--- title: "CSRD double materiality method under ESRS" canonical_url: "https://www.sorena.io/artifacts/eu/corporate-sustainability-reporting-directive/double-materiality-method" source_url: "https://www.sorena.io/artifacts/eu/corporate-sustainability-reporting-directive/double-materiality-method" author: "Sorena AI" description: "A practical method for ESRS double materiality assessment: impact materiality, financial materiality, value-chain coverage, thresholds, evidence, and documentation." published_at: "2026-05-09" updated_at: "2026-07-25" keywords: - "CSRD double materiality" - "ESRS materiality assessment" - "impact materiality" - "financial materiality" - "value chain" - "IRO assessment" - "CSRD" - "ESRS" - "double materiality" --- **[SORENA](https://www.sorena.io/)** - AI-Powered GRC Platform [Home](https://www.sorena.io/) | [Solutions](https://www.sorena.io/solutions) | [Artifacts](https://www.sorena.io/artifacts) | [About Us](https://www.sorena.io/about-us) | [Contact](https://www.sorena.io/contact) | [Portal](https://app.sorena.io) --- # CSRD double materiality method under ESRS A practical method for ESRS double materiality assessment: impact materiality, financial materiality, value-chain coverage, thresholds, evidence, and documentation. *CSRD* *Double materiality* *ESRS* ## CSRD double materiality method for ESRS reporting Build the ESRS materiality assessment around impacts, risks and opportunities, not around a generic sustainability topic list. This page explains how to structure impact materiality, financial materiality, value-chain coverage, thresholds, evidence, and documentation for a defensible sustainability statement. Under ESRS, double materiality is the basis for deciding which sustainability matters and related impacts, risks and opportunities (IROs) must be reported. A matter can be material because of the undertaking's impacts on people or the environment, because of risks or opportunities that affect the undertaking financially, or because both perspectives apply. Record the ESRS edition used: the Commission adopted revised ESRS on 3 July 2026, but they remain under Parliament and Council scrutiny and do not apply until that process ends. ## Definitions ### Double materiality Double materiality is the ESRS rule that a sustainability matter is material when it is material from the impact perspective, the financial perspective, or both. Impact materiality concerns the undertaking's actual or potential positive or negative impacts on people or the environment. Financial materiality concerns sustainability-related risks or opportunities that affect or could reasonably be expected to affect financial position, financial performance, cash flows, access to finance, or cost of capital. **Why it matters here:** The two perspectives are assessed separately and then combined into the list of material impacts, risks, and opportunities that drives the sustainability statement. A matter does not need to satisfy both perspectives, and a financially immaterial impact can still require reporting when it is material from the impact perspective. Sources: - [Commission Delegated Regulation (EU) 2023/2772 adopting ESRS](https://data.europa.eu/eli/reg_del/2023/2772/oj?ref=sorena.io) ## Start with the ESRS materiality question The method should begin by defining the reporting undertaking, reporting period, applicable ESRS edition, business model, activities, products, services, geographies, value-chain relationships, and users of the sustainability statement. The assessment then identifies impacts, risks and opportunities across environmental, social, human rights and governance matters. Do not treat ESRS AR 16 topic, subtopic and sub-subtopic lists as the final answer. Use them as a starting structure, then test whether actual or potential IROs make the matter material and whether the ESRS disclosure requirements or entity-specific disclosures are needed. - Define the reporting perimeter and the internal business lines, subsidiaries, sites, assets or countries that may need separate analysis. - Create an IRO inventory with the sustainability matter, affected stakeholder or user group, source of evidence, time horizon, and value-chain location. - Record whether each matter is material from the impact perspective, the financial perspective, or both. - Map each material matter to ESRS 2 IRO-1, ESRS 2 SBM-3, ESRS 2 IRO-2, the relevant topical ESRS disclosure requirements, and any entity-specific disclosure gap. Sources for this answer: - [Commission Delegated Regulation (EU) 2023/2772 adopting ESRS](https://data.europa.eu/eli/reg_del/2023/2772/oj?ref=sorena.io) - Defines double materiality, impact materiality, financial materiality, impacts, business relationships, and value chain for ESRS reporting. - [European sustainability reporting standards (ESRS)](https://xbrl.efrag.org/e-esrs/esrs-set1-2023.html?ref=sorena.io) - Public ESRS rendering used for the cross-cutting standards and the ESRS 2 disclosures driven by the materiality assessment. - [ESRS implementation guidance documents](https://www.efrag.org/en/projects/esrs-implementation-guidance-documents?ref=sorena.io) - EFRAG identifies IG 1 Materiality Assessment, IG 2 Value Chain, and IG 3 Datapoints as non-authoritative implementation support for ESRS preparers. - [Commission adopts revised sustainability reporting standards](https://finance.ec.europa.eu/news/commission-adopts-revised-sustainability-reporting-standards-2026-07-03_en?ref=sorena.io) - Current official status of the revised ESRS adopted on 3 July 2026 and still under Parliament and Council scrutiny. *Recommended next step* *Placement: after evidence section* ## Turn the ESRS materiality assessment into an evidence file This method helps organise IRO evidence, value-chain assumptions, thresholds, ESRS disclosure mapping, and review history before drafting the sustainability statement. - [Open Research Copilot](/solutions/research-copilot.md): Check