New RCS registration requirements for natural persons in Luxembourg

Who is affected? 

All the natural persons registered with the RCS, in any capacity, including but not limited to:

• Shareholders, Partners;
• Directors, Managers;
• Authorised representatives;
• Auditors. 

What is the national identification number to be registered?

The Luxembourg national identification number (LNIN), also known as the 'matricule number' or 'CNS number', is a unique identifier for natural persons¹.

¹ The LNIN is assigned to any natural person having been registered in a Luxembourg public administration (resident, non-resident, Luxembourg national person, employee, independent, etc.) at some point in their life. The attributed LNIN is indefinitely valid.

Information to be provided to the RCS?

• For natural persons with an existing Luxembourg national identification number:

Provide the LNIN in the dedicated field on the RCS requisition form, along with the usual identification information (first names, last name, date and place of birth). No supporting documents are required.

• For natural persons without an existing Luxembourg national identification number:

Request the creation of a LNIN by providing the following information:

• First names;
• Last name;
• Date, place and country of birth;
• Gender;
• Nationality;
• Private home address (number, street, postal code, locality, country).

Supporting documents such as ID documents and proof of private address must also be attached to the request.

NB: For documents that are not drawn up in French, German, Luxembourgish or English, a translation (simple, not sworn) must be additionally provided.

Who may access the filed information?

Information on gender, nationality and private address of the natural person will not be registered in the RCS and will not be disclosed to the public but will be sent to the Centre des technologies de l’information de l’Etat for inclusion in the National Register of Natural Persons. They are therefore communicated to the RCS solely for the purposes of creating the LNIN.

The LNIN is not public and will only be sent to the individual, except if the person performing the request on behalf of the individual has been granted with a special proxy and selected the option to receive the LNIN as well.  

Process for registration, filing and/or modification of RCS files

While performing a registration, a filing and / or a modification of an existing file on the RCS:

A specific filing form will be available on the RCS portal for this purpose allowing the communication of the LNIN for those already with an existing one or allowing those without a LNIN to request its creation. It will be carried out outside of a filing procedure with the RCS.

NB: During the transition period (see below), updating LNINs as part of this new service will be free of charge to allow registered entities to quickly update missing information.