The Double Materiality Assessment platform.

A double materiality assessment is a strategic evaluation process used by companies to identify which sustainability topics are most critical to their business. It is a mandatory requirement under the CSRD and serves as the foundation for modern ESG reporting.

Double materiality is an ESG concept that requires a company to look at its sustainability impact from two perspectives: how the company’s operations impact people and the environment (Impact Materiality), and how external sustainability matters affect the company’s financial development, performance, and position (Financial Materiality).

The two dimensions are Impact Materiality (the “inside-out” perspective, measuring your business’s effect on the world) and Financial Materiality (the “outside-in” perspective, measuring how external ESG factors like climate change create financial risks or opportunities for your business).

To conduct a double materiality assessment, a company must follow a structured, evidence-based process:

• Map the value chain and define the assessment scope.
• Identify a longlist of potential impacts, risks, and opportunities (IROs) based on sector and framework guidelines.
• Engage stakeholders (employees, suppliers, customers, and investors) to gather varied perspectives.
• Score the severity of impacts (scale, scope, remediability) and the magnitude/likelihood of financial risks.
• Determine final materiality thresholds and generate a verified report for auditors.

Double materiality is important because it prevents “greenwashing” by forcing companies to disclose both the harm they might be doing to the environment and the financial risks they face from neglecting sustainability. It provides a transparent, holistic view of a company’s true resilience and impact for investors, regulators, and the public.

Currently, any company mandated to report under the EU’s Corporate Sustainability Reporting Directive (CSRD) needs a double materiality assessment. This includes large EU companies, listed SMEs in the EU, and certain large non-EU enterprises with significant operations inside the European market.

While a full, ground-up assessment is typically conducted every 2 to 3 years, best practices and regulatory expectations require companies to review and update their double materiality assessment annually. This ensures that any new stakeholder feedback, emerging regulations, or shifts in the business model are accurately reflected in the yearly reporting cycle.

The platform is aligned to ESRS 1 AR 16 (sustainability matters taxonomy), ESRS 1 Chapter 3 (double materiality) and EFRAG IG 1 (materiality assessment implementation guidance). Scoring logic and disclosure requirements follow the Simplified ESRS as amended by Directive (EU) 2026/47. Voluntary VSME reporting is supported for SMEs outside mandatory CSRD scope.

Under the Corporate Sustainability Reporting Directive, double materiality is the test that decides which sustainability matters an undertaking must disclose. A topic clears the bar if it’s material from an impact perspective, a financial perspective, or both — there’s no single blended score. See how the DMA shapes CSRD disclosures for the full mechanics.

Every sustainability matter is scored twice: once for how the undertaking affects people and the environment (impact materiality), and once for how the matter could affect the undertaking’s own financial position (financial materiality). Each score runs across own operations, upstream and downstream, and across short, medium and long-term horizons. A topic becomes material — and reportable — the moment either score crosses the threshold.

Impact materiality is the “inside-out” half of double materiality: the actual or potential effect an undertaking’s operations, products and services have on people and the environment, regardless of whether that effect ever shows up on the balance sheet. Negative impacts are scored on scale, scope and remediability; positive impacts on scale and scope.

Financial materiality is the “outside-in” half of double materiality: whether a sustainability matter could reasonably affect the undertaking’s development, performance, position, cost of capital or access to finance. It’s scored on magnitude and likelihood, and — unlike impact materiality — it’s the dimension most other ESG frameworks, including ISSB and TCFD, are built around exclusively.

ISSB standards (IFRS S1 and S2, which absorbed TCFD) apply financial materiality only — they ask whether a sustainability matter affects enterprise value, not whether the company affects the world. ESRS double materiality asks both questions. EFRAG and the ISSB have confirmed the two financial-materiality tests are conceptually equivalent, so an ESRS-aligned assessment also satisfies the financial-materiality half of an ISSB-referencing regime; the reverse isn’t true.

A manufacturer’s water use is a useful example: it’s impact-material if withdrawal depletes a supply the local community depends on, and financially material if drought risk threatens production continuity or drives up input costs — often both at once. Workforce conditions in a supply chain work the same way: impact-material as a human-rights exposure, financially material where it creates recall, reputational or continuity risk.

Yes, and increasingly they need to. Most SMEs fall outside mandatory CSRD scope, but many are asked by in-scope customers or lenders for sustainability data under the Voluntary SME Standard (VSME), which includes a simplified materiality assessment. The platform supports both the full ESRS-scale DMA and the lighter VSME path — see the SME path for the proportionate version.

Beyond the full assessment platform, standalone utilities can speed up specific steps — a scoping checker to confirm CSRD applicability, an IRO classifier to sort a longlist against the ESRS 1 AR 16 taxonomy, and a materiality matrix builder for board-ready output. See the free tools below.

The full DMA platform is free forever — all ten ESRS topics, all three value-chain dimensions, all three time horizons, evidence library, auditor role, report generation and verification workflow. No feature limits, no per-seat fees, no trial expiry.

Paid implementation support is an optional add-on for organisations that want expert-led scoping, audit-committee briefing packs or team training — priced per engagement, not per subscription.

Impact materiality captures the effect your undertaking has on people and environment, scored on scale, scope and remediability (for negative impacts) or scale and scope (for positive). Financial materiality captures sustainability-related matters that could materially affect financial position, performance or cash flows, scored on magnitude and likelihood.

A topic is material if either dimension is material — the platform runs both assessments in parallel, for every topic, across own operations, upstream and downstream, across three time horizons.

Yes. The platform has a dedicated auditor role with comment threads, version history and a submit-for-verification workflow. Auditors can review evidence, flag items for revision and sign off sections directly in the platform. A full change log is maintained for assurance purposes.

The platform includes a binary voting workflow for three primary stakeholder groups: Customers, Suppliers and Employees. Each group votes material / no-material per topic per value-chain segment. Results are aggregated, weighted and surfaced alongside your own assessment in the Engage stakeholders view for triangulation.

For more structured engagement (workshops, structured interviews), our Implementation Support add-on includes engagement design.

Same platform, same features, same free tier regardless of entry point. Choose the channel closest to your existing workflows — GIG direct for the fastest path, OpenES if you already use that marketplace for sustainability tooling, Azimut for asset managers and fund strategies already on the Azimut sustainable finance platform.

Yes. Every assessment can be exported in full — including IRO library, scoring, stakeholder votes, evidence references and report drafts — in standard formats (JSON, CSV, PDF). No data lock-in, no paywall on export.