Residence in Luxembourg of workers posted by businesses established in the EU

A business established in the European Union (EU) or a country treated as such (Iceland, Liechtenstein, Norway or Switzerland) may freely post its workers to Luxembourg.

For a stay of less than 3 months in Luxembourg, posted EU national workers do not need to carry out any formalities.

For a stay of more than 3 months, EU nationals must:

  • make a declaration of arrival in their new commune of residence, and;
  • fill in a registration certificate at said communal office.

Who is concerned

Any worker posted to Luxembourg by a business established in the EU or a country treated as such (Iceland, Liechtenstein, Norway or Switzerland) can, whatever his/her nationality, work and/or reside in Luxembourg during the posting provided he/she is duly authorised to work in the country where the posting business is established.

Workers posted by service providers established outside the EU are not concerned: their employer must apply for a collective authorisation for posted work in order to receive the temporary authorisation to stay for the workers concerned before they can come to Luxembourg.


A company established in another EU Member State or a country treated as such may freely post its workers, whatever their nationality, to Luxembourg, provided the posted workers have, for the duration of their posting, the right to work and stay in the country where the posting business is established.

The temporary posting must take place under a contract concluded between the posting business and the recipient of the service established in Luxembourg.

A posted worker is a worker who:

  • usually works abroad;
  • carries out work on the territory of the Grand Duchy of Luxembourg;
  • carries out a provision of services for a fixed period of time which is detailed in a services contract concluded specifically for said services.

The posted worker is sent to Luxembourg for a limited period of time in a subordinate relationship with the posting business.

The period of time is determined:

  • depending on the duration, the frequency, periodicity and continuity of the provision of services; and
  • in relation to the nature of the activity which is the subject of the posting.

Preliminary steps

Businesses established in the EU (or country treated as such) must first request an A1 certificate (E101 form) from the Social Security in the country of origin for each posted worker.

The posted EU national does not need to carry out any preliminary steps.

How to proceed

Stay of less than 90 days

For a stay of less than 3 months, EU citizens do not have to carry out any formalities.

They simply have to hold a valid national identity card or passport.

They can also, if they so wish, make a declaration of arrival at their commune of residence and request a registration certificate.

Staying for more than 90 days

For a stay of more than 90 days, EU citizens must make a declaration of arrival at the administration of the commune where they intend to establish residence, within 8 days of their arrival in Luxembourg, and present:

  • a valid national identity card or passport;
  • an A1 certificate (E101) provided by their employer prior to the secondment;
  • where applicable, the declaration of departure issued by the authority of the former commune of residence.

EU citizens must also complete a registration form at the commune within 90 days of their arrival in Luxembourg.

The registration form must be submitted together with the following documents:

  • a valid national identity card or passport;
  • a copy of the employment contract;
  • a copy of the A1 certificate (E101) provided by the employer.

Loss, theft or damage to the permit

In the event that the registration certificate is lost, stolen or damaged a specific procedure must be followed.

Forms / Online services

Déclaration d'enregistrement d'un citoyen de l'Union ou d'un pays assimilé

Les informations qui vous concernent recueillies sur ce formulaire font l’objet d’un traitement par l’administration concernée afin de mener à bien votre demande.

Ces informations sont conservées pour la durée nécessaire par l’administration à la réalisation de la finalité du traitement

Les destinataires de vos données sont les administrations compétentes dans le cadre du traitement de votre demande. Veuillez-vous adresser à l’administration concernée par votre demande pour connaître les destinataires des données figurant sur ce formulaire. Conformément au règlement (UE) 2016/679 relatif à la protection des personnes physiques à l'égard du traitement des données à caractère personnel et à la libre circulation de ces données, vous bénéficiez d’un droit d’accès, de rectification et le cas échéant d’effacement des informations vous concernant. Vous disposez également du droit de retirer votre consentement à tout moment.

En outre et excepté le cas où le traitement de vos données présente un caractère obligatoire, vous pouvez, pour des motifs légitimes, vous y opposer.

Si vous souhaitez exercer ces droits et/ou obtenir communication de vos informations, veuillez-vous adresser à l’administration concernée suivant les coordonnées indiquées dans le formulaire. Vous avez également la possibilité d’introduire une réclamation auprès de la Commission nationale pour la protection des données ayant son siège à 15, boulevard du Jazz L-4370 Belvaux.

En poursuivant votre démarche, vous acceptez que vos données personnelles soient traitées dans le cadre de votre demande.

Who to contact

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