French Change-of-Address Letter — Multiple Agencies

There is no single blanket obligation, but targeted requirements apply. Your vehicle registration certificate (carte grise) must be updated within one month of moving — failure to do so risks a fixed fine of €135. Social-security bodies such as the CAF (family benefits) and CPAM (health insurance) must be informed promptly, as delays can suspend or postpone your benefit payments. For income tax, your address is updated when you file your annual return or via your personal space on impots.gouv.fr.

The key recipients are: CAF or MSA (family or agricultural benefits), CPAM (national health insurance), URSSAF (if you are self-employed or a micro-entrepreneur), the tax authority, your pension fund (caisse de retraite), France Travail (if you are a job-seeker), your bank, private mutuelle (supplementary health insurer) and other insurers, your employer, energy and internet providers, and the ANTS website for your vehicle registration update.

The 'Je change de coordonnées' teleservice transmits your new address to the public-sector partners you select — typically CAF/MSA, CPAM, France Travail, pension funds, and energy providers. The tax authority and health insurance also benefit from automatic updates tied to your declarations and personal online space. In practice, always log in to impots.gouv.fr, ameli.fr, and urssaf.fr after moving to confirm that the new address has been correctly recorded in each account.

You have one calendar month after your move to declare your new address on the ANTS website (immatriculation.ants.gouv.fr). Missing this deadline exposes you to a fourth-class fixed fine of €135 (contravention de 4e classe). The entire procedure is online and free of charge. You receive a digital registration certificate (e-CIV — certificat d'immatriculation électronique); no physical adhesive sticker is issued under the current dematerialised system. Avoid third-party intermediary websites that charge for this free service.

Private-sector organisations — banks, private mutuelles (supplementary health insurers), and commercial insurers — are not covered by the government teleservice. Send them the template letter with your customer or contract reference number, your new address, and the effective date. For sensitive contracts such as banking and insurance, send by recorded post (lettre recommandée avec accusé de réception) to retain dated proof of notification, which protects you in the event of a dispute, contract transfer, or cancellation.

Yes, if you are self-employed (travailleur indépendant) or registered as a micro-entrepreneur. Update your personal and professional address via your account on urssaf.fr. If your business address is also changing, you must additionally file the change with the INPI's single business window (guichet unique — guichet-entreprises.fr) to update the legal registers, such as the Registre du commerce et des sociétés (RCS) or the Répertoire des métiers — this step cannot be completed through URSSAF alone.