CSRD and ESRS implementation questions against cited source material. - [Discuss CSRD and ESRS implementation](/contact.md): Review scope, IRO evidence, value-chain assumptions, and ESRS disclosure mapping with Sorena. ## Assess impact materiality separately from financial materiality Impact materiality asks whether the undertaking has or could have material positive or negative impacts on people or the environment. The assessment should cover own operations and upstream and downstream value-chain impacts connected through products, services and business relationships. Financial materiality asks whether a sustainability matter generates risks or opportunities that affect, or could reasonably be expected to affect, financial position, financial performance, cash flows, access to finance or cost of capital over short-, medium- or long-term horizons. The same matter may be material from one perspective without being material from the other. - For negative impact materiality, assess severity using scale, scope and irremediable character; for potential impacts, add likelihood. - For positive impacts, assess scale and scope; for potential positive impacts, add likelihood. - For financial materiality, assess likelihood and potential magnitude of financial effects using qualitative or quantitative thresholds suited to the undertaking. - Keep the impact and financial conclusions distinct, then link them where an impact, dependency or other factor creates a material risk or opportunity. Sources for this answer: - [Commission Delegated Regulation (EU) 2023/2772 adopting ESRS](https://data.europa.eu/eli/reg_del/2023/2772/oj?ref=sorena.io) - Supports the separate ESRS definitions of impact materiality and financial materiality and the rule that either dimension can make a matter material. - [ESRS implementation guidance documents](https://www.efrag.org/en/projects/esrs-implementation-guidance-documents?ref=sorena.io) - EFRAG IG 1 supports using objective criteria, judgement, severity, likelihood, and undertaking-specific thresholds in the materiality assessment. ## Include value-chain IROs where ESRS requires them The materiality assessment should not stop at consolidated entities and direct suppliers. ESRS value-chain coverage includes own operations plus activities, resources and relationships used or relied on from conception to delivery, consumption and end-of-life, including upstream and downstream actors. Value-chain information is not required in every disclosure. It is needed when connected to material IROs beyond own operations and when the relevant disclosure requirement calls for it. If primary information from value-chain actors is not available after reasonable efforts, ESRS implementation guidance supports using reasonable and supportable estimates, proxies, sector data, or other indirect sources, with transparent disclosure of estimation limits where metrics use value-chain estimation. - Mark each IRO as own operations, upstream value chain, downstream value chain, or a mixed relationship. - Identify hotspots by geography, activity, sector, supplier group, customer group, product use, end-of-life stage, financing context, or regulatory environment. - Document whether value-chain data came from direct actor information, audits, grievance channels, scientific evidence, public reports, sector averages, country data, or other proxies. - Explain limitations in the materiality process and in reported metrics when estimates or indirect sources are used. Sources for this answer: - [Commission Delegated Regulation (EU) 2023/2772 adopting ESRS](https://data.europa.eu/eli/reg_del/2023/2772/oj?ref=sorena.io) - Defines value chain and business relationships, including upstream and downstream actors and indirect relationships beyond the first tier. - [ESRS implementation guidance documents](https://www.efrag.org/en/projects/esrs-implementation-guidance-documents?ref=sorena.io) - EFRAG IG 2 supports value-chain implementation, including when value-chain IROs must be considered and how estimates may be used when primary data is unavailable. ## Set thresholds and keep the judgement visible ESRS sets materiality criteria but does not prescribe one universal threshold for all undertakings. The method therefore has to define the qualitative or quantitative thresholds used for impact materiality and financial materiality and explain how judgement was applied when evidence was incomplete or borderline. Thresholds should not hide severe impacts by averaging them into a large group result. Where aggregation would obscure a material impact, risk or opportunity, the assessment should disaggregate by country, significant site, significant asset, subsidiary or another level that faithfully represents the issue. - Record the threshold rule used for each IRO category, including qualitative criteria where numerical measurement is not reasonable. - For impact materiality, retain the severity basis and any likelihood assessment for potential impacts. - For financial materiality, retain the expected financial effect, likelihood, time horizon, affected financial statement area or financing implication, and threshold applied. - Flag any high-severity impacts that need individual treatment rather than aggregation into a group-level average. Sources for this answer: - [ESRS implementation guidance documents](https://www.efrag.org/en/projects/esrs-implementation-guidance-documents?ref=sorena.io) - EFRAG IG 1 supports the use of undertaking-specific qualitative or quantitative thresholds, objective evidence where possible, and disaggregation where aggregation would obscure material information. - [European sustainability reporting standards (ESRS)](https://xbrl.efrag.org/e-esrs/esrs-set1-2023.html?ref=sorena.io) - Supports the ESRS 2 expectation that the undertaking explains the process and criteria used to identify and assess material IROs. ## Document evidence for