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Across 12 modules • Updated Jul 25, 2026
Author
Sorena AI
Published
May 9, 2026
Updated
Jul 25, 2026
CSRD digital tagging and XBRL readiness

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.
Citations
CSRD digital tagging and XBRL readiness

What should a CSRD team do now for ESRS XBRL readiness?

Build a disclosure-to-tag readiness file before the filing software work starts. For each ESRS disclosure requirement and material data point, keep the human-readable disclosure text, source system, calculation owner, review sign-off, and the candidate ESRS taxonomy concept or reason no direct concept is available.

Use EFRAG taxonomy materials as preparation material, not as a substitute for the final ESEF marking rules. EFRAG explains that ESMA defines the tagging rules and that those rules are adopted by the Commission through an ESEF delegated act.

Recheck the taxonomy mapping before implementation. The Commission adopted revised ESRS on 3 July 2026, but the revision remains subject to Parliament and Council scrutiny; a taxonomy built for the 2023 ESRS may therefore need corresponding updates.

  • Map ESRS 1 and ESRS 2 disclosures, topical ESRS disclosures, and entity-specific disclosures separately so narrative, semi-narrative, numeric, and dimensional data can be reviewed with different controls.
  • Maintain a data-point register with ESRS reference, disclosure text, unit, period type, dimension or disaggregation, source evidence, calculation method, and reviewer.
  • Flag taxonomy extensions or entity-specific disclosures early; they usually require stronger review because the tag choice is not a simple one-to-one match to a core element.
  • Keep Article 8 Taxonomy Regulation disclosures in scope for readiness because CSRD Article 29d refers to marking up sustainability reporting including Article 8 disclosures.
Citations
CSRD digital tagging and XBRL readiness

Which controls matter most for XHTML, ESEF, and Inline XBRL preparation?

Treat digital reporting as a controlled conversion from an approved sustainability statement into a report package. Controls should preserve both the XHTML presentation and machine-readable consistency across Inline XBRL facts, contexts, units, dimensions, labels, and extension taxonomy files.

The ESEF materials give a useful control vocabulary even before final CSRD sustainability tagging is fully adopted: XHTML report preparation, Inline XBRL embedding, extension taxonomy anchoring, unique tagged-fact identifiers, report-package completeness, no executable code, and self-contained resources.

  • Run a tie-out between the board-approved sustainability statement and every tagged fact, including hidden or transformed facts.
  • Validate contexts for reporting entity, period, scenario and segment use; sustainability metrics should not drift from the reporting boundary used in the human-readable statement.
  • Review unit, scale, sign, and transformation settings for numeric facts, especially emissions, energy, water, monetary, percentage, and intensity values.
  • Require technical validation of Inline XBRL and each extension taxonomy before filing, then preserve the validation report with the assurance and publication record.
  • Check that the XHTML or Inline XBRL report package is standalone and does not rely on external resources for content that should be inside the reporting package.
Citations
ESMA ESEF Reporting Manual

Supports XHTML, Inline XBRL, extension taxonomy, validation, and report-package controls that are relevant to digital-reporting readiness.

CSRD digital tagging and XBRL readiness

What evidence should auditors and reviewers expect for CSRD tagging readiness?

Keep evidence that proves the report can move from human-readable ESRS content to machine-readable facts without losing meaning. The evidence should be understandable to sustainability, finance, audit, and technical reviewers.

The record should distinguish three layers: the legal and standards basis, the disclosure data and review trail, and the technical report-package validation. That separation avoids a common failure where a technically valid package still contains weak disclosure mapping, or a well-reviewed statement cannot be reliably tagged.

  • Legal basis: CSRD Article 29d assessment, applicable national filing position, ESEF delegated-act status, and any authority guidance relied on.
  • Standards basis: ESRS disclosure inventory, materiality decisions, Article 8 disclosure inventory, taxonomy concept candidates, and extension rationale.
  • Data basis: source-system extracts, calculation workpapers, unit and scale checks, period and boundary checks, and reviewer sign-offs.
  • Technical basis: XHTML or Inline XBRL package, taxonomy package, validation logs, warnings disposition, anchoring review, and final filed version hash or archive reference.
  • Limit record: unresolved items that depend on final ESEF sustainability tagging rules, software certification, national filing portal requirements, or assurance-scope decisions.
Citations
CSRD Omnibus status after Directive (EU) 2026/470

What is the current CSRD stop-the-clock status?

