FAQCSRDEU Taxonomy

Taxonomy Article 8 KPIs under CSRD and ESRS

Article 8 KPIs are EU Taxonomy disclosures that sit inside CSRD sustainability reporting. They should be governed with the same reporting controls as ESRS disclosures, but calculated and tagged from the Taxonomy disclosure rules.

Use this FAQ to separate the KPI calculation question, the ESRS sustainability-statement question, and the XBRL tagging question.

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Author
Sorena AI
Published
May 9, 2026
Updated
May 9, 2026
Questions
5

Structured answer sets in this page tree.

Primary sources
4

Cited legal and guidance references.

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Sorena AI
Published May 9, 2026
Updated May 9, 2026
Overview

EU Taxonomy Article 8 KPIs are not a new ESRS topic and should not be rewritten as generic climate narrative. For CSRD reporters, they are Taxonomy Regulation disclosures included in sustainability reporting, with their own KPI templates and an Article 8 XBRL taxonomy that EFRAG developed as digital support for the European Commission.

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5 of 5 questions
Question 1

How do Article 8 KPIs relate to CSRD reporting?

Article 8 of the EU Taxonomy Regulation requires undertakings in the scope of the relevant Accounting Directive sustainability-reporting provisions to disclose how and to what extent their activities are associated with environmentally sustainable economic activities. For CSRD reporters, those disclosures are part of sustainability reporting rather than a separate marketing claim.

For a non-financial undertaking, the core Article 8 KPI work is to calculate and present the Taxonomy-aligned share of turnover, capital expenditure, and operating expenditure using the Taxonomy disclosure regulation and templates. The CSRD connection is that the sustainability report must include those Article 8 disclosures and, where digital reporting applies, mark them up in the required electronic format.

  • Do not treat Article 8 KPIs as ESRS materiality conclusions; they are Taxonomy disclosure outputs with prescribed KPI logic.
  • Connect the KPI file to the annual sustainability reporting process, financial statement line items, and management report review.
  • Keep the calculation basis, denominator, numerator, environmental objective breakdown, and contextual disclosures together so reviewers can trace the published percentages.
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Map Article 8 KPIs before CSRD publication

Use the Article 8 KPI file to connect source finance data, Taxonomy activity assessments, ESRS reporting controls, and XBRL tags before the sustainability report is approved.

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Review Article 8 KPI evidence, ESRS reporting controls, and digital-reporting readiness with Sorena.

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Question 2

Are Article 8 KPIs part of ESRS?

They are related to ESRS reporting, but they are not ESRS datapoints calculated through ESRS double materiality. ESRS sets the sustainability-reporting baseline for CSRD reports, while Article 8 KPIs come from the EU Taxonomy disclosure framework and its delegated regulation.

The practical consequence is that the sustainability reporting owner should align presentation, controls, sign-off, and assurance readiness across ESRS and Article 8, but should not use ESRS materiality to omit or redesign required Article 8 KPI templates.

  • Use ESRS processes for report governance, consistency checks, and links to sustainability-statement disclosures.
  • Use the Article 8 disclosure regulation for the KPI mechanics, templates, and accompanying qualitative information.
  • Reconcile Article 8 KPI amounts to finance-owned source data before they enter the CSRD reporting package.
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Question 3

What does the Article 8 XBRL taxonomy add?

The Article 8 XBRL taxonomy is a digital representation of the Article 8 disclosure templates and related information requirements. EFRAG states that it transposes the Article 8 disclosure requirements into machine-readable format as technical support; it does not change the underlying EU Taxonomy KPI rules.

This matters for implementation because the report team needs two mappings: one from source finance and activity data into the Article 8 KPI templates, and one from the final disclosure tables and narrative context into the Article 8 XBRL taxonomy elements. The Article 8 taxonomy uses template structures, dimensions, text blocks, and KPI elements to support Inline XBRL tagging.

  • Map each reported Article 8 table or contextual disclosure to the relevant taxonomy table, text block, line item, and dimension.
  • Do not create entity-specific XBRL extensions for Article 8 disclosures where the Article 8 taxonomy is closed and provides the required elements.
  • Track corrected or revised figures separately from previously stated figures where the taxonomy structure supports reporting-scope distinctions.
Citations
Question 4

What evidence should the reporting team keep?

Keep evidence that proves the published KPI values, not just evidence that the report was reviewed. Article 8 KPIs are percentage disclosures built from financial amounts, Taxonomy activity assessments, and template rules, so the retained file should let a decision owner or assurance provider retrace the calculation.

A useful evidence pack separates non-financial undertaking KPI material from any financial-undertaking templates. Unless the reporting entity is a financial undertaking in scope of the relevant Article 8 annexes, avoid importing green asset ratio, asset manager, investment firm, or insurance-specific detail into the page or disclosure file.

  • Entity scope conclusion showing why Article 8 disclosures are included in the CSRD sustainability reporting package.
  • Activity eligibility and alignment assessment, including environmental objective, substantial contribution, DNSH, and minimum safeguards evidence where applicable.
  • Turnover, CapEx, and OpEx numerator and denominator workpapers tied to finance source systems and financial statement references.
  • Completed Article 8 templates and contextual disclosures, with the source regulation or template version identified.
  • XBRL mapping sheet showing the Article 8 taxonomy element, table, axis or member, unit, period, and reporting-scope treatment for each tagged fact.
  • Review log for finance, sustainability, legal, and digital-reporting sign-off before publication.
Citations
Question 5

What is the main implementation risk?

The main risk is mixing three different layers: the legal KPI obligation, the ESRS sustainability-statement process, and the XBRL tagging layer. When those layers are merged into one generic checklist, teams can publish a plausible-looking sustainability section without a traceable KPI calculation or a reliable digital-tagging map.

Keep the layers distinct: Article 8 determines the KPI content and templates, CSRD and ESRS determine the sustainability-reporting package and governance context, and the Article 8 XBRL taxonomy supports machine-readable tagging of the final disclosures.

  • Avoid unsupported claims that ESRS replaces the Article 8 KPI templates.
  • Avoid applying financial-undertaking KPI detail to non-financial undertakings unless the source rule and entity type support it.
  • Avoid treating the EFRAG Article 8 XBRL taxonomy as a new substantive rule; use it as the digital tagging map for the disclosure requirements.
Citations
Primary sources

References and citations

European sustainability reporting standards (ESRS)
xbrl.efrag.org
Referenced sections
  • Provides the ESRS reporting reference point for CSRD sustainability statements alongside, but distinct from, Article 8 KPI templates.
"European sustainability reporting standards"
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