How do you apply for a residence permit in Luxembourg in 2026?

EU, EEA and Swiss citizens who stay more than ninety days fill in a registration certificate (déclaration d'enregistrement) at the communal administration of their place of residence within three months of arrival. Guichet.lu says the form must include a copy of a valid identity card or passport plus status evidence for the relevant category: employment contract or job promise for workers, establishment authorisation for the self-employed, proof of studies plus means and health insurance for students, or sufficient resources and health cover for inactive people. On filing, the applicant receives a registration certificate stating name, address, registration date and certificate number, without a photo. After five years of uninterrupted legal residence, EU citizens can apply for a permanent residence document through Immigration.

Third-country nationals who want to work as salaried employees for more than three months must usually apply for a temporary authorisation to stay (autorisation de séjour temporaire) from abroad before entering Luxembourg. Guichet states that applications submitted from inside the country are generally inadmissible except in special cases such as people who already hold a Luxembourg residence permit. After a favourable decision, the temporary authorisation is typically valid for ninety days; visa-required nationals then request a type D visa. After entry, employees declare arrival at the commune, undergo the medical check Guichet lists for the route, and apply for a residence permit for third-country salaried workers to Immigration within three months. Family members of EU citizens follow a different commune residence-permit path; posted and transferred workers use their own Guichet sheets. Read the category that matches your letter, not a friend's finance-sector story.

Whatever route you use, address registration at the Bureau de la population comes early: many third-country arrivals must declare within three days. Keep the déclaration for the residence-permit file, bank onboarding and CCSS affiliation. Housing in Kirchberg or Belair does not change Immigration rules; it only changes which commune prints your arrival paper. Compare bases on Where to live in Luxembourg.

No public page can honestly promise how many weeks Immigration or a busy commune will take. Build calendar buffer for medical appointments, biometric collection and card pickup instead of booking flights around an assumed turnaround. MyGuichet helps later admin once you hold a matricule and LuxTrust; it does not replace the temporary authorisation step for first-time third-country workers.