SAS or SARL: which legal form should your startup choose in 2026

In 2026, the SAS appeals to startups… but the SARL still has a role to play

The SAS has become the default choice for startups because of its flexible governance and suitability for fundraising. The SARL nevertheless remains relevant for controlled projects with early cash flow and a small decision-making team. The right choice depends on your growth objectives, incentive strategy and acceptable social contribution costs for the management team. The key rules remain governed by the French Commercial Code and French regulations, available on Legifrance and Service Public.

Key differences between SAS and SARL in 2026

• Flexibility of the articles of association: the SAS offers considerable organisational freedom (decision-making procedures, approval and exclusion clauses, vesting) under the Commercial Code (art. L.227-1 s.) (Legifrance). The SARL is more regulated (art. L.223-1 s.), offering certainty but less flexibility for complex transactions.
• Governance and social security status: the president of a SAS has employee-equivalent status (general scheme); the majority-shareholder manager of a SARL falls under the self-employed scheme (TNS–SSI), often less expensive but less protective. Minority-shareholder/equal-shareholder SARL managers have employee-equivalent status (Service Public).
• Number of shareholders: a SARL is limited to 100 shareholders; a SAS has no numerical limit (single-shareholder SASU/SARL forms are possible) (Service Public).
• Share capital and payment: a minimum of €1 for both forms. On incorporation, at least 50% of cash contributions must be paid up in a SAS and 20% in a SARL, with the balance within 5 years (Service Public). Both can adopt variable capital through a clause in their articles.
• Share transfers and transfer taxes: SARL shares (parts sociales) are in principle subject to approval and registration duties of 3% after an allowance, whereas SAS shares (actions) transfer more freely (depending on the articles) with registration duty of 0.1% (current tax rules, useful in practice for funding rounds) (Doug's and Service Public Pro).
• Fundraising and instruments: the SAS readily accommodates preferred shares (liquidation preference, ratchet…) under art. L.228-11 of the Commercial Code (Legifrance) and grants of BSPCE founder share warrants to key talent (a scheme specifically for companies limited by shares), which investors particularly value (AMF; BPI France).

When to favour the SAS for a startup

You are targeting rapid growth and successive funding rounds

• You need to bring in external investors with preferred shares, bespoke shareholders' agreements and clauses (L.228-11 C. com.) (Legifrance).
• You want to motivate your teams with BSPCE (reserved for companies limited by shares) and other incentive plans (AMF; BPI France).
• You need approval, exclusion, lock-up, double-voting and vesting clauses, freely configurable in a SAS (art. L.227-1 s.) (Legifrance).

Typical examples: B2B SaaS targeting Seed/Series A, a marketplace with multiple participants, deeptech seeking BPI + VC co-financing. The articles and shareholders' agreement require highly precise drafting to structure these mechanisms. Our Explore AI and law resources accelerate this work while avoiding mistakes that cost percentage points on the cap table.

When the SARL remains the best option

You prioritise early profitability and optimised social contribution costs

• Majority-shareholder manager with TNS self-employed status (SSI): social contributions are generally lower than in a SAS, useful with tight margins (Service Public).
• Simple governance governed by statute: suited to family businesses or structures with low shareholder turnover (art. L.223-1 s. C. com.) (Legifrance).
• Watch the majority-shareholder manager's dividends, however: the portion above 10% (capital + premiums + shareholder current-account contributions) attracts social contributions (Service Public Pro).

Limitations to anticipate: a maximum of 100 shareholders, approval often mandatory for transfers to third parties, and financial structuring (preferred shares, BSPCE) unavailable to a SARL in its existing form.

