Double Materiality Assessment

How to complete your ESRS double materiality assessment in Matproof.

What is double materiality?

CSRD requires a double materiality assessment (DMA) — the process of identifying which sustainability topics are material from two perspectives:

1. Impact materiality — How does your company affect people and the environment? (e.g., your Scope 1/2/3 emissions, labor practices in your supply chain)
2. Financial materiality — How do sustainability topics affect your company’s financial performance? (e.g., climate risks to your assets, regulatory costs)

A topic is material if it meets either threshold — you only need to report on material topics.

Running a DMA in Matproof

Step 1: Stakeholder input

Navigate to CSRD → Double Materiality → Stakeholder Survey.

Invite internal and external stakeholders to rate sustainability topics by:

• Severity of impact (scale, scope, irremediability)
• Likelihood of occurrence
• Financial significance

Matproof sends a survey link and aggregates responses automatically.

Step 2: IRO identification

IROs = Impacts, Risks, and Opportunities.

For each ESRS topic, Matproof helps you identify and document:

• Impacts — actual or potential effects on people/environment
• Risks — sustainability-related financial risks
• Opportunities — positive financial effects from sustainability actions

Use the IRO matrix in the platform to rate severity and likelihood.

Step 3: Materiality scoring

Matproof calculates a materiality score for each topic based on:

Impact materiality = Severity × Likelihood
Financial materiality = Magnitude × Likelihood × Time horizon

Topics scoring above your threshold are marked material.

Step 4: Materiality statement

Once complete, export your materiality statement — a required disclosure for CSRD reporters explaining your assessment process and conclusions.

Which ESRS topics to assess

You must assess all ESRS topics:

Topic	Standard
Climate change	E1
Pollution	E2
Water and marine resources	E3
Biodiversity and ecosystems	E4
Resource use and circular economy	E5
Own workforce	S1
Workers in value chain	S2
Affected communities	S3
Consumers and end-users	S4
Business conduct	G1

Tips

For your first DMA, focus on getting stakeholder input from at least 3-5 internal functions (finance, operations, procurement, legal) plus 2-3 external stakeholders (major customers, suppliers, or NGOs).

The DMA must be reviewed annually. Material topics can change as your business and external environment evolve.