Directive (EU) 2025/794 is the Stop-the-Clock Directive. It postponed by two years the application dates for undertakings that were originally due to report first for financial years 2025 or 2026. Directive (EU) 2024/1306 is a different act concerning deadlines for certain sustainability reporting standards.

Directive (EU) 2026/470 is the later enacted Omnibus amendment. For financial years beginning in 2027, its main Articles 19a and 29a scope applies when an undertaking or parent group exceeds EUR 450 million net turnover and has more than 1,000 employees on average during the financial year.

  • Use Directive (EU) 2025/794 to explain the two-year delay of the original later waves.
  • Use Directive (EU) 2026/470 for the amended scope from financial years beginning in 2027.
  • Keep national transposition, exemptions, reporting year, and ESRS delegated-act status next to every entity conclusion.
Citations
CSRD Omnibus status after Directive (EU) 2026/470

What did the stop-the-clock directive change, and what did it not change?

Directive (EU) 2025/794 changed timing for the affected later reporting waves. It did not itself enact the wider scope reduction; that was later enacted through Directive (EU) 2026/470.

Directive (EU) 2026/470 also permits Member States to exempt an undertaking or issuer that does not exceed either EUR 450 million net turnover or an average of 1,000 employees, on a consolidated basis where applicable, from specified amended requirements for financial years beginning between 1 January 2025 and 31 December 2026. This is a national option, not an automatic EU-wide exemption.

Reporting teams therefore need separate fields for original wave, Stop-the-Clock effect, any national 2025-2026 transition derogation, current 2027 scope, national transposition, and standards status. Combining them into a single 'CSRD delayed' label can produce the wrong entity conclusion.

  • Enacted timing change: Directive (EU) 2025/794 for companies originally first due for financial years 2025 or 2026.
  • Enacted scope change: Directive (EU) 2026/470, applying the amended main scope from financial years beginning in 2027.
  • Optional national transition: check whether the relevant Member State used the Directive (EU) 2026/470 derogation for financial years beginning in 2025 or 2026.
  • Still entity-specific: national transposition, group perimeter, turnover, employees, exemptions, and issuer or sector rules.
Citations
CSRD Omnibus status after Directive (EU) 2026/470

How should a company update its CSRD plan now?

Start with the entity's original CSRD wave and reporting year. If it was previously first required to report for financial years 2025 or 2026, record the Directive (EU) 2025/794 postponement as history.

Then apply Directive (EU) 2026/470 for financial years beginning in 2027. Record whether the undertaking or parent group exceeds both amended thresholds, which exemption is relied on, and which national measure implements the directive. Member States must transpose its CSRD amendments by 19 March 2027. Keep the revised European Sustainability Reporting Standards in a pending-applicability field until the scrutiny period, Official Journal publication, entry into force, and application provisions are confirmed.

  • Identify whether the entity is a wave two or wave three company in the existing CSRD plan.
  • Record Directive (EU) 2025/794 as the source for the Stop-the-Clock timing change.
  • Record Directive (EU) 2026/470 as the source for the current amended scope and related value-chain, assurance, and third-country changes.
  • Continue maintaining materiality, ESRS data, assurance-readiness, and governance evidence where the entity remains in scope or status is uncertain.
Citations
CSRD Omnibus status after Directive (EU) 2026/470

What evidence should support a stop-the-clock status note?

Keep the evidence narrow and source-specific. The record should show the entity's original CSRD wave, whether the Stop-the-Clock Directive applied, the Directive (EU) 2026/470 threshold result, and which implementation items remain pending.

Avoid generic statements such as "CSRD has been delayed" or "CSRD no longer applies" without naming the reporting year, legal source, thresholds, exemption, and national-law position.

  • Entity and group boundary used for the CSRD wave assessment.
  • Original first reporting year classification from the company's pre-stop-the-clock CSRD plan.
  • Source citations for Directives (EU) 2025/794 and 2026/470 and the applicable national measure.
  • Separate tracker entries for the revised ESRS delegated act, the voluntary standard, assurance standards, and other unfinished implementation measures.
  • Review owner and trigger for updating the note when a later enacted EU source changes the status.
Citations
CSRD reporting waves FAQ: who reports first and what changed

What were the original CSRD reporting waves?

