Sworn translation in Luxembourg
In the Grand Duchy, a translator counts as sworn only after being appointed by the Minister of Justice and taking the oath before a chamber of the Cour supérieure de justice. The resulting list is public and organised by language: here is how to read it, and when an apostille has to be added.
In 30 seconds
- Who is sworn: Translators appointed by the Minister of Justice in criminal and administrative matters, then sworn in before a chamber of the Cour supérieure de justice.
- Three administrative languages: French, German and Luxembourgish. An application that targets none of the three cannot be considered.
- Apostille or legalisation: An apostille for countries party to the Hague Convention; otherwise a legalisation, then counter-legalisation by the destination country's mission.
- Price and lead time: €60 to €100 excl. VAT per page, 1 to 3 business days. Quote within 60 minutes on business days.
Who may produce a sworn translation in Luxembourg?
The Minister of Justice may appoint sworn experts, translators and interpreters for criminal and administrative matters. This status comes from the amended Law of 7 July 1971. A successful applicant is entered on the list by ministerial order, issued several times a year, and is then invited to take the oath before a chamber of the Cour supérieure de justice. Thereafter they fall under the supervision of the Procureur général d'État.
The resulting list is published by the Ministry of Justice as one file per language. That is the first thing to check when a supplier announces a sworn translation for Luxembourg: look up the name of the translator who will sign in the list for the language concerned, not the name of the agency.
French, German, Luxembourgish
Luxembourg has three administrative languages: French, German and Luxembourgish. An application to join the list of sworn translators that targets none of these three cannot be considered. In practice, a foreign document intended for a Luxembourg authority is translated into one of the three — and it is the receiving authority that says which one.
Is an apostille or a legalisation needed?
That depends on the country where the document will be filed, not on Luxembourg. Both formalities are issued by the legalisation office of the Directorate of Consular Affairs, and both certify a signature or a seal — never the content of the document. The published fee is 20 euros per document, with a processing time of three working days.
Country party to the Hague Convention
An apostille is enough. It is affixed to the Luxembourg public document, and it may cover the signature or seal of a sworn translator practising in Luxembourg. Only documents issued on Luxembourg territory can be apostilled.
Other countries
A legalisation is issued instead, which then has to be counter-legalised by the diplomatic mission of the destination country accredited in Luxembourg. Allow for both steps in your schedule.
Between European Union member states
Regulation (EU) 2016/1191 exempts certain public documents from any legalisation or apostille formality: birth, marriage and death certificates, residence certificates, and court decisions on divorce or adoption, among others. The published list is indicative. Ask the receiving authority whether your document is covered before paying for an apostille that would serve no purpose.
What we translate for the Grand Duchy
Luxembourg brings together a financial centre, European head offices and a large cross-border workforce from France, Belgium and Germany. The documents that reach us follow that geography: they come from one country and have to take effect in another. We work remotely from Paris with a dedicated project manager; the document travels both ways digitally.
What we do not promise
A French sworn translation, produced by an expert translator attached to a French court of appeal, is not automatically accepted in Luxembourg: the Grand Duchy runs its own appointment system. If the receiving authority requires a translator on the Luxembourg list, we will say so at quotation stage rather than after delivery. Send us the document and the name of the receiving body: that is what settles the question.
Frequently asked questions
How can I check that a translator really is sworn in Luxembourg?
Which language should a document be translated into for a Luxembourg authority?
Is a French sworn translation valid in Luxembourg?
Does my translation have to be legalised or apostilled?
What does a sworn translation cost, and how long does it take?
Do you work for Luxembourg City, Esch-sur-Alzette and Kirchberg?
Official sources
- Ministry of Justice — list of sworn experts, translators and interpreters (one file per language)
- Guichet.lu — Judicial expert: appointment by the Minister of Justice, the oath, administrative languages
- Guichet.lu — Legal certification of public documents in Luxembourg: apostille, legalisation, Regulation (EU) 2016/1191, fee and lead time
- Légilux — Amended Law of 7 July 1971 establishing sworn experts, translators and interpreters
Facts verified on 11 October 2026. Procedures and administrative fees change: check the exact requirement with the receiving authority before ordering.
Request your quote
Reply within 60 minutes on business days. Send the document and the name of the receiving body: we will tell you whether a sworn translation, an apostille, or neither is needed.