Regulatory Alerts2024-01-19
Added · Updated
CSSF Circular 24/850 as Amended: Annual Reporting and Statutory Auditor Requirements for Support PFS
The Commission de Surveillance du Secteur Financier (CSSF) issued Circular 24/850, as amended by Circular 25/903, to mandate annual descriptive reporting, self-assessment questionnaires, and statutory auditor engagements for support PFS entities. The framework requires these entities to formally appoint approved statutory auditors who must annually produce a management letter and a separate report detailing compliance and operational controls. The December 2025 update further specifies test rotation plans for the separate report, structuring audit coverage by activity, authorization, and risk classification to optimize supervisory efficiency.
Published on 19 January 2024
Updated on 23 December 2025
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CSSF circular
Practical rules concerning the descriptive report and the self-assessment questionnaire to be submitted on an annual basis by support PFS.
Engagement of the réviseurs d’entreprises agréés (approved statutory auditors) of support PFS and practical rules concerning the management letter and the separate report to be drawn up on an annual basis.
Link to the communiqué of 23 December 2025
PDF (227.92Kb)
PDF (205.14Kb)
Related documents
23 December 2025
Test rotation plans for the separate report of support PFS grouped by activities/authorisations and risk classification
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23 December 2025
Structure of the descriptive report
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23 December 2025
Summary of expected documents
related to Circular CSSF 24/850
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23 December 2025
Circular CSSF 25/903
Update of Circular CSSF 24/850 on the practical rules concerning the descriptive report and the self-assessment questionnaire to be submitted on an annual basis by support PFS, as well as the engagement of the réviseurs d’entreprises agréés (approved statutory auditors)…
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26 July 2019
Archived on 19 January 2024
Circular CSSF 19/727 repealed by Circular CSSF 24/850
New arrangements for the transmission of the documents required under Circular CSSF 12/544
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18 July 2012
Archived on 19 January 2024
Circular CSSF 12/544 repealed by Circular CSSF 24/850
Optimisation of the supervision exercised on the “support PFS” by a risk-based approach
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