---
title: "EU Taxonomy auditor evidence: what to keep for alignment review"
canonical_url: "https://www.sorena.io/artifacts/eu/taxonomy-regulation/faq/auditor-evidence"
source_url: "https://www.sorena.io/artifacts/eu/taxonomy-regulation/faq/auditor-evidence"
author: "Sorena AI"
description: "Practical FAQ on EU Taxonomy auditor evidence: what evidence supports eligibility, alignment, DNSH, minimum safeguards, and Article 8 KPI disclosures."
published_at: "2026-05-09"
updated_at: "2026-05-09"
keywords:
  - "EU Taxonomy auditor evidence"
  - "Taxonomy alignment evidence"
  - "Article 8 disclosure evidence"
  - "DNSH evidence"
  - "minimum safeguards evidence"
  - "technical screening criteria verification"
  - "EU Taxonomy"
  - "auditor evidence"
  - "Taxonomy alignment"
  - "Article 8 disclosure"
  - "technical screening criteria"
  - "DNSH"
  - "minimum safeguards"
---
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# EU Taxonomy auditor evidence: what to keep for alignment review

Practical FAQ on EU Taxonomy auditor evidence: what evidence supports eligibility, alignment, DNSH, minimum safeguards, and Article 8 KPI disclosures.

*FAQ* *Taxonomy* *EU*

## EU Taxonomy Regulation What auditor evidence should teams keep for Taxonomy alignment

A practical answer for reporting, sustainability, finance, legal, and internal-control teams preparing EU Taxonomy decisions for review.

Use this FAQ to separate mandatory activity-specific verification from the broader evidence file needed to support eligibility, alignment, DNSH, minimum safeguards, and KPI disclosures.

EU Taxonomy auditor evidence should not be a generic folder of policies. A useful evidence file shows how each reported activity was scoped, which technical screening criteria were applied, how DNSH and minimum safeguards were checked, how Article 8 KPIs were calculated, and where external verification is required by the relevant criteria.

## What should teams do about auditor evidence under the EU Taxonomy Regulation?

Build the evidence file around the four alignment conditions in Article 3 of Regulation (EU) 2020/852: substantial contribution to at least one environmental objective, no significant harm to the other objectives, compliance with minimum safeguards, and compliance with the Commission's technical screening criteria.

Do not describe every review as a mandatory audit. The Commission's Climate Delegated Act notice says some technical screening criteria contain specific verification requirements for certain activities; where the criteria require verification, the external verifier's report is evidence of compliance. For other activities, the file still needs enough documentation to let a reviewer trace the eligibility, alignment, DNSH, safeguards, and KPI decisions.

- Map the reported activity to the delegated-act activity description and environmental objective before collecting evidence.
- Keep the technical screening criteria applied, the supporting data, and the conclusion for substantial contribution and DNSH in one review record.
- Attach minimum-safeguards evidence that shows procedures aligned with Article 18 references to OECD Guidelines, UN Guiding Principles, ILO fundamental principles and rights, and the International Bill of Human Rights.
- Add verifier reports only where the applicable technical screening criteria or activity-specific guidance requires external verification.

Sources for this answer:

- [Regulation (EU) 2020/852 (Taxonomy Regulation)](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex:32020R0852&ref=sorena.io) - Defines the Article 3 conditions for an economic activity to qualify as environmentally sustainable and Article 18 minimum safeguards.
- [Commission Notice C/2023/267 on Climate Delegated Act technical screening criteria](https://eur-lex.europa.eu/eli/C/2023/267/oj/eng?ref=sorena.io) - Clarifies that checking compliance with technical screening criteria requires collecting and assessing relevant information, and that verifier reports evidence compliance where verification is required.

## Which evidence belongs in a review-ready Taxonomy file?

A review-ready file should let a person who was not involved in the original assessment reproduce the conclusion. Start with the activity boundary and the applicable delegated-act criteria, then connect each data point to the published disclosure line or KPI value it supports.

For Article 8 reporting, non-financial undertakings disclose turnover, CapEx, and OpEx proportions associated with environmentally sustainable economic activities. The Disclosures Delegated Act also requires contextual information for financial undertakings, including scope, data sources, and limitations, so evidence should preserve the source and limitation story behind each KPI.

