---
title: "CSRD and ESRS FAQ: scope, materiality, assurance, tagging, and value chain"
canonical_url: "https://www.sorena.io/artifacts/eu/corporate-sustainability-reporting-directive/faq"
source_url: "https://www.sorena.io/artifacts/eu/corporate-sustainability-reporting-directive/faq/items/page/3"
author: "Sorena AI"
description: "CSRD and ESRS FAQ hub covering company scope, reporting waves, ESRS structure, double materiality, assurance, digital tagging, Taxonomy Article 8, and value chain data."
published_at: "2026-05-09"
updated_at: "2026-05-09"
keywords:
  - "CSRD FAQ"
  - "ESRS FAQ"
  - "Directive (EU) 2022/2464"
  - "Delegated Regulation (EU) 2023/2772"
  - "double materiality"
  - "value chain reporting"
  - "digital tagging"
  - "sustainability assurance"
  - "CSRD"
  - "ESRS"
  - "sustainability reporting"
  - "value chain"
  - "assurance"
---
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# CSRD and ESRS FAQ: scope, materiality, assurance, tagging, and value chain

CSRD and ESRS FAQ hub covering company scope, reporting waves, ESRS structure, double materiality, assurance, digital tagging, Taxonomy Article 8, and value chain data.

*FAQ Hub* *CSRD* *EU*

## CSRD and ESRS FAQ scope, reporting, materiality, assurance, tagging, and value chain

Direct answers for teams deciding whether CSRD applies, which ESRS disclosures matter, and what evidence belongs in the sustainability reporting file.

The linked FAQ modules cover scope, reporting waves, ESRS 1 and ESRS 2, topical ESRS scoping, double materiality, assurance evidence, digital tagging, Article 8 KPIs, listed SME standards, third-country groups, and value chain estimates.

The Corporate Sustainability Reporting Directive changes EU sustainability reporting by extending reporting beyond the old non-financial reporting population and requiring companies in scope to report under European Sustainability Reporting Standards. Use this FAQ hub to find the specific answer behind a CSRD decision: entity scope, first reporting year, ESRS datapoint inventory, double materiality, value chain data, assurance, digital filing, or EU Taxonomy Article 8 reporting.

## Browse sub-FAQ modules

### [CSRD Article 40a third-country group reporting FAQ](/artifacts/eu/corporate-sustainability-reporting-directive/faq/third-country-groups.md)

FAQ on when CSRD Article 40a applies to third-country groups, which EU subsidiary or branch publishes the report, and what happens with assurance and missing information.

- 5 items

### [CSRD assurance evidence FAQ: what to keep for limited assurance](/artifacts/eu/corporate-sustainability-reporting-directive/faq/assurance-evidence.md)

What CSRD and ESRS assurance evidence should support: management-report publication, the assurance report, national assurance procedures, and EU limited assurance milestones.

- 5 items

### [CSRD data point inventory FAQ for ESRS disclosure readiness](/artifacts/eu/corporate-sustainability-reporting-directive/faq/data-point-inventory.md)

How to build an ESRS data point inventory for CSRD reporting: disclosure requirements, materiality filters, evidence ownership, value-chain data, XBRL readiness, and assurance support.

- 5 items

### [CSRD digital tagging and XBRL readiness FAQ](/artifacts/eu/corporate-sustainability-reporting-directive/faq/digital-tagging-xbrl.md)

What CSRD teams should do now about XHTML, Inline XBRL, ESRS taxonomy materials, tagging controls, and limits before final digital taxonomy rules apply.

- 4 items

### [CSRD omnibus stop-the-clock status: enacted delay vs proposed scope changes](/artifacts/eu/corporate-sustainability-reporting-directive/faq/omnibus-stop-the-clock-status.md)

FAQ on the CSRD stop-the-clock directive, the separate Omnibus proposal, and how reporting teams should treat enacted and proposed changes.

- 4 items

### [CSRD reporting waves FAQ: who reports first and what changed](/artifacts/eu/corporate-sustainability-reporting-directive/faq/reporting-waves.md)

FAQ on original CSRD reporting waves, stop-the-clock caveats, listed SME opt-out, third-country reporting, and why local transposition law still matters.

