What is a SASU?

✅ In brief

A SASU is a French company with a single shareholder. It lets you create a company alone, with a more complete structure than the micro-entreprise regime.

🧭 What you need to know

SASU means société par actions simplifiée unipersonnelle.
It has legal personality separate from its shareholder.
It is often used for a solo project that may evolve, bring in investors or become a SAS.
The company officer is generally called the président.

🛠️ How Leegal supports you

Leegal helps you understand the wording shown during the creation process and prepare a clearer file.
The flow can organize information, documents and points to watch, but it does not replace a personalized review.
If your situation is specific, it is still preferable to ask a chartered accountant, a lawyer or another qualified professional for advice.

🔎 Points to check

The planned share capital (capital social).
The role of the président and any remuneration.
The tax regime and TVA options.
Mandatory official fees, especially registry fees (frais de greffe), beneficial ownership declaration and publication of a legal notice (annonce légale).

⚖️ Limits to know

Leegal is not a law firm or an accounting firm.
Leegal explains the options and helps prepare formalities, but does not choose for you.
Tax, social security or personal asset consequences can depend on your actual situation.

📌 Key takeaway

The SASU can fit some structured solo projects, but it requires more formalities than a very simplified regime.

Updated on: 06/07/2026

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