- Activity scoping: legal entity, business line, activity description, objective, and applicable delegated act section.
- Eligibility and alignment matrix: substantial-contribution criteria, DNSH criteria, minimum-safeguards check, and conclusion.
- KPI support: turnover, CapEx, OpEx, GAR, GIR, or other applicable Article 8 calculation support, including allocation logic.
- Data provenance: source systems, external data providers, study references, estimates used, and known data limitations.
- Disclosure bridge: where each evidence item appears in the management report, sustainability statement, Taxonomy table, or narrative explanation.

Sources for this answer:

- [Commission Delegated Regulation (EU) 2021/2178 (Disclosures Delegated Act)](https://eur-lex.europa.eu/eli/reg_del/2021/2178/oj/eng?ref=sorena.io) - Specifies Article 8 disclosure content and methodology, including turnover, CapEx, OpEx, and qualitative information for financial undertakings.
- [Regulation (EU) 2020/852 (Taxonomy Regulation)](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex:32020R0852&ref=sorena.io) - Article 8 requires covered undertakings to disclose how and to what extent their activities are associated with environmentally sustainable economic activities.

## How should teams handle technical screening criteria and DNSH evidence?

Treat every technical screening criterion as an evidence requirement, even when the criterion does not prescribe a formal verifier. The Climate Delegated Act notice says compliance checking requires collecting and assessing relevant information; it also explains that all substantial-contribution criteria, DNSH criteria, and minimum social safeguards must be met for an activity to be considered Taxonomy-aligned.

Evidence depth should match the criterion. For example, the Commission notice discusses adequate evidence for building top-15-percent assessments, coherent adaptation plans for DNSH climate adaptation where climate risks are identified, and supplier information or testing for some Appendix C pollution-prevention checks.

- Keep the exact criterion text or citation used for each activity and reporting period.
- Record the data, certificate, technical study, supplier statement, test result, adaptation plan, or verifier report used to support each criterion.
- Separate evidence for substantial contribution from DNSH evidence so a reviewer can see that both tests were performed.
- Reassess dynamic criteria when criteria change or an activity falls out of compliance; do not rely on a stale historic conclusion for current alignment.

Sources for this answer:

- [Commission Notice C/2023/267 on Climate Delegated Act technical screening criteria](https://eur-lex.europa.eu/eli/C/2023/267/oj/eng?ref=sorena.io) - Provides practical interpretation on checking technical screening criteria, verification reports, adequate evidence for building benchmarks, adaptation-plan documentation, and Appendix C evidence examples.
- [Regulation (EU) 2020/852 (Taxonomy Regulation)](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex:32020R0852&ref=sorena.io) - Article 19 says technical screening criteria should facilitate verification of compliance and should be based on evidence, thresholds where possible, and life-cycle considerations.

## What is the most common mistake with Taxonomy auditor evidence?

The common mistake is presenting a broad sustainability policy as evidence for a specific Taxonomy-aligned activity. That does not show how the activity met the relevant technical screening criteria, DNSH checks, minimum safeguards, and KPI allocation rules.

A stronger file is narrower and more traceable: it names the activity, the criteria version, the reporting period, the data source, the calculation or allocation method, the reviewer, and the unresolved limitations. For CapEx allocated across mixed-use assets, the Commission notice says the allocation methodology should be based on verifiable evidence.

- Avoid claiming external audit or assurance is required for every Taxonomy decision unless the applicable criterion or reporting rule says so.
- Avoid unsupported allocations of mixed-use CapEx, OpEx, revenue, or assets; preserve the non-financial metric and methodology used.
- Avoid relying on proxies where the Commission guidance says adequate evidence, a technical study, or the specified certificate is needed.
- Avoid dropping data limitations from the final disclosure narrative when they affected the KPI or alignment conclusion.

Sources for this answer:

- [Commission Notice C/2023/305 on Article 8 Disclosures Delegated Act reporting](https://eur-lex.europa.eu/eli/C/2023/305/oj/eng?ref=sorena.io) - Explains that CapEx allocation to Taxonomy-aligned activities should be accurate and based on verifiable evidence, with contextual information on allocation methodology.
- [Platform Recommendations on Data and Usability](https://finance.ec.europa.eu/system/files/2022-10/221011-sustainable-finance-platform-finance-report-usability_en_1.pdf?ref=sorena.io) - Advisory Platform report discussing verification and assurance questions, data availability, estimates, and usability issues in Taxonomy reporting.

