Residence Formalities in Luxembourg: What EU and Non-EU Citizens Must Do

Two formalities, not one

The declaration of arrival at your commune registers where you live and is required of everyone, regardless of nationality, within a few days of moving in. Our guide to registering with the commune covers that step and its deadlines in full, and is the natural companion to this article. What follows here is the second, separate formality: the right to stay itself, which for EU citizens takes the form of a registration certificate, and for non-EU citizens involves authorisation before arrival and a residence permit after it.

EU, EEA and Swiss citizens

If you are a citizen of an EU or EEA member state, or Switzerland, and you plan to stay in Luxembourg for more than three months, the rule set by Guichet.lu is that you must obtain a registration certificate from the commune within three months of arrival, in addition to the initial declaration of arrival, which is due within eight days. The certificate is issued immediately at the commune office once you provide the right documents, and it is valid indefinitely, so there is no renewal to track afterwards.

The documents required depend on why you are staying. For a salaried worker, Guichet.lu specifies a valid national identity card or passport, plus a signed employment contract, or at minimum a dated and signed commitment to hire from the future employer. A secondary job of fewer than 10 hours a week is not sufficient grounds on its own for a salaried worker's registration; other categories exist for self-employed people, students, jobseekers and people with sufficient own resources, each with its own supporting documents, so check the specific category that applies to you on Guichet.lu before your appointment.

Family members of EU citizens

EU citizens' family members, whether EU nationals themselves or not, have their own registration procedures, generally following the same three-month deadline but with additional documents proving the family relationship (marriage or birth certificates, proof of dependency where relevant). Non-EU family members of an EU citizen typically receive a specific residence card rather than the plain registration certificate, so it is worth confirming with the commune or the Immigration Directorate which document applies to your specific family situation.

Non-EU (third-country) citizens

The process for non-EU citizens is longer and starts before you ever arrive in Luxembourg. According to Guichet.lu, most people staying more than three months for work must first obtain a temporary authorisation to stay, applied for from their country of origin through the General Department of Immigration. The application, submitted on plain paper, generally needs:

• a copy of a valid passport;
• a criminal record extract or sworn declaration;
• a CV and copies of diplomas;
• a signed employment contract;
• an ADEM certificate authorising the employer to hire a worker from outside the EU (for salaried employment).

The Ministry's stated response time is normally up to four months, so this step needs to start well before a planned move date, not once a flight is already booked. If your nationality requires a visa to enter Luxembourg, a type D long-stay visa is applied for at a Luxembourg diplomatic mission once the temporary authorisation has been granted.

After arrival

Once in Luxembourg, a non-EU citizen must complete the same declaration of arrival at the commune as everyone else, and Guichet.lu specifies this is due within three days of entry for third-country nationals, a shorter window than the eight days that applies more generally, so check the exact deadline for your situation with the commune directly. A medical examination, including a tuberculosis screening, typically follows, arranged through the Health and Social Welfare League or an authorised doctor. Finally, the residence permit itself is applied for, usually via MyGuichet.lu, within three months of entry, with a passport copy, the temporary authorisation, the declaration of arrival, proof of housing and a fee (commonly cited around €80, though this should be confirmed at the time of application since fees are periodically revised). Approval is followed by a biometric appointment and collection of the physical residence permit card.

Taken together, a non-EU move to Luxembourg for work can realistically take four months or more of preparation before arrival, plus up to three further months to finalise the residence permit afterwards, so early planning matters more here than almost anywhere else in the relocation process.

The EU Blue Card and other specific routes

Highly qualified non-EU workers may instead qualify for an EU Blue Card, a specific work and residence permit with its own salary and qualification thresholds, and separate routes exist for researchers, students, self-employed workers, posted employees and family reunification. Each has its own document list on Guichet.lu, and the category matters because it determines which authorisation to apply for from the outset, not something that can easily be changed once the process is under way.

Family members of non-EU citizens

Non-EU family members joining a non-EU resident generally go through family reunification, a separate procedure with its own income, housing and waiting-period conditions for the sponsoring family member, distinct from the family-member route available to relatives of EU citizens described above.

Getting the order right

A common mistake is treating the commune's declaration of arrival as the whole formality. It is not: for EU citizens it must be followed by the registration certificate within three months, and for non-EU citizens the temporary authorisation has to be sorted out before the flight, with the residence permit application only completed after the medical exam. Missing either the commune deadline or the immigration deadline can complicate later steps, including opening some bank accounts or accessing social security, so it is worth diarising both dates the moment you know your arrival date. Employers relocating staff to Luxembourg are often a useful source of practical help here too, since HR and mobility teams handling regular transfers usually know the current processing times at the Immigration Directorate better than any published guide can.

Our take

The nationality-based split in these rules catches out even experienced international movers, because many countries handle immigration and local registration as a single combined step. In Luxembourg they are two different administrations with two different clocks. If you are relocating for a role with us or considering a purchase or rental ahead of a move, contact us and we can point you to the right starting resources for your situation, or browse our current listings while your paperwork is under way.

This article gives general practical information and is not legal or tax advice. Procedures, amounts and deadlines change; check the current rules on guichet.lu or with the administration concerned.