Luxembourg corporate onboarding: documents, risks and rules
Luxembourg companies can occupy very different positions in a transaction: an operating business, a holding company and an investment vehicle need different commercial explanations. Their legal forms also affect what ownership information appears publicly.
By Matthew Lee
Luxembourg companies can occupy very different positions in a transaction: an operating business, a holding company and an investment vehicle need different commercial explanations. Their legal forms also affect what ownership information appears publicly. An SARL's registered partners can provide a starting layer, while an SA generally needs separate shareholder evidence. The onboarding file should explain both the ownership structure and the company's role in the proposed relationship.
Which rules apply
Luxembourg's law of 12 November 2004 on the fight against money laundering and terrorist financing, as amended, governs professionals within scope. Customer due diligence includes identifying customers and beneficial owners, understanding the relationship and ongoing monitoring. RCS company records, RESA publications and RBE beneficial ownership information have distinct purposes. Restricted RBE information must be obtained through a route for which the requester qualifies under the applicable framework.
The duties follow the onboarding firm's location, regulatory status and service. An overseas firm applies its own relevant regime to this customer. Ordinary commercial counterparties can also use these records for risk assessment without having the same duties as regulated firms.
For EU members, Regulation (EU) 2024/1624 generally applies from 10 July 2027. It should not be treated as replacing the current national AML framework for a 2026 onboarding decision.
Documents commonly requested
The starting file should reflect the legal form and the proposed relationship. These records answer complementary questions:
| Evidence | What the reviewer looks for |
|---|---|
| Current RCS extract | RCS identifier, legal form, status, management and representation |
| Current coordinated articles and relevant RESA publications | Governance, amendments and changes affecting the review |
| SARL partner information or appropriate SA share records | Immediate ownership for the particular legal form |
| Ownership chart and permitted RBE evidence | Ultimate control supported by documents for each corporate layer |
| Identity evidence and account mandate | Relevant individuals, signing combination and delegated powers |
| Accounts and transaction documents | Financial period, holding activity, funding and intended payments |
Registry records establish facts within their stated scope. Current ownership records, identity evidence and mandates may need to come from the client or another permitted source. Keeping those origins visible helps explain differences and the extent of independent corroboration.
The risks behind the paperwork
Public ownership depends on the legal form. An SARL partner entry can establish a direct holding without revealing the natural persons behind a corporate partner. For an SA, the company's current share records may be the appropriate starting point. Using the same public-data expectation for both forms can create a false gap or an unjustified ownership conclusion. The documents should explain holdings, voting rights and the date to which the position relates.
A manager may need a co-signatory. The representation provisions and the authority attached to particular managers can require signatures together. A mandate expiry or later removal can also affect an older extract. Where a corporate manager acts for the customer, evidence is needed for the persons entitled to act for that manager. This authority chain explains who can execute the instruction; it should be kept distinct from the chain identifying the beneficial owners.
A holding structure needs an economic explanation. A company with little visible operating activity may legitimately hold investments or receive dividends. That role should explain its assets, counterparties and expected money flows. If the proposed activity instead involves unrelated payments or funding inconsistent with the stated role, group agreements and source-of-funds evidence help resolve the difference. The existence of several corporate layers alone neither establishes wrongdoing nor supplies the missing explanation.
Current articles and relevant filings help explain why client-supplied documents use earlier names or governance arrangements. Where the customer offers regulated services, verify the required permission for the exact legal entity and activity; a group's regulated business does not establish the status of every holding or operating company.
How the Fill Easy email bot helps
An approved organisational sender can request available registry documents from agent@fill-easy.com, using prose, a table or an attached spreadsheet. Include the company identifier and required documents:
Please retrieve a current RCS extract, coordinated articles, relevant RESA filings and accounts for [company name], RCS [number]. Reference: [case reference]. Please include a summary report and confirm availability, price and expected turnaround.
The agent replies with item statuses, asks for clarification where needed, and returns retrieved PDFs in the same thread. Results carry their source, retrieval time and request ID. An optional summary references the documents. Availability, price and expected turnaround are confirmed at acceptance.
This helps the team collect and reconcile the registry evidence. Client-held records and individual identity evidence still follow the appropriate process, while the reviewer resolves remaining gaps and makes the onboarding decision. See the Mailbox workflow for the email process.