## Primary sources

- [Regulation (EU) 2020/852 (Taxonomy Regulation)](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex:32020R0852&ref=sorena.io) - Primary Taxonomy Regulation source for Article 3 alignment conditions, Article 8 disclosure basis, Article 18 minimum safeguards, and Article 19 verification-oriented technical screening criteria.
  - Quote: "environmentally sustainable economic activities"
- [Commission Delegated Regulation (EU) 2021/2178 (Disclosures Delegated Act)](https://eur-lex.europa.eu/eli/reg_del/2021/2178/oj/eng?ref=sorena.io) - Specifies the content, presentation, and methodology for Article 8 Taxonomy disclosures, including non-financial undertaking KPIs and qualitative disclosure support.
  - Quote: "content and presentation of information"
- [Commission Notice C/2023/267 on Climate Delegated Act technical screening criteria](https://eur-lex.europa.eu/eli/C/2023/267/oj/eng?ref=sorena.io) - Official Commission notice for practical interpretation of technical screening criteria, DNSH documentation, adequate evidence, and activity-specific verification requirements.
  - Quote: "collection and assessment of relevant information"
- [Commission Notice C/2023/305 on Article 8 Disclosures Delegated Act reporting](https://eur-lex.europa.eu/eli/C/2023/305/oj/eng?ref=sorena.io) - Official Commission notice for Article 8 reporting questions, including verifiable evidence for allocation of CapEx to Taxonomy-aligned activities.
  - Quote: "based on verifiable evidence"
- [Platform Recommendations on Data and Usability](https://finance.ec.europa.eu/system/files/2022-10/221011-sustainable-finance-platform-finance-report-usability_en_1.pdf?ref=sorena.io) - Advisory Platform source for data, estimates, verification, and assurance usability considerations in Taxonomy reporting.
  - Quote: "Verification and Assurance"

