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 Commune — bureau de la population / MyGuichet.lu (guichet.public.lu) — online with a digital ID in many countries, otherwise at Administration communale (guichet.public.lu) — with ID and proof of the new address (rental contract, deed, or the landlord's or host's declaration). Administration des contributions directes — réclamation (247-52000) and the other agencies are informed automatically in most countries — but check your tax and benefit accounts after a few weeks.

Call firstCommune — bureau de la population / MyGuichet.lu

Report toAdministration communale

If that failsAdministration des contributions directes — réclamation

🗣️ 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 personCommune — bureau de la population / MyGuichet.lu online with digital ID; otherwise Administration communale 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

Commune — bureau de la population / MyGuichet.luArrival declaration, residence certificatesWithin 8 days of arriving🔗 guichet.public.lu

Administration communaleNuisances, roads, waste, civil registry, lost propertyFor anything the municipality handles🔗 guichet.public.lu

Administration des contributions directes — réclamationObjection to tax assessmentsWithin 3 months of the assessment📞 247-52000 🔗 impotsdirects.public.lu

CNS — Caisse nationale de santéReimbursements, doctor, complaintsFor coverage questions📞 27 57 1 🔗 cns.public.lu

❓ Frequently asked

The landlord will not give me a declaration

Most countries let you register with the rental contract alone; if the landlord obstructs, Administration communale 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 Administration communale or social services.

📎 Sources

Last checked: 2026-09-26

🔎 Common searches

Recognise your own search? The answer above covers all of these.

“register address Luxembourg how”
“address registration deadline Luxembourg”
“registering new address documents”
“moving abroad register Luxembourg”
“landlord declaration registration”

🧭 Is this still correct?

We check this information carefully, but phone numbers, websites and rules change — and sometimes we get something wrong. Spotted a mistake or a change? Let us know below.

🔗 Related questions

Your tools for Luxembourg

Before it goes wrongCan I?What is allowed, what is not, which permit you need — with the official source.Energy · LuxembourgElectricity & gasThe rules that protect you as an electricity and gas customer in Luxembourg, and who to contact. Every fact is checked on an official source.Recognise it firstIs dit veilig?Check a phone number, website or message against 47,000 scam dossiers.

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