Directive (EU) 2022/2464 set phased application dates by financial year. The first wave covered large public-interest entities and parent undertakings of large groups that exceeded the 500-employee condition. The second wave covered other large undertakings and parent undertakings of large groups. The third wave covered listed SMEs that are not micro-undertakings, plus listed small and non-complex institutions and captive insurance or reinsurance undertakings where the CSRD conditions are met.

The same directive also applied the third-country reporting provisions for financial years starting on or after 1 January 2028. That is a separate Article 40a route, not the same analysis as a normal EU large undertaking or listed SME wave.

  • Financial years starting on or after 1 January 2024: large public-interest entities and large-group parents above the 500-employee condition.
  • Financial years starting on or after 1 January 2025: other large undertakings and other parent undertakings of large groups.
  • Financial years starting on or after 1 January 2026: listed SMEs that are not micro-undertakings, plus qualifying listed small and non-complex institutions and captive insurance or reinsurance undertakings.
  • Financial years starting on or after 1 January 2028: the CSRD third-country reporting route introduced through Article 40a.
Citations
CSRD reporting waves FAQ: who reports first and what changed

Did the stop-the-clock measure erase the original waves?

The original wave rules remain useful history. Directive (EU) 2025/794 postponed the original wave-two and wave-three dates by two years. Directive (EU) 2026/470 then replaced the main scope from financial years beginning in 2027 with the EUR 450 million net-turnover and 1,000-employee tests. A current conclusion needs both steps and the applicable national law.

For financial years beginning in 2025 or 2026, Directive (EU) 2026/470 permits a Member State to exempt an undertaking or issuer that does not exceed either EUR 450 million net turnover or an average of 1,000 employees, on a consolidated basis where applicable, from specified amended requirements. The derogation applies only where the relevant Member State adopts it.

For a live entity assessment, keep the original CSRD wave, record whether the stop-the-clock measure and any national transition derogation affected it, test the entity against the amended scope, and verify the Member State implementation or issuer rules before changing a reporting plan. Directive (EU) 2026/470 requires Member States to transpose its CSRD amendments by 19 March 2027.

  • Wave one companies are not described in the Commission source as the stop-the-clock target; the same page separately notes a quick-fix delegated act giving additional ESRS flexibility to wave one companies for financial years 2025 and 2026.
  • Wave two and wave three companies need a current-law check because the EU-level caveat changes entry into application, but local implementation can still control the practical filing analysis.
  • For a 2025 or 2026 financial year, retain the national provision that implements any transition derogation; the EU directive only authorises the Member State option.
  • A reporting-wave memo should record the original CSRD wave, any stop-the-clock reliance, the Member State or issuer regime checked, and the source date used for the conclusion.
Citations
CSRD reporting waves FAQ: who reports first and what changed

Does the former listed SME opt-out still determine current CSRD scope?

The listed SME opt-out belongs to the original CSRD transition rules. Under the earlier Article 19a(7), listed SMEs other than micro-undertakings could decline to report for financial years starting before 1 January 2028 if their management report briefly explained why. The Commission's 2024 FAQ describes that rule.

Directive (EU) 2026/470 deletes the listed-SME application category and Article 19a paragraphs 6 and 7. From financial years beginning in 2027, listed status alone does not bring an SME into the amended CSRD reporting scope. The main test is whether the undertaking, issuer, or group exceeds both EUR 450 million in net turnover and an average of 1,000 employees. Use the old opt-out only when analysing a financial year and national transition measure for which it still applied.

  • For financial years before 2027, confirm which national version of the listed SME transition rule applied.
  • For financial years beginning in 2027 or later, test both amended thresholds instead of relying on the former listed SME category.
  • Keep any historical opt-out explanation with the management report for the year in which it was used.
  • Check voluntary-reporting and value-chain requests separately; falling outside mandatory CSRD scope does not prevent voluntary reporting.
Citations
CSRD reporting waves FAQ: who reports first and what changed

How do CSRD reporting waves work for third-country undertakings?

