Recent Regulatory Changes for Luxembourg Private Limited Companies (Sàrl): 2024–2025

Overview

Luxembourg has enacted several significant legislative changes affecting the société à responsabilité limitée (Sàrl) and société anonyme (SA) during 2024–2025, addressing company law modernisation, anti-money laundering compliance, the Mobility Directive transposition, and beneficial ownership register obligations.

1. Law of 23 January 2025 — RCS and RBO Reforms

The Law of 23 January 2025 amended provisions governing the Registre de Commerce et des Sociétés (RCS) and the Registre des Bénéficiaires Effectifs (RBO). Key changes include mandatory electronic filing for all Sàrl and SA entities through the LBR e-filing portal, and empowering the LBR to cross-check beneficial ownership information against tax authority and CRF data. Discrepancies trigger automatic notifications requiring rectification within 30 days. Failure to register or update beneficial ownership information carries administrative penalties up to EUR 1,250,000 for legal persons.

2. Law of 17 February 2025 — Mobility Directive Transposition

The Law of 17 February 2025 transposed EU Directive 2019/2121 into Luxembourg law, affecting cross-border conversions, mergers, and divisions involving Sàrl and SA entities. A Sàrl or SA may now convert into a company form governed by another EU member state's law without first dissolving. The procedure requires a conversion report, an independent expert opinion, and a creditor and employee protection period of at least two months. Companies with more than 500 employees are subject to employee participation requirements. The competent authority may refuse the pre-conversion certificate if the operation constitutes an artificial arrangement.

3. Law of 19 December 2024 — AML Package

The Law of 19 December 2024 implemented the EU's fourth AML package. The beneficial owner threshold remains at 25% ownership or control, but the definition of control has been expanded to include contractual arrangements and rights of appointment over a majority of board directors. Management companies and domiciliation agents providing registered office services must apply enhanced due diligence and report all discrepancies between client-declared information and RBO data.

4. Draft Bill 8669 — Deferred Capital Contributions

Draft Bill 8669, under parliamentary examination, proposes a deferred capital contribution mechanism for Sàrl entities. Up to 50% of subscribed capital may be contributed within 24 months of incorporation, subject to unanimous shareholder approval and notarial certification.

Summary of Key Legislative Instruments