- 5 items

### [CSRD topical ESRS scoping: what must be reported?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/topical-esrs-scoping.md)

FAQ on CSRD topical ESRS scoping: ESRS 2, double materiality, topical disclosure requirements, omitted topics, climate, and Appendix B datapoints.

- 4 items

### [FAQ: CSRD double materiality scoring — thresholds, weighting, and evidence](/artifacts/eu/corporate-sustainability-reporting-directive/faq/double-materiality-scoring.md)

How to score CSRD double materiality under ESRS without invented thresholds: impact materiality, financial materiality, evidence, and documentation.

- 4 items

### [FAQ: CSRD value chain estimates — methods and proportionality under ESRS](/artifacts/eu/corporate-sustainability-reporting-directive/faq/value-chain-estimates.md)

When ESRS permits value chain estimates, what to disclose about assumptions, accuracy, limits, and improvement plans.

- 4 items

### [How do ESRS 1 and ESRS 2 structure CSRD reporting?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/esrs-1-and-2-structure.md)

FAQ explaining how ESRS 1 general requirements and ESRS 2 general disclosures fit into CSRD reporting, materiality, and topical ESRS disclosures.

- 4 items

### [LSME and VSME under EU CSRD: what SMEs should know](/artifacts/eu/corporate-sustainability-reporting-directive/faq/lsme-and-vsme.md)

FAQ on LSME and VSME under the EU CSRD: listed SME reporting, the temporary opt-out, voluntary SME reporting, and value-chain requests.

- 4 items

### [Taxonomy Article 8 KPIs under CSRD and ESRS](/artifacts/eu/corporate-sustainability-reporting-directive/faq/taxonomy-article-8-kpis.md)

FAQ explaining how EU Taxonomy Article 8 KPI disclosures relate to CSRD, ESRS, and the Article 8 XBRL taxonomy.

- 5 items

Browse all indexed questions: [/artifacts/eu/corporate-sustainability-reporting-directive/faq/items](/artifacts/eu/corporate-sustainability-reporting-directive/faq/items.md)

## All FAQ items

*Page 3 of 3. Showing 13 of 53 items.*

### [What is the difference between ESRS 1 and ESRS 2?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/esrs-1-and-2-structure.md#what-is-the-difference-between-esrs-1-and-esrs-2)

*Module: [How do ESRS 1 and ESRS 2 structure CSRD reporting?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/esrs-1-and-2-structure.md)*

ESRS 1 is the rulebook for how to read and apply the ESRS set. It explains the categories of standards, double materiality, value-chain reporting, time horizons, presentation of the sustainability statement, and concepts such as impacts, risks and opportunities.

- Use ESRS 1 to decide the reporting architecture, materiality approach, value-chain boundaries, disclosure structure, and whether entity-specific disclosures are needed.
- Use ESRS 2 to prepare the cross-cutting disclosures that sit across the sustainability statement, including basis for preparation (BP), governance (GOV), strategy, business model and value chain (SBM), impact, risk and opportunity management (IRO), and minimum disclosure requirements (MDR) disclosures.
- Do not treat ESRS 1 as a topic standard; it explains how the standards operate rather than listing climate, workforce, pollution, or business-conduct datapoints.

Sources for this answer:

- [European sustainability reporting standards (ESRS)](https://xbrl.efrag.org/e-esrs/esrs-set1-2023.html?ref=sorena.io) - Supports the distinction between ESRS 1 as the general requirements standard and ESRS 2 as the general disclosures standard.
- [Questions and Answers on the Adoption of European Sustainability Reporting Standards](https://ec.europa.eu/commission/presscorner/detail/en/qanda_23_4043?ref=sorena.io) - Explains that ESRS 1 sets general principles and ESRS 2 specifies essential information to be disclosed.

