Funds

CSSF Concludes Thematic AML Review of Fund Distribution, Faults Three Quarters of Sample

The supervisor's findings, published Wednesday, pressure ManCos to overhaul source-of-wealth controls before the 2026 SREP cycle.


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The Kirchberg skyline at dusk with the Philharmonie in the foreground.
Most of Luxembourg's largest ManCos are clustered around the Kirchberg financial district.Étude archive

The Commission de Surveillance du Secteur Financier (CSSF) on Wednesday concluded an 18-month thematic review of anti-money-laundering controls across Luxembourg's fund-distribution chain, identifying material weaknesses at 73% of the 84 management companies in the supervisory sample.

The headline finding: while screening of investors at onboarding has improved markedly since the 2021 review, ongoing-monitoring and source-of-wealth verification remain "patchy and procedurally underweight," in the regulator's phrasing. Sixty-one out of 84 ManCos received supervisory letters, and the CSSF said it is opening enforcement proceedings against an unnamed subset.

Where the gaps are

Three structural weaknesses recur: reliance on intermediaries' AML files without contractual access rights; inconsistent treatment of nominee structures originating in jurisdictions on the EU's grey list; and weak secondary checks on cumulative subscription thresholds.

What ManCos should expect next

The 2026 SREP cycle will give CSSF inspectors access to the same documentation under a tighter scoring rubric. Industry counsel at Arendt & Medernach told Étude they expect at least a dozen ManCos to face dissuasive financial sanctions in 2026 — up from three in 2024.

What is the CSSF?
The Commission de Surveillance du Secteur Financier is Luxembourg's principal financial regulator, supervising banks, investment funds, and management companies operating in the Grand Duchy.
How many ManCos failed the 2025 CSSF AML review?
Sixty-one out of the 84 management companies in the supervisory sample received supervisory letters identifying material AML control weaknesses.

See more on: CSSF, AML, Investment funds