CSSF Guidance 1 min read

Self-assessment questionnaire (revised Long Form Report)

RegCanary analysis of a CSSF publication

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Why it matters

RegCanary's analysis of what this means for regulated firms.

This update signals ongoing supervisory emphasis on the quality and completeness of prudential submissions. Compliance teams should treat the revised questionnaire as a critical tool to benchmark their reporting controls and identify gaps. While no immediate deadline is stated, institutions are expected to adopt the revised version promptly.

Actionable steps include obtaining the new questionnaire, comparing it with the prior version to identify changes, and updating internal self-assessment processes accordingly. Boards and senior management should ensure oversight of the revised reporting requirements, and staff training may be needed to reflect any new questions or focus areas. The revision may also indicate areas of heightened supervisory scrutiny, so firms should proactively review data accuracy, governance, and documentation.

Smaller institutions with limited resources should prioritize a gap analysis to avoid surprises. Overall, this is a moderate-impact update that reinforces the need for robust prudential reporting frameworks and offers an opportunity to enhance internal controls and supervisory confidence.

Who this affects

Sectors and firm types identified in the analysis.

  • General Regulation

Source

CSSF

Original publication, 3 November 2026

Read the original publication (opens in a new tab) cssf.lu

This is RegCanary's analysis, not the regulator's text. It summarises and interprets the publication above; it is not the CSSF's original wording, and it is not legal advice. Always rely on the original source.

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