Ordinary adult naturalisation

Five years with an uninterrupted final year

An adult applicant must have resided legally in Luxembourg for at least five years. The final year immediately before the naturalisation application must be uninterrupted; the rule is not simply five years elapsed since first obtaining a residence document.

Luxembourgish speaking at A2

The Luxembourgish nationality examination assesses speaking at CEFR A2. Ordinary naturalisation requires a language-test pass certificate, subject to the documented exemption process.

Luxembourgish listening at B1

Listening is assessed at CEFR B1. A speaking score of at least 50% passes; a lower speaking score can be compensated by listening if the rounded-up arithmetic average of the two scores reaches 50%. The guidance does not require independent 50% passes in both components.

Civic course or test; medical exemptions

Civic evidence is a certificate for attending the 24-hour Vivre ensemble course or passing its test without attendance. The history/European-integration course module is automatically waived for holders of a CAI civic-education attendance certificate or a citizens' pact certificate for the minimum six-hour Luxembourg overview; this waiver does not apply to the test taken without course attendance. A physical or mental condition preventing language or civic learning may support a ministerial exemption request with a specialist doctor's certificate.

Good repute and official decision

Good repute is required: false statements, concealed material information or fraud cause refusal, and specified criminal convictions can disqualify an applicant subject to the foreign-offence, timing and rehabilitation rules. Applications are made in person to the local civil registrar and examined by the Ministry of Justice; nationality takes effect through a favourable ministerial order.

Multiple nationality permitted

Luxembourg permits its nationality to coexist with other nationalities, so Luxembourg acquisition does not itself require renunciation of the original nationality. Retention also depends on the original country's nationality law.