### [How do cross-cutting and topical ESRS work together?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/esrs-1-and-2-structure.md#how-do-cross-cutting-and-topical-esrs-work-together)

*Module: [How do ESRS 1 and ESRS 2 structure CSRD reporting?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/esrs-1-and-2-structure.md)*

The ESRS architecture has three categories: cross-cutting standards, topical standards, and sector-specific standards. ESRS 1 and ESRS 2 are the cross-cutting standards and apply across the sustainability matters covered by topical and sector-specific standards.

- Cross-cutting layer: ESRS 1 supplies concepts and application rules; ESRS 2 supplies general disclosures.
- Topical layer: E1 to E5, S1 to S4, and G1 supply subject-specific disclosure requirements for material matters.
- Entity-specific layer: if a material impact, risk, or opportunity is not covered, or is not covered with enough granularity, ESRS 1 requires additional entity-specific disclosure.

Sources for this answer:

- [European sustainability reporting standards (ESRS)](https://xbrl.efrag.org/e-esrs/esrs-set1-2023.html?ref=sorena.io) - Supports the three ESRS categories and the relationship between cross-cutting, topical, sector-specific, and entity-specific disclosures.
- [Questions and Answers on the Adoption of European Sustainability Reporting Standards](https://ec.europa.eu/commission/presscorner/detail/en/qanda_23_4043?ref=sorena.io) - Supports the explanation that other standards and their datapoints are generally subject to materiality assessment, unlike ESRS 2.

### [What does materiality change in the ESRS 1 and ESRS 2 structure?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/esrs-1-and-2-structure.md#what-does-materiality-change-in-the-esrs-1-and-esrs-2-structure)

*Module: [How do ESRS 1 and ESRS 2 structure CSRD reporting?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/esrs-1-and-2-structure.md)*

Materiality is the starting point for ESRS reporting. ESRS uses double materiality: a sustainability matter is material if it meets the criteria for impact materiality, financial materiality, or both. The assessment covers impacts, risks, and opportunities in the undertaking's own operations and upstream and downstream value chain.

- ESRS 2 IRO-1 explains the process used to identify and assess material impacts, risks, and opportunities.
- ESRS 2 SBM-3 explains the material impacts, risks, and opportunities resulting from the assessment and their interaction with strategy and business model.
- ESRS 2 IRO-2 identifies which ESRS disclosure requirements are covered by the sustainability statement.
- For metrics, ESRS allows omission of information assessed as not material when the omission still meets the objective of the relevant disclosure requirement.

Sources for this answer:

- [European sustainability reporting standards (ESRS)](https://xbrl.efrag.org/e-esrs/esrs-set1-2023.html?ref=sorena.io) - Supports the double materiality rule, the always-disclosed ESRS 2 layer, and the link between material matters and topical standards.
- [ESRS implementation guidance documents](https://www.efrag.org/en/projects/esrs-implementation-guidance-documents?ref=sorena.io) - Identifies EFRAG's non-authoritative implementation guidance, including IG 1 Materiality Assessment, as support for applying the ESRS materiality approach.

### [What should a company map before drafting ESRS disclosures?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/esrs-1-and-2-structure.md#what-should-a-company-map-before-drafting-esrs-disclosures)

*Module: [How do ESRS 1 and ESRS 2 structure CSRD reporting?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/esrs-1-and-2-structure.md)*

A useful ESRS 1 and ESRS 2 map starts with architecture, not with a list of copied datapoints. The reporting team should know which cross-cutting disclosures are always in scope, which topical matters are material, which value-chain impacts, risks, and opportunities are included, and where entity-specific disclosures are needed.

- List all ESRS 2 general disclosures that must be addressed in the sustainability statement.
- Record the materiality conclusion for each relevant sustainability matter, including impact and financial materiality considerations.
- For each material matter, connect the topical ESRS requirements to ESRS 2 MDR-P, MDR-A, MDR-M, and MDR-T - the minimum disclosure requirements for policies, actions, metrics, and targets - where they apply.
- Flag any material impact, risk, or opportunity that needs entity-specific disclosure because the standards do not cover it with enough granularity.
- Keep evidence for the criteria, thresholds, judgments, and source references used in the materiality assessment and disclosure map.

