The Commission des normes comptables is Luxembourg's accounting standards commission. It develops accounting doctrine for the Grand Duchy and advises on accounting legislation, including on the reform of Luxembourg accounting law. Its output is shaped by an unusual feature of the jurisdiction: Luxembourg company law provides three distinct accounting regimes — LUX GAAP at historical cost, LUX GAAP with fair value options, and IFRS as adopted by the EU — and the correct answer to a treatment question often differs between them.
What the CNC publishes
- Questions / Réponses (Q&A), its principal instrument, addressing specific accounting treatment questions
- Avis, formal opinions including on draft accounting legislation
- Doctrine on structural topics such as company migrations into Luxembourg
- Guidance on the Plan comptable normalisé, the standardised chart of accounts
- Material on the accounting effects of new legislation, such as Pillar Two minimum taxation
Why it matters for compliance teams
The three-regime structure is the practical difficulty, and the CNC's Q&As are the only authoritative source that works through it. A question answered for one regime does not answer it for the others, and the CNC is explicit about that — which makes its material essential rather than merely helpful for Luxembourg holding and fund structures.
Seqlense DOC indexes CNC Q&As and avis alongside CSSF requirements and the European accounting instruments, so a Luxembourg finance team can find the applicable answer for its own regime.