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CAF and benefits

Where do I find my CAF beneficiary number?

Your beneficiary number (7 digits) is written at the top left of every CAF letter and at the top of your “Mon compte” area on caf.fr.

Fictitious model: Letter or notification from the CAF Top left of the letter, below your CAF's address, line “Numéro d'allocataire” Beneficiary number 7 digits (sometimes 8) Fictitious document · Letter or notification from th
Fictitious model of “Letter or notification from the CAF”. Area: Top left of the letter, below your CAF's address, line “Numéro d'allocataire” · Format: 7 digits (sometimes 8).

Where to find it online

  • On caf.fr or the “Caf - Mon Compte” app, the number is shown as soon as you sign in, in the account header.
  • It is also on the payment and family quotient certificates downloaded from your account.
  • The number belongs to the file: it is the same for the whole household.

If you have lost it

  • On the caf.fr sign-in page, click “J'ai oublié mon numéro”: it can be sent to you by post.
  • You can also call 3230 (free service + cost of a call) or go to your CAF's reception desk with an ID.
  • If you belong to the MSA (agricultural scheme), the number is on MSA letters and in “Mon espace privé” on msa.fr.

Official sources

Checked on 28/09/2026.

See also

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