DORA Register of Information — CSSF filing guide (2027)
Luxembourg is a major fund domicile, so the CSSF supervises a large pool of investment firms and asset managers now in DORA scope. This guide covers the CSSF deadline, the format, and what your register has to pass.
Filing deadline — CSSF (Luxembourg)
31 March 2027
The headline ESA deadline for CSSF-supervised firms.
Format required
EBA XBRL-CSV is required.
Reference date
31 December 2026.
What CSSF checks
- LEI checksums against GLEIF on every provider
- Cross-table referential integrity
- Exit-strategy and audit-rights clauses on critical providers
Common errors that get flagged
- Invalid LEIs
- Unreconciled cross-references across the ESA tables
- Missing exit strategies on critical or important functions
Who's in scope
- Investment firms and fund managers
- Payment institutions
- Crypto-asset firms
Validate your CSSF DORA register — every finding cited to its article.
Check your register →No signup · nothing uploaded · runs in your browser
DORA filing guides by regulator
- DORA Register of Information — complete guide
- CySEC (Cyprus)
- DNB (Netherlands)
- MFSA (Malta)
- AFM (Netherlands)
- BaFin (Germany)
- CNB (Czech Republic)
- AMF (France)
This guide is general information, not legal advice, and deadlines and formats can change — always confirm the current requirement directly with the Commission de Surveillance du Secteur Financier (CSSF) before you file.