Tax and social security: points to settle

• Corporate income tax (IS) applies by default to SAS and SARL companies, with an option for personal income tax temporarily under certain conditions (tax-transparent partnership regime, for a limited period): check eligibility under the CGI (art. 239 bis AB) on Legifrance and Service Public.
• The executive's social security status: SAS president = employee-equivalent status (higher contributions, better protection); majority-shareholder SARL manager = TNS (lower contributions, more limited cover) (Service Public).
• Dividends: in a SAS, dividends do not generate social contributions for the president (taxed at the flat tax, PFU, unless another option is chosen), whereas in a SARL with a majority-shareholder manager, the portion exceeding 10% of the base (capital + premiums + current accounts) is subject to contributions (Service Public Pro).
• Share transfers: registration duties of 0.1% for SAS shares versus 3% for SARL shares after an allowance, making capital turnover during rounds smoother in a SAS (Doug's).

Governance and shareholders' agreements: anticipate conflicts

The SAS's freedom in drafting its articles is a strength… and a risk if poorly used. Provide from the outset for approval, pre-emption, lock-up, good/bad leaver, exclusion, compulsory transfer, quorum and appropriate majority mechanisms (art. L.227-1 s. C. com., Legifrance). In a SARL, the statutory framework reduces some blind spots but allows less precision in complex refinancing. Need a term sheet and a bespoke shareholders' agreement? Discuss your firm's AI transformation.

Formation formalities and timelines

• INPI single portal: all formalities (registration, filings, beneficial owners) are completed online through the INPI portal (INPI).
• Contributions: opening a blocked account, certificate, minimum payment (50% SAS, 20% SARL), drafting the articles, legal notice publication, filing the application (see Service Public Pro).
• Securities issues: if you approach the public or use regulated platforms, check prudential and disclosure requirements with the AMF.
• GDPR compliance: your choice of legal form does not exempt you from data protection obligations (DPO, records, legal basis): see the CNIL and, for the European framework, EUR-Lex.

Quick decision checklist

• Fundraising planned within 12–24 months, BSPCE and preferred shares needed → SAS.
• Rapidly profitable project, stable founding team, social contribution costs to optimise → SARL (majority-shareholder manager with TNS status).
• Frequent capital turnover, M&A/ESOP planned → SAS (more favourable securities and registration duties).
• Legally self-sufficient without a sophisticated shareholders' agreement → SARL (protective statutory framework), or SAS with professional advice.
• Whatever your choice: provide credible capital (above €1), a shareholders' agreement and a payment schedule consistent with your runway.

Want a 30-minute assessment with an execution plan and the right templates? Discuss your firm's AI transformation. You can also Explore AI and law resources and explore our articles on startup structuring.

Common mistakes to avoid in 2026

• Adopting a SAS without approval/exclusion/vesting clauses: an invitation to deadlock.
• Undercapitalising (€1–100): a negative signal to banks, BPI and investors (BPI France).
• Forgetting transfer taxes (0.1% versus 3%) in a secondary round.
• Misjudging the overall cost of a SAS president versus a SARL manager with TNS status.
• Neglecting GDPR/CNIL requirements while the product processes user data.

Further reading

See our related guides: The legal steps to creating your startup in France, Shareholders' agreements: essential clauses and Term sheets: understanding and negotiating the terms.

Quick FAQ

Is the SAS always better for fundraising?

Yes, in practice. Preferred shares (L.228-11 C. com.) and BSPCE make the SAS standard for VC/business angels. A SARL can raise funds, but with greater legal and tax friction (Legifrance; AMF).

Can you switch from a SARL to a SAS later?

Yes, through conversion with a conversion auditor and shareholder resolutions. Anticipate the effects on the executive's social security status and minority shareholders' rights (Service Public Pro).

Which form best protects the executive?

The SAS (employee-equivalent status) offers better social security protection at the cost of higher contributions. The SARL (TNS for a majority-shareholder manager) is more economical but less protective (Service Public).

Variable capital: only for SAS companies?

No. A variable-capital clause can be included in the articles of both a SAS and a SARL. It is nevertheless more common and easier to operate in a SAS (Service Public Pro).

Need a comparison with figures and a structuring plan based on your product/finance roadmap? Discuss your firm's AI transformation.