Summary of "know your client" requirements

Luxembourg
Private limited liability company (Société à responsabilité limitée or S.à r.l.)
Lawyers, banks and professionals of the financial sector, including domiciliation companies (corporate services providers), as well as notaries, are subject to KYC obligations.
The Luxembourg law setting-up a register of beneficial owners, implementing the EU Directive on the prevention of the use of the financial system for the purposes of money laundering or terrorist financing, lays down the following main obligations:
1. Obtaining and maintaining up-to-date information concerning beneficial owners of any Luxembourg entities at their registered office
2. Filing such information in a new, specially created, register in Luxembourg and
3. Providing information on beneficial owners to (i) national authorities (upon simple request) and (ii) certain professional organizations and professionals of the financial sector (upon grounded request).
The notion of "beneficial owner" is defined by the Luxembourg law of 12 November 2004 on the fight against money laundering and terrorist financing, as amended from time to time. In a nutshell, it refers to any individual ultimately who either holds, directly or indirectly, more than 25 percent of the company's capital or voting rights, or exercises, by any other means, a control over the management or executive bodies of the company or over the general meeting of its shareholders.
In case it can be confirmed that no natural person owns, holds or controls, directly or indirectly, at least 25 percent of the relevant entity and, therefore, no person meets the requirements to be identified as beneficial owner, the name (and details) of the senior managing official(s) (dirigeant(s) principal/principaux) should be communicated to, and filed with, the Luxembourg beneficial owners register.
While no definition of the term "senior managing official(s)" has been provided by the Luxembourg law, the Circular LBR 19/02 of 18 March 2019 issued by the Luxembourg business registers (which is not a source of binding law, but is limited to provide a certain guidance on the interpretation of law) provides that the term of "senior managing official" refers to the entire management body of a "company".
Criminal sanctions amounting to fines ranging from EUR 1 250 to EUR 1 250 000 may be applied to entities within the scope and on the beneficial owners in case of non-compliance.
Public limited liability company (Société anonyme or S.A.)
The same rules as the ones set out above apply to S.A.
Special limited partnership (Société en commandite spéciale or SCSp)
The same rules as the ones set out above apply to SCSp.