Company registers (LBR)
One operator sits behind every Luxembourg company's public record: Luxembourg Business Registers. Companies are registered with the RCS, beneficial owners are declared to the RBE, and legal publications appear in RESA — all through the same portal, each on its own clock.
Last verified July 2026
Official sources only, linked per figure
The three registers
What LBR operates
Luxembourg Business Registers (LBR) runs the official portal for company formalities with the RCS (trade and companies register), the RBE (register of beneficial owners) and RESA (the electronic gazette for company publications)
lbr.lu — portal front page: registration, filing, consultation and ordering for RCS, RBE and RESA · verified 14 August 2026
RCS — registration filing
1 month after signing
compliance doc §2 / LBR FAQ · verified July 2026
RBE — beneficial-owner filing
after incorporation
1 month
compliance doc §5 / guichet.public.lu RBE filing · verified July 2026
RBE — ownership threshold
% shareholding that makes someone a registrable beneficial owner
25%
loi du 13 février 2018 (AML), art. 1(7) — 25% of shares plus one, or a capital holding above 25% · verified 5 August 2026
In plain terms: the RCS is your company's public identity card, the RBE records the humans who ultimately own it, and RESA is where its legal notices are published. A new company touches all three within its first month.
Consulting the registers & fees
RBE consultation — reason now required
since July 2026, consulting an entity's RBE file or ordering an RBE extract requires stating a reason for each consultation, recorded under article 13(2bis) of the amended law of 13 January 2019
lbr.lu — news of 24 July 2026 on RBE consultation traceability · verified 14 August 2026
RCS — personal data no longer displayed
the RCS no longer displays the date and place of birth of registered natural persons such as managers and partners — and for natural-person traders also nationality, private address and marital details — applied to new filings first
lbr.lu — news of 5 August 2026 on data minimisation in the RCS · verified 14 August 2026
RCS filing fee, by legal form
€10–106
guichet.public.lu - business registration and filings with the RCS (fee depends on legal form) · verified 16 July 2026
Name-availability certificate
€4.75–10
guichet.public.lu - availability of the company name (LBR certificate admin fee) · verified 16 July 2026
What founders actually use the portal for
Before incorporation, the consultation search answers the two questions every founder has: is my company name free, and who is behind the company I am about to deal with. After incorporation, the same portal is where the RCS file is kept current — a change of manager, registered office or shareholding is a filing, not an email.
Banks and counterparties will ask for an RCS extract and, increasingly, an RBE extract. Both are ordered from the portal directly; since July 2026 the RBE side records why each consultation is made.
Go deeper
Common questions
What is the LBR in Luxembourg?
Luxembourg Business Registers is the operator of the country's public business registers: the RCS (trade and companies register), the RBE (register of beneficial owners) and RESA (the electronic gazette for company publications). Its portal at lbr.lu handles registration, filings, consultation and extracts.
What is the difference between the RCS and the RBE?
The RCS is the public register of companies themselves — name, form, registered office, managers. The RBE records the natural persons who ultimately own or control each entity, at a threshold of more than 25% of shares or capital.
How do I look up a company in the Luxembourg company register?
Through the consultation section of lbr.lu, searching by company name or RCS number. Extracts and certificates are ordered from the same portal.
Related in the database
Reference material from official Luxembourg sources, linked per figure. This is document automation support, not legal or tax advice; confirm figures against the linked source for your specific case.