Every Luxembourg company has, alongside its RCS registration, a second registry obligation that founders discover late and regulators check early: the RBE, the register of beneficial owners (Registre des bénéficiaires effectifs). It answers one question the corporate registry alone cannot: which human beings ultimately own or control this company?
The working knowledge, in five minutes.
Who counts as a beneficial owner
The standard test is ownership or control above 25%: any natural person holding, directly or indirectly, more than a quarter of the shares or voting rights belongs in the register. Indirectly matters: if your Luxembourg company is held by a holding company, the register wants the person behind the holding, not the holding itself. Chains of entities do not obscure the answer; they just make deriving it more work.
When no individual crosses the threshold (widely dispersed ownership), the rules fall back to registering the senior managers, so the register is never empty.
For a typical founder-owned company the exercise is trivial: you own most of it, you are the beneficial owner, your details go in. The exercise stops being trivial the moment structures appear, which is also when getting it wrong starts to matter.
What gets declared
For each beneficial owner: identity details and the nature and extent of the interest held. The declaration is filed with the register at incorporation, and the data must be kept accurate afterwards. Accuracy has a deadline dimension: changes in ownership trigger an obligation to update within a short statutory window, not "at the next annual review".
That is the operational point founders miss. The RBE is not a one-time incorporation formality; it is a standing register that must track reality. A share transfer, a new investor crossing the threshold, a buyout of a co-founder: each of these is an RBE event.
Who sees it
Access rules have evolved with European case law, balancing transparency against privacy: authorities and obliged entities (banks, notaries, professionals with AML duties) have access, and it is precisely your bank's compliance desk that will compare your RBE entry against the ownership story in your account file. Consistency between the two is not optional; mismatches generate the kind of questions that freeze onboarding.
Penalties are real
Non-compliance (missing, false or stale declarations) carries financial penalties, and enforcement exists; this is an AML instrument, not an administrative decoration. The practical standard to hold yourself to is simple: the RBE should be correct on any given day, and every cap-table change should come with the reflex question "does the register need updating?"
Keeping it correct
- At incorporation: declare every natural person above 25%, through however many layers.
- On every ownership change: recheck the threshold math and update within the statutory window.
- Keep the story consistent across RBE, bank files and shareholder registers; these documents are read together.
- In structures: map the full chain on paper first. If you cannot draw who owns what, the register cannot be right.
The RBE is one of those obligations that costs minutes when maintained and real money when neglected. It sits on the same compliance calendar as your filings, and in our incorporation work the initial declaration and the update triggers are part of the standard setup. Here is how we handle formation end to end, registers included.