## Topic Guides

- [DNSH Appendix C under the EU Taxonomy: chemicals evidence FAQ](/artifacts/eu/taxonomy-regulation/faq/dnsh-appendix-c.md): Practical FAQ on EU Taxonomy DNSH Appendix C chemicals criteria, including SVHCs, CLP hazard classes, the 0.1% w/w threshold, suitable alternatives, and controlled conditions evidence.
- [EU Taxonomy 2026 simplification: what should teams do?](/artifacts/eu/taxonomy-regulation/faq/2026-simplification.md): source-linked FAQ on EU Taxonomy 2026 simplification, Regulation (EU) 2026/73, Article 8 reporting, DNSH evidence, and limits on unsupported claims.
- [EU Taxonomy Activity Eligibility Workflow](/artifacts/eu/taxonomy-regulation/activity-eligibility-workflow.md): Build an EU Taxonomy activity eligibility workflow that maps economic activities to delegated-act descriptions before alignment, DNSH, and Article 8 KPI reporting.
- [EU Taxonomy activity evidence packs: what to retain](/artifacts/eu/taxonomy-regulation/faq/activity-evidence-packs.md): A practical FAQ on EU Taxonomy activity evidence packs: eligibility, alignment, DNSH, minimum safeguards, KPI traceability, and source-linked review records.
- [EU Taxonomy Applicability Test for Eligibility and Alignment](/artifacts/eu/taxonomy-regulation/applicability-test.md): Test EU Taxonomy applicability by separating Article 8 reporting scope, Taxonomy eligibility, Taxonomy alignment, DNSH, minimum safeguards, and KPI evidence.
- [EU Taxonomy Article 8 disclosure templates](/artifacts/eu/taxonomy-regulation/templates.md): source-linked EU Taxonomy templates for Article 8 reporting, covering non-financial KPIs, financial undertaking annexes, eligibility and alignment evidence, GAR inputs, and publication checks.
- [EU Taxonomy Article 8 KPI disclosure workflow](/artifacts/eu/taxonomy-regulation/kpis-and-disclosure-workflow.md): source-linked workflow for EU Taxonomy Article 8 KPI disclosures, covering turnover, CapEx, OpEx, GAR dependencies, templates, contextual information, and publication checks.
- [EU Taxonomy Article 8 Scope and Reporting Entities](/artifacts/eu/taxonomy-regulation/scope-and-reporting-entities.md): Determine which financial and non-financial undertakings report under EU Taxonomy Article 8, which annexes apply, and what evidence supports the reporting boundary.
- [EU Taxonomy Article 8 Scope FAQ](/artifacts/eu/taxonomy-regulation/faq/article-8-scope.md): source-linked FAQ on EU Taxonomy Article 8 scope, including who reports, which KPI framework applies, and what evidence teams should retain.
- [EU Taxonomy CapEx Plan Evidence Workflow](/artifacts/eu/taxonomy-regulation/capex-plan-evidence-workflow.md): Build an EU Taxonomy CapEx plan evidence workflow for Article 8 CapEx KPI reporting, management-body approval, milestones, amendments, allocation, and restatement controls.
- [EU Taxonomy CapEx Plan Evidence: Article 8 checklist](/artifacts/eu/taxonomy-regulation/capex-plan-evidence.md): Build evidence for EU Taxonomy CapEx plans under Article 8, Annex I Section 1.1.2.2 and the Disclosures Delegated Act.
- [EU Taxonomy CapEx Plans FAQ: Article 8 CapEx KPI](/artifacts/eu/taxonomy-regulation/faq/capex-plans.md): Practical FAQ on EU Taxonomy CapEx plans under Article 8, Annex I Section 1.1.2.2, management-body approval, timing, activity-level evidence, and KPI restatement.
- [EU Taxonomy compliance guide: eligibility, alignment and Article 8 KPIs](/artifacts/eu/taxonomy-regulation/compliance.md): Practical EU Taxonomy compliance guide for mapping eligible activities, testing alignment, collecting DNSH and minimum-safeguards evidence, and preparing Article 8 disclosures.
- [EU Taxonomy deadlines and Article 8 compliance calendar](/artifacts/eu/taxonomy-regulation/deadlines-and-compliance-calendar.md): source-linked EU Taxonomy calendar for Article 8 reporting phases, environmental objective application dates, delegated-act updates, and evidence review gates.
- [EU Taxonomy Delegated Act Change Tracker](/artifacts/eu/taxonomy-regulation/delegated-act-change-tracker.md): Track adopted and proposed EU Taxonomy delegated-act changes by source, status, affected criteria, Article 8 disclosure impact, owner, and evidence update.
- [EU Taxonomy delegated act changes: what teams should check](/artifacts/eu/taxonomy-regulation/faq/delegated-act-changes.md): FAQ on handling EU Taxonomy delegated act changes: official source checks, application dates, affected criteria, disclosures, DNSH evidence, and review records.
- [EU Taxonomy Delegated Acts Tracker](/artifacts/eu/taxonomy-regulation/delegated-acts-tracker.md): Track EU Taxonomy delegated acts by legal status, objective, reporting impact, activity scope, DNSH criteria, Article 8 disclosures, and owner follow-up.
- [EU Taxonomy DNSH and Minimum Safeguards evidence guide](/artifacts/eu/taxonomy-regulation/dnsh-and-minimum-safeguards.md): source-linked guide to EU Taxonomy DNSH and minimum safeguards: Article 3 alignment gates, Article 17 significant harm, Article 18 safeguards, evidence records, and KPI controls.
- [EU Taxonomy DNSH Appendix C: chemicals evidence guide](/artifacts/eu/taxonomy-regulation/dnsh-appendix-c.md): source-linked guide to EU Taxonomy DNSH Appendix C chemicals checks, including SVHC thresholds, alternatives, controlled conditions, and evidence records.
