ESG Double Materiality Matrix Builder

The CSRD’s double materiality is the gate that decides which sustainability topics you must report on. This builder turns your two-axis scores — financial materiality and impact materiality — into a clear matrix that classifies every topic, so your reporting scope is defensible and easy to document.

How it works

Each topic is scored 0–10 on two independent axes and compared to a threshold:

financial materiality  = effect of the topic on company value / risk / cash flow
impact materiality      = the company's effect on people & environment via the topic
material if  (financial ≥ threshold)  OR  (impact ≥ threshold)

That gives four quadrants:

both ≥ threshold              → Double material (highest priority)
financial only ≥ threshold    → Financially material
impact only ≥ threshold       → Impact material
neither ≥ threshold           → Immaterial (out of scope)

The “OR” logic is everything

The critical feature of CSRD double materiality is the OR: a topic is in scope if it crosses the threshold on either axis, not both. This is a deliberate departure from the older GRI and IFRS S1/S2 approaches:

• IFRS S1/S2 (financial materiality only): a topic is material if it affects the company’s financial position, performance, or outlook. Climate risk that affects your cost of capital is in; the emissions you cause that harm communities are out unless they create financial exposure.
• CSRD/ESRS (double materiality): the same emissions that harm communities are material under the impact axis regardless of your current financial exposure to them. A chemical company with low transition risk but serious water-contamination impacts must still report the impact.

This means that CSRD-required ESRS disclosures will almost always be broader in scope than IFRS S reporting.

Scoring guidance for each axis

Financial materiality

Consider the topic’s potential to affect the company’s:

• Revenue (loss of market access, customer churn, stranded assets)
• Costs (carbon pricing, resource scarcity, regulatory fines)
• Access to capital (investor requirements, loan covenant triggers)
• Reputation and brand value
• Supply chain stability

Score higher if the effect is severe, likely to materialise, and imminent. Score lower if the effect is uncertain, minor, or very long-dated.

Impact materiality

Under ESRS, consider:

• Actual impacts — harms or benefits already occurring (current supply chain labour conditions, current GHG emissions)
• Potential impacts — foreseeable but not yet realised (planned facility expansion near a waterway, future product end-of-life)
• Scope — your own operations and your upstream and downstream value chain
• Severity — scale (how many people/ecosystems affected), scope, and irreversibility
• Likelihood for potential impacts

Score higher if the impact is severe, widespread, and irreversible. Score lower if it is minor, localised, and easily reversible.

Setting and defending your threshold

There is no legally mandated numeric threshold in the CSRD or ESRS. Companies have flexibility, but the choice must be:

• Documented — record why you chose that threshold, what evidence informed it, and who was involved in the decision.
• Consistent — the same threshold applies across all topics assessed in this materiality cycle.
• Justified — be prepared to explain to assurance providers, auditors, or investors why a topic scoring 4.8 is immaterial when the threshold is 5.0.

A common starting point is the midpoint of the scale (5 out of 10). Run a sensitivity analysis by shifting the threshold up and down by one point and identifying which borderline topics flip — this documents robustness and is exactly what assurance providers ask for.

Practical tips

• Conduct this assessment before deciding which ESRS standards to apply. Topics scored as material determine your disclosure obligations under the corresponding ESRS (e.g. climate → ESRS E1, own workforce → ESRS S1).
• Engage stakeholders in the scoring process — ESRS requires evidence of stakeholder engagement, and input from suppliers, affected communities, and employees strengthens the scores’ credibility.
• Reassess at least annually, since a topic that is immaterial today may become material as regulation, market conditions, or company activities change.