprises at tax time. The assumption that forming a French company is a purely French matter is incorrect. The IRS requires disclosure of foreign corporate interests above the 10% threshold, and penalties for non-filing are significant. This obligation exists regardless of whether you take a salary or leave profits inside the company.

Treating French statuts as a formality. Generic statuts templates are widely available online and work acceptably for standard solo structures. For any multi-associate structure, however, generic templates often fail to address share transfer rights, management decision thresholds, or founder vesting correctly. Discovering a statuts ambiguity during a shareholder dispute is considerably more expensive than having a lawyer review the founding documents.

Assuming a French company and a US LLC are equivalent for tax purposes. A French SAS is a corporate taxpayer subject to IS by default. A US LLC is fiscally transparent by default. The difference matters when you calculate how earnings flow from the French company to you personally, and how those earnings interact with your US return. What looks like a simple dividend from a French perspective may trigger Subpart F inclusions or GILTI exposure at the US level, depending on the company's activities and income composition.

Practical Checklist

• Confirm that your visa or residence status authorizes commercial or independent professional activity in France

• Decide between SARL/EURL (TNS social regime) and SAS/SASU (assimilé-salarié social regime) based on your projected remuneration and contribution tolerance

• Draft your statuts using a legal platform or a business lawyer, depending on structure complexity

• Identify your siège social address and arrange a domiciliation agreement if needed

• Open a blocked capital deposit account at a French bank that accepts new-resident business clients

• Publish your avis de constitution in a journal d'annonces légales

• Submit the full registration dossier through the Guichet unique at formalites.entreprises.gouv.fr

• Receive your Kbis and SIRET number

• Register with URSSAF as gérant or président for social contribution declarations

• Engage a cross-border tax professional to set up Form 5471 filing before your first US tax return after incorporation

• Open a French business operating account (separate from the capital deposit account) if not already done

• Review your US CFC status, GILTI exposure, and IS/French tax position with a professional familiar with both systems

When to Get Help

The Guichet unique registration itself is manageable if you are comfortable in French and already have your statuts drafted. The harder part is not the registration but the planning: choosing the right structure, modeling the social contribution impact, and ensuring your US reporting obligations are set up correctly from day one.

For Americans forming a company with outside investors, multiple associates, or any non-standard governance arrangement, professional legal support for the statuts is strongly recommended. For the US tax side, professional guidance is not optional: the intersection of CFC rules, Form 5471 obligations, GILTI, and the French IS system requires a specialist in cross-border taxation.

If opening a French business bank account is blocking your registration, our Banking Unblocker service can help navigate that step. For a structured review of your French and US obligations from company formation through your first French tax filing, our First-Year Tax Orientation service is designed for exactly this situation.

FAQ

Can an American form a SARL or SAS in France without being a French resident?

Yes. French company law does not require the founder, gérant, or président to be a French resident or EU national. You can incorporate a SARL or SAS in France as a US citizen living outside France. However, you will need a French address for the siège social, a French bank account for the capital deposit, and a right to manage the company on French soil if you intend to physically direct its operations from France. For non-resident founders, the practical challenge is typically the French bank account and siège social address, both of which can be addressed through a domiciliation service and a bank that accepts non-resident business clients. If you plan to relocate to France and manage the company there, your visa must authorize the relevant professional activity.

What is the difference between a SASU and a micro-entrepreneur for an American freelancer in France?

A micro-entrepreneur is not a company. It is a simplified self-employment regime under which you operate as an individual with a SIRET number but no separate legal entity, no limited liability, and no real accounting. A SASU is a one-person SAS, a fully incorporated legal entity with limited liability, corporate income tax status, and the ability to deduct all actual business expenses. Micro-entrepreneur status is simpler to manage and cheaper to run at low revenue levels but has revenue ceilings and no expense deductibility. A SASU has no revenue ceiling, full expense deductibility, and creates legal separation between personal and company assets, but requires annual accounting, financial statements, and higher social contributions. For most Americans starting out, the micro-entrepreneur regime is the right first step, with transition to a SASU or EURL when revenue grows or structure requires it.

Does owning a French SARL or SAS trigger US tax reporting obligations beyond my regular income return?

Yes. If you own 10% or more of a French SARL or SAS, you are required to file Form 5471 with your annual US tax return, as the company qualifies as a foreign corporation for IRS purposes. If you and any related US shareholders collectively own more than 50%, the company is a Controlled Foreign Corporation, which triggers additional Subpart F and GILTI analysis. These obligations apply regardless of whether the company distributes profits to you. The penalty for failure to file Form 5471 is $10,000 per year per company. These requirements apply from the first year of ownership and are not automatically disclosed to you by the French registration system.

How long does it take to register a SARL or SAS in France in 2026?

With a complete and correct dossier, the Guichet unique typically processes a registration in five to ten business days. If the platform returns a document correction request, add another five to ten business days for the correction cycle. The capital deposit bank account is often the longest step: French banks typically take one to three weeks to open a business account for a new registrant, particularly for Americans with limited French banking history. The legal notice publication takes one to three business days. Total time from starting the statuts to receiving your Kbis is typically three to five weeks for a well-prepared applicant with no complications.

Conclusion

A French SARL or SAS gives Americans the legal infrastructure to operate professionally in France beyond the micro-entrepreneur ceiling. The decision between structures has real consequences for your social contribution costs and your French and US tax exposure, and it should be made with both sides of the equation in mind before you register, not after.

If you are forming a French company and want a clear, structured view of your US and French obligations from day one, our First-Year Tax Orientation service is designed for business owners in France who want to get their filing structure right from the start.