French VAT number calculator
Build a French intra-community VAT number from a SIREN or SIRET, or check its key.
9 digits (SIREN) or 14 digits (SIRET): only the first 9 are used.
French number: FR, 2 key characters, then the 9 digits of the SIREN. Spaces are accepted.
- Key
- SIREN
The calculation rebuilds the mathematical form of the number. It does not prove that the company is registered for VAT or that its number is active: only the European Commission’s VIES service confirms that. Nothing is sent from this tool.