There are two different third-country questions. First, a third-country issuer with transferable securities admitted to trading on an EU regulated market can fall under the issuer route. For financial years beginning in 2027, Directive (EU) 2026/470 applies that route only when the issuer undertaking, or its group on a consolidated basis, exceeds both EUR 450 million net turnover and an average of 1,000 employees. For earlier financial years, check the applicable national implementation and transition rules. Under the issuer route, sustainability information belongs in the management report within the annual financial report.

Second, Article 40a covers certain third-country undertakings with a qualifying EU subsidiary or branch footprint. For financial years beginning in 2028, Directive (EU) 2026/470 requires the third-country undertaking to have generated more than EUR 450 million in EU net turnover in each of the last two consecutive financial years. The qualifying EU subsidiary must exceed EUR 200 million in net turnover in the preceding financial year. The same EUR 200 million threshold applies to a branch where the third-country undertaking has no qualifying EU subsidiary.

  • Check whether the third-country company is an EU-regulated-market issuer before using the Article 40a branch or subsidiary route.
  • For Article 40a, identify the EU subsidiary or branch that would publish and make the report accessible.
  • Check the EU turnover and branch turnover facts against audited or management-reporting records.
  • If a third-country undertaking withholds the required assurance opinion for an Article 40a report, the EU subsidiary or branch must issue a statement indicating that fact.
Citations
CSRD reporting waves FAQ: who reports first and what changed

Why should teams confirm local law before relying on a CSRD wave answer?

CSRD is a directive. Directive (EU) 2022/2464 required Member States to bring national laws, regulations, and administrative provisions into force and communicate those measures to the Commission. Directive (EU) 2026/470 sets a 19 March 2027 deadline for transposing its CSRD amendments. An EU-level wave analysis is necessary but may not answer filing, assurance-provider, register, publication, or sanction questions under national law.

Local-law confirmation is especially important where an entity is near a size threshold, uses the listed SME opt-out, relies on a stop-the-clock delay, has securities admitted to trading on an EU regulated market, or publishes an Article 40a third-country report through an EU subsidiary or branch.

  • Record the Member State law or issuer home Member State checked.
  • Confirm whether national law changes the practical publication channel, assurance-provider rules, or enforcement exposure.
  • Keep the CSRD source, the national-law source, the entity classification evidence, and the reporting-year conclusion together.
Citations
CSRD topical ESRS scoping: what must be reported?

Does every CSRD reporter have to report every topical ESRS?

No. Under the 2023 ESRS, ESRS 2 General Disclosures applies irrespective of the materiality assessment, while the other standards, disclosure requirements, and datapoints are subject to materiality. The undertaking reports material information and may omit non-material information subject to the specific IRO-2 rules.

Materiality does not make topical requirements voluntary. If a topical matter, disclosure requirement, or datapoint is material under double materiality, the undertaking must disclose the material information. The materiality assessment is also within the sustainability-statement assurance engagement.

  • Start with ESRS 2 because its cross-cutting disclosures apply irrespective of which sustainability matter is considered.
  • Assess topical ESRS by impacts, risks, and opportunities, including both impact materiality and financial materiality.
  • When a topical matter is material, use the related ESRS disclosure requirements to identify the information to report.
  • If a material impact, risk, or opportunity is not covered or is insufficiently covered by ESRS, add an entity-specific disclosure rather than leaving the matter unexplained.
Citations
CSRD topical ESRS scoping: what must be reported?

What changes under the revised ESRS adopted in July 2026?

The revised standards are not yet in force. Once applicable, they replace the 2023 ESRS 1 and ESRS 2 scoping mechanics. They keep double materiality and require the undertaking to apply ESRS 2, then report the material information for topics or sub-topics connected to material impacts, risks, or opportunities.

The revised ESRS expressly use a two-step sequence: identify topics related to material impacts, risks, or opportunities, then determine the information to report for those topics. They allow a top-down approach from the business model, strategy, sectors, geographies, and value chain where materiality or non-materiality is evident; a more specific assessment is required where it is not evident.

  • Use the 2023 scoping rules until the revised delegated act enters into force.
  • For financial years beginning in 2026, use the revised standards only if the act is in force and the undertaking elects the option provided by the adopted act.
  • For financial years beginning on or after 1 January 2027, plan for the revised standards, subject to completion of scrutiny and entry into force.
  • State which version is used for a 2026 report when the final transitional provisions require that disclosure.
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