Sources for this answer:

- [European sustainability reporting standards (ESRS)](https://xbrl.efrag.org/e-esrs/esrs-set1-2023.html?ref=sorena.io) - Supports the disclosure map: reporting areas, datapoints, minimum disclosure requirements, and entity-specific disclosure logic.
- [ESRS implementation guidance documents](https://www.efrag.org/en/projects/esrs-implementation-guidance-documents?ref=sorena.io) - Supports use of EFRAG implementation guidance for materiality, value chain, and ESRS datapoint mapping.

### [What is the difference between LSME and VSME under the EU CSRD?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/lsme-and-vsme.md#what-is-the-difference-between-lsme-and-vsme-under-the-eu-csrd)

*Module: [LSME and VSME under EU CSRD: what SMEs should know](/artifacts/eu/corporate-sustainability-reporting-directive/faq/lsme-and-vsme.md)*

LSME is the listed-SME track. The CSRD amends the Accounting Directive so that small and medium-sized undertakings, except micro-undertakings, whose securities are admitted to trading on an EU regulated market are in scope for sustainability reporting. Those undertakings may limit reporting to specified SME information and report under sustainability reporting standards for small and medium-sized undertakings.

- Use LSME analysis when the company is an SME issuer on an EU regulated market and is not a micro-undertaking.
- Use VSME analysis when the company is outside mandatory CSRD reporting and wants a voluntary, proportionate response format for sustainability data requests.
- Do not treat VSME as a substitute for mandatory CSRD reporting by a listed SME unless the applicable legal standard permits that result.

Sources for this answer:

- [Directive (EU) 2022/2464 on corporate sustainability reporting](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32022L2464&ref=sorena.io) - Supports the listed-SME scope rule, the exclusion of micro-undertakings, and the SME reporting derogation in the CSRD amendments.
- [Commission Q&A on the adoption of ESRS](https://ec.europa.eu/commission/presscorner/detail/en/qanda_23_4043?ref=sorena.io) - Explains that the Accounting Directive as amended by CSRD imposes no new reporting requirements on SMEs except listed SMEs.
- [Commission voluntary sustainability reporting standard for SMEs](https://finance.ec.europa.eu/publications/commission-presents-voluntary-sustainability-reporting-standard-ease-burden-smes_en?ref=sorena.io) - Supports the VSME context for voluntary reporting by SMEs responding to CSRD-related value-chain information requests.

### [When does the CSRD listed-SME opt-out matter?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/lsme-and-vsme.md#when-does-the-csrd-listed-sme-opt-out-matter)

*Module: [LSME and VSME under EU CSRD: what SMEs should know](/artifacts/eu/corporate-sustainability-reporting-directive/faq/lsme-and-vsme.md)*

The listed-SME opt-out matters only for SMEs in the CSRD listed-SME category. The CSRD text says that, for financial years starting before 1 January 2028, the relevant small and medium-sized public-interest undertakings may decide not to include the sustainability information in their management report.

- Confirm the company is a listed SME in scope and not a micro-undertaking before relying on the opt-out.
- Record the financial year for which the opt-out is used and the management-report explanation.
- Do not apply the listed-SME opt-out to non-listed SMEs; their issue is usually voluntary reporting or value-chain requests, not a CSRD reporting deferral.

Sources for this answer:

- [Directive (EU) 2022/2464 on corporate sustainability reporting](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32022L2464&ref=sorena.io) - Supports the temporary opt-out for listed SMEs and the requirement to explain why sustainability reporting was not provided.
- [Commission Q&A on the adoption of ESRS](https://ec.europa.eu/commission/presscorner/detail/en/qanda_23_4043?ref=sorena.io) - Provides Commission context that listed SMEs may opt out for a further two years after the initial listed-SME reporting start.

### [How should a non-listed SME use VSME in practice?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/lsme-and-vsme.md#how-should-a-non-listed-sme-use-vsme-in-practice)

*Module: [LSME and VSME under EU CSRD: what SMEs should know](/artifacts/eu/corporate-sustainability-reporting-directive/faq/lsme-and-vsme.md)*

A non-listed SME should use VSME as a voluntary response framework, not as a new mandatory CSRD obligation. The Commission says the voluntary standard is intended to reduce administrative burden by helping SMEs respond to sustainability information requests from large companies and financial institutions that are themselves subject to mandatory CSRD reporting.