- [EU Taxonomy Eligibility vs Alignment](/artifacts/eu/taxonomy-regulation/taxonomy-eligibility-vs-alignment.md): Compare EU Taxonomy eligibility and alignment under Article 8: what each term means, what evidence is needed, which KPIs are affected, and why eligibility is not proof of sustainability.
- [EU Taxonomy Eligibility vs Alignment Explained](/artifacts/eu/taxonomy-regulation/taxonomy-eligibility-vs-alignment-explained.md): Explain EU Taxonomy eligibility and alignment under Article 8, the Disclosures Delegated Act, Article 3, technical screening criteria, DNSH, and safeguards.
- [EU Taxonomy eligibility vs alignment: what is the difference?](/artifacts/eu/taxonomy-regulation/faq/eligibility-vs-alignment.md): Eligibility means an activity is covered by Taxonomy delegated acts; alignment means it also meets Article 3 conditions, technical screening criteria, DNSH, and minimum safeguards.
- [EU Taxonomy FAQ: eligibility, alignment, DNSH, safeguards, and Article 8](/artifacts/eu/taxonomy-regulation/faq.md): EU Taxonomy FAQ hub for eligibility, alignment, technical screening criteria, DNSH, minimum safeguards, Article 8 KPIs, delegated acts, and evidence records.
- [EU Taxonomy Financial KPIs and Green Asset Ratio (GAR) FAQ](/artifacts/eu/taxonomy-regulation/faq/financial-kpis-and-gar.md): FAQ on EU Taxonomy Article 8 financial undertaking KPIs, credit institution Green Asset Ratio (GAR), reporting dates, exclusions, and qualitative disclosures.
- [EU Taxonomy GAR and financial undertaking KPIs](/artifacts/eu/taxonomy-regulation/gar-and-financial-undertaking-kpis.md): source-linked guide to EU Taxonomy Article 8 financial undertaking KPIs, including GAR, asset manager KPIs, investment firm KPIs, insurance KPIs, exclusions, and reporting evidence.
- [EU Taxonomy GAR KPI workflow for credit institutions](/artifacts/eu/taxonomy-regulation/gar-kpi-workflow.md): source-linked workflow for preparing EU Taxonomy Green Asset Ratio (GAR) KPI disclosures under Article 8 and the Disclosures Delegated Act.
- [EU Taxonomy minimum safeguards FAQ: Article 18 evidence](/artifacts/eu/taxonomy-regulation/faq/minimum-safeguards.md): FAQ on EU Taxonomy minimum safeguards under Article 18: who must comply, which OECD, UNGP, ILO and human-rights evidence to keep, and common reporting mistakes.
- [EU Taxonomy Minimum Safeguards: Article 18 and evidence](/artifacts/eu/taxonomy-regulation/minimum-safeguards.md): Understand how Article 18 minimum safeguards fit into EU Taxonomy alignment, which international standards they reference, and what evidence supports the assessment.
- [EU Taxonomy non-financial KPIs: turnover, CapEx and OpEx](/artifacts/eu/taxonomy-regulation/faq/non-financial-kpis.md): Article 8 FAQ for non-financial undertakings reporting EU Taxonomy turnover, CapEx and OpEx KPIs, with evidence and source checks.
- [EU Taxonomy Penalties and Fines: Article 22 Disclosure Risk](/artifacts/eu/taxonomy-regulation/penalties-and-fines.md): Understand where EU Taxonomy penalty exposure starts: Article 22 measures and penalties for Articles 5, 6, and 7 financial product disclosures, with practical evidence controls.
- [EU Taxonomy Regulation Checklist for Eligibility and Alignment](/artifacts/eu/taxonomy-regulation/checklist.md): A source-linked EU Taxonomy checklist for mapping eligible activities, testing alignment, documenting DNSH and minimum safeguards, and preparing Article 8 KPI disclosures.
- [EU Taxonomy Regulation requirements: eligibility, alignment, KPIs](/artifacts/eu/taxonomy-regulation/requirements.md): Understand the core EU Taxonomy requirements: Article 3 alignment tests, eligible activities, DNSH, minimum safeguards, Article 8 KPIs, and evidence to keep.
- [EU Taxonomy screening criteria and documentation guide](/artifacts/eu/taxonomy-regulation/screening-criteria-and-documentation.md): How to document EU Taxonomy eligibility, alignment, technical screening criteria, DNSH, minimum safeguards, and Article 8 KPI disclosures without overstating the evidence.
- [EU Taxonomy Six Environmental Objectives | Article 9 FAQ](/artifacts/eu/taxonomy-regulation/faq/six-environmental-objectives.md): Plain-English FAQ on the six EU Taxonomy environmental objectives in Article 9 and how teams should map activities, DNSH checks, safeguards, and evidence.
- [EU Taxonomy vs CSRD: Article 8 Reporting Comparison](/artifacts/eu/taxonomy-regulation/taxonomy-vs-csrd.md): Compare EU Taxonomy Article 8 disclosures with CSRD sustainability reporting scope, evidence, KPIs, assurance, and reuse limits using official EU Taxonomy sources.
- [EU Taxonomy vs SFDR: Scope, KPIs, and Evidence](/artifacts/eu/taxonomy-regulation/taxonomy-vs-sfdr.md): Compare the EU Taxonomy and the SFDR link points that appear in Taxonomy materials: activity classification, Article 8 KPIs, product disclosures, data reuse, and evidence limits.

*Recommended next step*

*Placement: after evidence section*

## Turn EU Taxonomy guidance into an evidence workflow

Use this EU Taxonomy guide to connect source-linked decisions, owners, and evidence records before teams publish, report, ship, or change controls.

- [Open Research Copilot](/solutions/research-copilot.md): Answer EU Taxonomy implementation questions with cited source material.
- [Discuss EU Taxonomy implementation](/contact.md): Review scope, source evidence, and next implementation steps with Sorena.


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