French Social Security Number (Numéro de sécurité sociale)
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The Numéro de sécurité sociale identifies you with Assurance Maladie and other agencies. Employers use it for payroll and contributions.
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Where to find it
On official letters from Assurance Maladie (CPAM), on your payslip, or your Ameli account.Why it matters
Required for payroll, healthcare reimbursements, and many administrative procedures.What to do now
- Create/verify your Ameli account
- Check payslips or CPAM letters for the number
- Report inaccuracies to CPAM
Related
Guides
- Get your French Tax Number (numéro fiscal)
- Declare French income taxes online
- Find your avis d’imposition
- Register as auto-entrepreneur with URSSAF
- Get French health insurance (CPAM + Carte Vitale)
- Sign up for a mutuelle
- Pay taxe foncière
- Understand taxe d’habitation
- Obtain a quitus fiscal for a foreign car
- Request an attestation de résidence
More terms
- French Tax Number (Numéro fiscal)
- Carte Vitale (Health Insurance Card)
- Tax Notice (Avis d’imposition)
- Proof of Address (Justificatif de domicile)
- Bank Details (RIB)
- Pôle emploi Registration
- URSSAF for Self‑Employed (Auto‑entrepreneur)
- Quitus fiscal (Vehicle Import)
- Income Tax Return (Déclaration des revenus)
- Ameli Account (Assurance Maladie)
FAQ
Yes, the number printed on your Carte Vitale is your social security number.
Apply via CPAM; new arrivals may receive a temporary number first.
Yes, minors are assigned a number for healthcare coverage.
Yes, it's also called the INSEE number.