reporting, governance and assurance EFRAG IG 1 says ESRS does not prescribe a specific documentation format for the materiality assessment, but documentation is reasonable for internal governance, ESRS 2 IRO-1 disclosures and assurance work. The evidence file should make the conclusion reproducible without turning the sustainability statement into a data dump. A useful record links each materiality conclusion to the source evidence, the criteria applied, the responsible reviewer, and the ESRS disclosures affected. It should also preserve non-material conclusions where they explain omitted metrics or topics, especially where climate disclosures are omitted because no material climate IROs were identified. - Keep an IRO register with matter, impact or financial dimension, value-chain location, time horizon, affected stakeholder or user, evidence source, threshold result, and final materiality conclusion. - Keep methodology records for scoring scales, threshold definitions, stakeholder inputs, scientific or market evidence, data-quality limits, and review approvals. - Keep mapping records from material matters to ESRS disclosure requirements, datapoints, omitted metrics, and entity-specific disclosures. - Keep version history showing the ESRS edition used, changes from the prior assessment, new or removed IROs, changed thresholds, remapped disclosure references, and unresolved evidence limitations. - Reassess for each reporting cycle and when acquisitions, disposals, new sites or products, major incidents, value-chain changes, new evidence, or changes in law or strategy could alter an IRO or its score. Sources for this answer: - [ESRS implementation guidance documents](https://www.efrag.org/en/projects/esrs-implementation-guidance-documents?ref=sorena.io) - EFRAG IG 1 supports documenting the materiality assessment for governance, ESRS 2 IRO disclosures, and assurance even though ESRS does not prescribe a specific documentation format. - [European sustainability reporting standards (ESRS)](https://xbrl.efrag.org/e-esrs/esrs-set1-2023.html?ref=sorena.io) - Supports using ESRS 2 IRO-1, SBM-3 and IRO-2 as the disclosure destination for the materiality process, outcomes and covered disclosure requirements. ## Primary sources - [Commission Delegated Regulation (EU) 2023/2772 adopting ESRS](https://data.europa.eu/eli/reg_del/2023/2772/oj?ref=sorena.io) - Primary legal source for ESRS definitions of double materiality, impact materiality, financial materiality, impacts, value chain and business relationships. - Quote: "Double materiality has two dimensions" - [European sustainability reporting standards (ESRS)](https://xbrl.efrag.org/e-esrs/esrs-set1-2023.html?ref=sorena.io) - Public ESRS rendering used for cross-cutting and topical disclosure requirements affected by the materiality assessment. - Quote: "European sustainability reporting standards" - [ESRS implementation guidance documents](https://www.efrag.org/en/projects/esrs-implementation-guidance-documents?ref=sorena.io) - Official EFRAG page for non-authoritative implementation guidance, including IG 1 Materiality Assessment, IG 2 Value Chain, and IG 3 Datapoints. - Quote: "These documents are non-authoritative" - [Commission adopts revised sustainability reporting standards](https://finance.ec.europa.eu/news/commission-adopts-revised-sustainability-reporting-standards-2026-07-03_en?ref=sorena.io) - Current official status of the revised ESRS adopted on 3 July 2026 and awaiting completion of Parliament and Council scrutiny before application. ## Related Topic Guides - [CSRD and ESRS Compliance Obligations](/artifacts/eu/corporate-sustainability-reporting-directive/compliance.md): Practical CSRD and ESRS compliance guide covering scope checks, sustainability statements, double materiality, value-chain data, assurance, and digital-tagging status. - [CSRD and ESRS FAQ: scope, materiality, assurance, tagging, and value chain](/artifacts/eu/corporate-sustainability-reporting-directive/faq.md): CSRD and ESRS FAQ hub covering company scope, reporting waves, ESRS structure, double materiality, assurance, digital tagging, Taxonomy Article 8, and value chain data. - [CSRD and ESRS Reporting Checklist](/artifacts/eu/corporate-sustainability-reporting-directive/checklist.md): A practical CSRD and ESRS checklist for confirming reporting scope, sustainability statement content, double materiality, value-chain evidence, assurance readiness, and digital tagging. - [CSRD and ESRS requirements: scope, reporting, assurance, and evidence](/artifacts/eu/corporate-sustainability-reporting-directive/requirements.md): Practical guide to CSRD and ESRS requirements: who reports, what the sustainability statement must cover, double materiality, value-chain data, assurance, publication, digital-tagging status, and controls. - [CSRD and ESRS value-chain data, estimates, proxies, and evidence](/artifacts/eu/corporate-sustainability-reporting-directive/value-chain-data-and-estimation.md): How to handle ESRS value-chain information when supplier or customer data is incomplete: reasonable efforts, estimates, limitations, controls, and assurance evidence. - [CSRD Applicability Test for EU and Non-EU Company Groups](/artifacts/eu/corporate-sustainability-reporting-directive/applicability-test.md): Check whether CSRD and ESRS reporting may apply by testing undertaking size, listed status, group reporting, non-EU branches or subsidiaries, and phase-in evidence. - [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. - [CSRD assurance and ESRS digital tagging evidence](/artifacts/eu/corporate-sustainability-reporting-directive/assurance-and-digital-tagging-evidence.md): Evidence checklist for CSRD assurance readiness, ESRS datapoint traceability, and digital tagging preparation under the ESRS XBRL and ESEF reporting framework. - [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. - 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