Double materiality, the pivot of the CSRD
Two axes that determine which ESRS standards apply to your company

Double materiality is the central principle of the CSRD. Each topical standard (E1 to E5, S1 to S4, G1) is mandatory only if it is material under one of the two axes: impact materiality (the company's effects on the environment and society) and financial materiality (the effects of sustainability issues on the company's financial value). The assessment is documented, argued, approved by governance and verifiable by the auditor. It is what turns CSRD reporting from formal to defensible.

Scope a double-materiality assessment Back to the CSRD hub

The two axes

Impact materiality and financial materiality.

Impact materiality (inside-out)

How the company affects the environment and society, actual and potential, positive and negative impacts across its own operations and value chain. A topic is impact-material if these effects are significant, regardless of any financial consequence.

Financial materiality (outside-in)

How sustainability issues create risks and opportunities that affect the company's development, performance, position, cash flows or access to finance. A topic is financially material even if the company has no significant impact on it.

A topic material under either axis triggers the corresponding ESRS disclosure requirements. The assessment therefore determines the exact reporting scope, no more, no less.

Method

From IROs to the applicable ESRS.

Step 1

Identify IROs

Map the Impacts, Risks and Opportunities across own operations and the value chain, against the ESRS topics.

Step 2

Assess & consult

Score severity/likelihood (impact) and magnitude (financial), with stakeholder consultation to substantiate the thresholds.

Step 3

Matrix & scope

Build the materiality matrix, have governance approve it, and derive the list of applicable ESRS and datapoints.

FAQ

Frequently asked questions

Because it determines the reporting scope. Only topics material under impact or financial materiality trigger ESRS disclosure requirements. A weak or undocumented assessment exposes the company to under-reporting (non-compliance) or over-reporting (wasted effort), and is the first thing the auditor challenges.

Impact materiality looks inside-out (how the company affects the world); financial materiality looks outside-in (how sustainability issues affect the company's value). CSRD requires both, a topic material under either axis is in scope.

By producing the technical, auditable data that underpins the biodiversity and climate topics (ESRS E4, E1) and by structuring the IRO analysis, stakeholder consultation and materiality matrix so the result is defensible before the auditor.

Scope a double-materiality assessment

Structured IRO analysis, stakeholder consultation and a governance-approved materiality matrix, with the auditable environmental data behind the climate and biodiversity topics.

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Double materiality, the pivot of the CSRD Two axes that determine which ESRS standards apply to your company