I moved — how and where do I register my new address?

Direct answer

Registering your address is compulsory within a short deadline after moving (days to weeks, depending on the country) and everything official flows from it: the ID number, tax, voting, health insurance, school places. Register at Mairie — état civil / service-public.fr (service-public.fr) — online with a digital ID in many countries, otherwise at Centre des finances publiques — réclamation / impots.gouv (0 809 401 401) — with ID and proof of the new address (rental contract, deed, or the landlord's or host's declaration). CPAM (Assurance Maladie) — 3646 (3646) and the other agencies are informed automatically in most countries — but check your tax and benefit accounts after a few weeks.

Call firstMairie — état civil / service-public.fr

Report toCentre des finances publiques — réclamation / impots.gouv

If that failsCPAM (Assurance Maladie) — 3646

🗣️ What to say

"I moved to [new address] on [date] from [old address / abroad]. I would like to register my address [and my family members: names]. Attached: ID and [rental contract / owner's declaration]."

🪜 Step by step

DeadlineCheck the days allowed — late registration can be fined.
DocumentsID for everyone moving, proof of address, for a move from abroad also birth/marriage certificates (multilingual form or apostille).
Online or in personMairie — état civil / service-public.fr online with digital ID; otherwise Centre des finances publiques — réclamation / impots.gouv by appointment.
Moving from abroadAlso: health insurance, the ID number if new, deregistration in the old country.
Mail forwardingThe postal service's redirection for a few months; update the bank, employer, insurers yourself.

📇 All contacts

Mairie — état civil / service-public.frCertificates, declarations, online change of addressFor any civil-status procedure🔗 www.service-public.fr

Centre des finances publiques — réclamation / impots.gouvTax objection, payment deadlinesBefore 31 December of the following year📞 0 809 401 401 🔗 www.impots.gouv.fr

CPAM (Assurance Maladie) — 3646Registered doctor, reimbursements, mediatorFor finding a doctor and coverage questions📞 3646 🔗 www.ameli.fr

Défenseur des droitsComplaints about public services, discrimination, children's rightsWhen the administration does not answer or acts unfairly📞 3928 🔗 www.defenseurdesdroits.fr

❓ Frequently asked

The landlord will not give me a declaration

Most countries let you register with the rental contract alone; if the landlord obstructs, Centre des finances publiques — réclamation / impots.gouv can register you on other evidence and the landlord may be fined.

Can I register in a friend's flat?

Yes, if you actually live there — with the friend's declaration. It can affect their benefits or taxes; tell them.

I have no fixed address

Municipalities offer a postal address for homeless residents so that benefits and documents work. Ask Centre des finances publiques — réclamation / impots.gouv or social services.

📎 Sources

Last checked: 2026-09-26

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🚚 I moved — how and where do I register my new address?