Double materiality

What it is

Double materiality is the assessment approach that the Corporate Sustainability Reporting Directive (CSRD) requires under the European Sustainability Reporting Standards (ESRS). 'Single materiality' — the older approach — only asked: which sustainability topics financially affect the company? Double materiality adds the inverse: which sustainability topics is the company affecting in the world? A topic is material — and therefore in scope for disclosure — if it scores high on either axis.

Why it matters

Most ESG/sustainability frameworks before CSRD let companies focus on financial materiality alone. CSRD changed that. A topic with low financial impact but high impact on people or the environment — say, a manufacturing process with limited cost exposure but real downstream pollution — is now material and disclosable. The practical effect: the assessment requires data the financial reporting function doesn't have, and the disclosure process draws in HR, operations, supplier management, and environmental teams. The materiality matrix is the artefact that decides who has to produce what.

How Norrsent handles it

Norrsent's CSRD module produces the double materiality matrix as a queryable record, not a static spreadsheet. Each topic is plotted by financial impact and by impact on people and environment, with the underlying data lineage — who produced the figure, from which system, signed when. When the assurance provider asks how a topic landed in the material zone, the answer traces through the platform in seconds, not weeks.

Common questions

Who decides what's material?

The company does, but the methodology is defined under ESRS 1. Double materiality requires structured input from internal stakeholders, external stakeholders, and value chain participants. The output is auditable; assurance providers test the methodology and the inputs, not just the output.

Does cycle two have the same threshold as cycle one?

The methodology is the same, but assurance providers raise the bar. Cycle one is forgiving — limited assurance, methodology under construction. Cycle two assumes you've learned and can show the work. Companies that produced one-off materiality assessments in cycle one find themselves rebuilding from scratch.

Can the matrix be a static deliverable?

Yes for the disclosure, no for the underlying record. The disclosure is a moment-in-time artefact. The materiality assessment behind it is a living record that updates as operations, suppliers, and stakeholder positions change. ESRS expects you to be able to evidence what was material at the moment of disclosure — which means the underlying record needs version history, not just the final PDF.