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DORA Register of Information — DNB filing guide (2026)

Firms supervised by De Nederlandsche Bank face one of the earliest mainland-EU Register of Information deadlines — and it is not 31 March. This guide covers the DNB date, the required format, and what to get right before you submit.

Filing deadline — DNB (Netherlands)
20 March 2026
The earliest mainland-EU deadline — 11 days before the headline 31 March date. The most common DNB planning mistake is assuming month-end.

Format required

EBA XBRL-CSV is required. A register in any other format is rejected before its contents are checked.

Reference date

31 December 2025 — the register reflects your ICT third-party arrangements as at year-end.

What DNB checks

Common errors that get flagged

Who's in scope

DNB's deadline is 20 March, not 31 March — validate your register free.

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DORA filing guides by regulator

This guide is general information, not legal advice, and deadlines and formats can change — always confirm the current requirement directly with De Nederlandsche Bank (DNB) before you file.