- Map incoming sustainability questionnaires to VSME topics before creating custom answers.
- Keep the source request, the VSME response, the evidence owner, and any unavailable-data explanation together.
- Flag requests that appear to exceed the voluntary standard or the grounded value-chain cap context for commercial or legal review.

Sources for this answer:

- [Commission voluntary sustainability reporting standard for SMEs](https://finance.ec.europa.eu/publications/commission-presents-voluntary-sustainability-reporting-standard-ease-burden-smes_en?ref=sorena.io) - Supports using VSME to answer sustainability information requests from CSRD-reporting large companies and financial institutions.
- [Commission Q&A on the VSME Recommendation](https://finance.ec.europa.eu/publications/questions-and-answers-recommendation-voluntary-sustainability-reporting-standard-small-and-medium_en?ref=sorena.io) - Supports the Commission's context that VSME can replace a substantial portion of recurring bank and large-undertaking information requests.

### [What should teams avoid when deciding between LSME and VSME?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/lsme-and-vsme.md#what-should-teams-avoid-when-deciding-between-lsme-and-vsme)

*Module: [LSME and VSME under EU CSRD: what SMEs should know](/artifacts/eu/corporate-sustainability-reporting-directive/faq/lsme-and-vsme.md)*

The main mistake is mixing the two tracks. A listed SME needs a CSRD scope and reporting analysis, including whether it can rely on the temporary opt-out and whether a proportionate listed-SME standard applies. A non-listed SME usually needs a voluntary reporting and customer-request strategy, not a statement that CSRD directly applies to it.

- Do not cite VSME as mandatory CSRD reporting for every SME.
- Do not rely on an opt-out without confirming listed-SME status and the required management-report explanation.
- Do not promise a final LSME or future voluntary-standard position unless the current legal source supports it.

Sources for this answer:

- [Commission Q&A on the adoption of ESRS](https://ec.europa.eu/commission/presscorner/detail/en/qanda_23_4043?ref=sorena.io) - Supports separating listed-SME reporting from non-listed SME voluntary reporting under the CSRD framework.
- [Commission Q&A on the VSME Recommendation](https://finance.ec.europa.eu/publications/questions-and-answers-recommendation-voluntary-sustainability-reporting-standard-small-and-medium_en?ref=sorena.io) - Supports caution that a future voluntary standard may differ from the current VSME Recommendation.

### [How do Article 8 KPIs relate to CSRD reporting?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/taxonomy-article-8-kpis.md#how-do-article-8-kpis-relate-to-csrd-reporting)

*Module: [Taxonomy Article 8 KPIs under CSRD and ESRS](/artifacts/eu/corporate-sustainability-reporting-directive/faq/taxonomy-article-8-kpis.md)*

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.

- 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.

Sources for this answer:

- [Article 8 Taxonomy - Explanatory Note and Basis for Conclusions](https://xbrl.efrag.org/downloads/Article8-XBRL-Taxonomy-Explanatory-Note-and-Basis-for-Conclusions.pdf?ref=sorena.io) - Summarizes the Article 8 disclosure regulation and identifies turnover, CapEx, and OpEx as the non-financial undertaking KPI areas represented in the Article 8 taxonomy.

### [Are Article 8 KPIs part of ESRS?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/taxonomy-article-8-kpis.md#are-article-8-kpis-part-of-esrs)

*Module: [Taxonomy Article 8 KPIs under CSRD and ESRS](/artifacts/eu/corporate-sustainability-reporting-directive/faq/taxonomy-article-8-kpis.md)*

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.

- 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.

