Statement of cohabitation
To certify that you live as a couple at the same address.
The template text in French (the one on the document) — « Attestation de vie commune »
The document starts with « Je soussigné(e) [your name], born on…, residing at…, » (I, the undersigned) … « atteste sur l'honneur que : »
je vis en couple avec [Prénom NOM], né(e) le [date de naissance] à [lieu de naissance], à l'adresse indiquée ci-dessus, depuis le [date].
Cette attestation est établie pour servir et valoir ce que de droit.
Translation (to understand)
I have been living as a couple with [First name SURNAME], born on [date of birth] in [place of birth], at the address given above since [date].
This statement is issued to serve whatever legal purpose it may.
When to use it? Health insurance, CAF, bank, landlord, embassy: when you must prove you live as a couple without marriage or PACS.
Good to know: ideally, each partner signs their own statement, with a copy of their ID.