Is CSRD sustainability reporting already required to be tagged in XBRL?
Not as a blanket final tagging obligation. Article 29d requires undertakings that publish a sustainability statement to prepare the management report in the electronic reporting format specified in Article 3 of the ESEF Delegated Regulation and to mark up the sustainability statement in accordance with rules to be adopted under that Regulation.
Directive (EU) 2026/470 states the current limit expressly: until those marking-up rules are adopted, undertakings are not required to mark up their sustainability reporting. The amended Article 29d retains the electronic-format requirement and does not state a corresponding XHTML postponement.
- Do not tell teams that final CSRD XBRL tagging is already fully operational unless the applicable delegated ESEF update and national filing rules support that conclusion.
- Do prepare the sustainability statement so disclosures can be mapped to ESRS data points, Article 8 disclosures, reporting period, entity boundary, units, and evidence owners.
- Separate current report-production requirements from future tagging readiness in board, audit, and project documentation.
Current binding source for the electronic-format requirement and the condition that sustainability-report marking-up awaits adoption of the relevant rules.
Supports the CSRD direction toward a sustainability reporting digital taxonomy and explains that final tagging rules sit with ESMA and the Commission.