Sources for this answer:

- [ESRS Set 1 XBRL Taxonomy - Explanatory Note and Basis for Conclusions](https://xbrl.efrag.org/downloads/ESRS-Set1-XBRL-Taxonomy-Explanatory-Note-and-Basis-for-Conclusions.pdf?ref=sorena.io) - Describes the ESRS Set 1 XBRL taxonomy and separately identifies the Article 8 XBRL taxonomy for Article 8 disclosures.
- [European sustainability reporting standards (ESRS)](https://xbrl.efrag.org/e-esrs/esrs-set1-2023.html?ref=sorena.io) - Provides the ESRS reporting reference point for CSRD sustainability statements alongside, but distinct from, Article 8 KPI templates.

### [What does the Article 8 XBRL taxonomy add?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/taxonomy-article-8-kpis.md#what-does-the-article-8-xbrl-taxonomy-add)

*Module: [Taxonomy Article 8 KPIs under CSRD and ESRS](/artifacts/eu/corporate-sustainability-reporting-directive/faq/taxonomy-article-8-kpis.md)*

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.

- 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.

Sources for this answer:

- [Article 8 Taxonomy - Explanatory Note and Basis for Conclusions](https://xbrl.efrag.org/downloads/Article8-XBRL-Taxonomy-Explanatory-Note-and-Basis-for-Conclusions.pdf?ref=sorena.io) - Explains the purpose, architecture, closed-taxonomy approach, and illustrative tagging structures for the Article 8 XBRL taxonomy.
- [ESRS Set 1 XBRL Taxonomy - Explanatory Note and Basis for Conclusions](https://xbrl.efrag.org/downloads/ESRS-Set1-XBRL-Taxonomy-Explanatory-Note-and-Basis-for-Conclusions.pdf?ref=sorena.io) - Explains the wider ESRS digital taxonomy context and the role of Inline XBRL in sustainability reporting.

### [What evidence should the reporting team keep?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/taxonomy-article-8-kpis.md#what-evidence-should-the-reporting-team-keep)

*Module: [Taxonomy Article 8 KPIs under CSRD and ESRS](/artifacts/eu/corporate-sustainability-reporting-directive/faq/taxonomy-article-8-kpis.md)*

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.

- 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.

Sources for this answer:

- [Article 8 Taxonomy - Explanatory Note and Basis for Conclusions](https://xbrl.efrag.org/downloads/Article8-XBRL-Taxonomy-Explanatory-Note-and-Basis-for-Conclusions.pdf?ref=sorena.io) - Supports the XBRL mapping evidence requirement by describing Article 8 tables, dimensions, line items, text blocks, and Inline XBRL tagging concepts.

### [What is the main implementation risk?](/artifacts/eu/corporate-sustainability-reporting-directive/faq/taxonomy-article-8-kpis.md#what-is-the-main-implementation-risk)

*Module: [Taxonomy Article 8 KPIs under CSRD and ESRS](/artifacts/eu/corporate-sustainability-reporting-directive/faq/taxonomy-article-8-kpis.md)*

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.

- 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.

Sources for this answer:

- [Article 8 Taxonomy - Explanatory Note and Basis for Conclusions](https://xbrl.efrag.org/downloads/Article8-XBRL-Taxonomy-Explanatory-Note-and-Basis-for-Conclusions.pdf?ref=sorena.io) - States that EFRAG provides digital and technical support for Article 8 disclosures and does not own the substance of the Taxonomy disclosure requirements.
- [Frequently asked questions on the implementation of the EU corporate sustainability reporting rules](https://finance.ec.europa.eu/publications/frequently-asked-questions-implementation-eu-corporate-sustainability-reporting-rules_en?ref=sorena.io) - Provides European Commission implementation context for CSRD reporting rules and related practical questions.

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*Placement: before primary sources*

## Build a CSRD evidence file before drafting the sustainability statement

Use the CSRD FAQ modules to connect entity scope, ESRS materiality, value chain data, assurance evidence, digital tagging, and Article 8 KPI support before reporting starts.

- [Open Research Copilot](/solutions/research-copilot.md): Answer CSRD and ESRS implementation questions with cited source material.
- [Discuss CSRD and ESRS implementation](/contact.md): Review scope, ESRS evidence, assurance readiness, and reporting workflow with Sorena.


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Source: https://www.sorena.io/artifacts/eu/corporate-sustainability-reporting-directive/faq/items/page/3