Share Capital: What Each Structure Requires
The SA requires a minimum capital of €37,000 — a statutory floor that cannot be waived. The SAS and the SARL have no statutory minimum. The SAS has a capital option unavailable to the SA: variable capital (Arts. L 231-1 to L 231-8) — under a variable capital clause, the SAS can increase or decrease capital without the formal procedure for ordinary capital changes, provided movements stay within the maximum and minimum thresholds fixed in the articles (floor: at least one-tenth of stated capital). The SAS also uniquely accepts apports en industrie (Art. L 227-1 al. 4) — contributions of services, expertise, or know-how; shares issued in exchange are inalienable and do not contribute to stated capital but carry full economic and voting rights.
Governance: The Central Difference
In a SARL, critical governance rules are set by statute: managers must be individuals; ordinary decisions require a majority of shares; extraordinary ones require two-thirds. There is no mechanism for differential voting rights. The SA operates under France's most elaborate statutory governance framework — designed for widely-held public companies, it sits awkwardly on most closely-held businesses. Its sole irreplaceable advantage: it is the only form that can be listed on a regulated French market. In a SAS, governance is almost entirely statutory-free. The law requires only a president and that the articles specify how the company is managed. The full menu of investor-grade instruments is available: multiple voting rights, preference shares with priority returns, redemption rights, veto rights on strategic decisions, drag-along and tag-along protections — all enforceable within the articles themselves.
Venture capital and private equity investors overwhelmingly structure their French investments through the SAS. The reason is contractual precision: the SAS allows investors to negotiate preference shares with priority returns, anti-dilution ratchets, enhanced information rights, veto rights on strategic decisions, and bespoke exit mechanisms — all enforceable within the articles themselves. Any company expecting external investment within the first few years of its life should form as a SAS from day one.
Management Social Status
In a SARL, the manager's social insurance regime depends on their shareholding: a majority manager is classified as an independent worker (travailleur non-salarié); a minority or equal manager is subject to the general employees' social security regime. In both the SA and the SAS, all remunerated directors — the president and directeur général — are subject to the general employees' regime regardless of their shareholding level. A president of a SAS who holds 90% of the shares receives the same social coverage as a 1% shareholder, provided they receive remuneration. Only the SAS allows a legal entity to serve as its management officer — a holding company or parent entity can be president of a SAS subsidiary, exercising the function through its own legal representative. This is impossible in the SARL and SA.
Which Structure Fits Which Situation?
- Startups expecting external investment (VC, PE, business angels)
- Holding companies and group structures
- Founders wanting general social regime regardless of shareholding level
- Joint ventures between companies needing tailored governance
- Companies issuing preference shares or complex equity instruments
- Founders wanting a legal entity as president
- Early-stage companies that may benefit from the 5-year partnership tax election
- Simple owner-managed businesses with no external investors expected
- Founders comfortable with the independent worker social regime
- Family businesses where statutory share transfer restrictions add protection
- Very small operations where statutory governance simplicity outweighs flexibility
- Companies with a medium-term stock market listing strategy
- Large companies requiring institutional governance architecture
- Regulated entities (certain finance, insurance) required by sector law to be SAs
- Cross-border transactions where counterparties require SA form
Full Comparison at a Glance
| Feature | SAS | SARL | SA |
|---|---|---|---|
| Minimum share capital | None (€1 possible) | None (€1 possible) | €37,000 |
| Minimum shareholders | 1 (SASU if sole) | 1 (EURL if sole) | 2 (7 if listed) |
| Legal entity as president/manager? | Yes | No — individual only | No — individual only |
| Social regime — remunerated director | General employees' regime (always) | Independent workers (majority manager); general regime (minority/equal) | General employees' regime (PDG, DG) |
| Governance flexibility | Very high — articles govern | Limited — statute governs | Very low — detailed statute |
| Multiple / differential voting rights? | Yes — freely in articles | No statutory mechanism | Possible with conditions |
| Preference shares / investor equity? | Full menu available | Not available | Available with formalities |
| Industry contributions (services for shares)? | Yes — unique to SAS | Yes (with conditions) | Not in this form |
| Variable capital option? | Yes | Yes | Prohibited |
| Stock market listing possible? | No | No | Yes — only form permitted |
| Partnership tax election (5 years)? | Yes — Art. 239 bis AB CGI | Yes — different conditions | No |
| Share transfer to third parties | Free in principle; articles can restrict (transfer in breach = null) | Statutory approval required (50% of capital) | Free in principle; articles can restrict |
| Statutory auditor (CAC) mandatory? | When 2 of 3 exceeded: €5M balance sheet / €10M turnover / 50 employees. Group subsidiaries: €2.5M / €5M / 25 if group head has CAC | Same thresholds as SAS (Pacte 2019) | Always for listed SA; same thresholds as SAS for closely-held SA (Pacte 2019) |
| Regulated transactions | Post-facto shareholder approval; no pre-authorisation; indirect interest not caught; director not stripped of vote (Art. L 227-10) | Prior authorisation required; all managers and shareholders covered regardless of %; broad scope | Prior board authorisation required; shareholder ratification; broad scope covering all directors and significant shareholders |
| Conversion to SAS | — | Requires unanimity + commissaire à la transformation (if no CAC) (Art. L 224-3) | Requires unanimity + 2 years' existence + CAC net assets report (Art. L 225-244) |
- External investors expected within 3 years? If yes, the SAS is almost certainly the right choice — investor-grade preference share structures require it. Implementing equivalent protections in a SARL or SA is significantly more constrained.
- Stock market listing part of your medium-term strategy? If yes, only the SA qualifies — the SAS and SARL are legally prohibited from accessing regulated markets.
- Will the founder-manager hold more than 50% of the capital? In a SARL, that triggers the independent workers' social regime. In a SAS, the general employees' regime applies regardless of shareholding level.
- Do you need a legal entity rather than an individual as the management officer? Only the SAS allows this — a holding company or parent entity can be president of a SAS subsidiary.
- Will any founder contribute services rather than assets? The SAS's apports en industrie mechanism (Art. L 227-1 al. 4) is uniquely suited to this — shares in exchange for ongoing expertise, without those shares entering the stated capital.
The choice of legal form has compounding tax, governance, and social consequences over the life of a business. A wrong choice at inception costs significantly more to correct than getting it right at the start. We advise foreign founders, investors, and groups on French company structure selection and formation strategy.
Discuss Your ProjectThis article is for general information only. It does not constitute legal advice. The choice of legal structure depends on facts specific to each situation. Always seek qualified legal advice before making a final decision on company form in France.
Key Legal References
SAS general framework — contractual governance; president; articles determine management conditions
SA minimum capital: €37,000 mandatory floor
Variable capital: SAS can adopt variable capital structure; floor at least one-tenth of stated capital
Industry contributions (apports en industrie): inalienable shares; carry full economic and voting rights; unique to SAS
Five-year partnership tax election for SAS: conditions, unanimous consent, 3-month notification deadline
Corporate income tax rates: standard 25%; reduced 15% on first €42,500 for qualifying companies
SAS regulated transactions: post-facto approval; indirect interest not caught; director not stripped of vote
Transformation into SAS requires unanimous shareholder approval — no exception
Transformation SARL to SAS: commissaire à la transformation required if no statutory auditor already in place
Transformation SA to SAS: requires 2 years' existence + 2 approved sets of accounts + CAC net assets report
