EU CSRD implementation & double materiality KPIs by sector (with ranges)

The EU Corporate Sustainability Reporting Directive (CSRD) will bring an estimated 50,000 companies into mandatory sustainability disclosure by 2028, yet early adopter surveys indicate that fewer than 30% of in-scope companies have completed a double materiality assessment that meets European Sustainability Reporting Standards (ESRS) requirements. The KPIs organizations choose to track during implementation will determine whether CSRD becomes a compliance exercise or a catalyst for strategic sustainability integration.

Why It Matters

CSRD replaces the Non-Financial Reporting Directive (NFRD) and represents the most ambitious corporate sustainability disclosure regime globally. It requires companies to report under ESRS across environmental, social, and governance topics, but only after conducting a double materiality assessment that identifies which topics are material from both an impact perspective (how the company affects people and the environment) and a financial perspective (how sustainability issues create risks and opportunities for the company). This dual lens is what distinguishes CSRD from frameworks like ISSB, which focus primarily on financial materiality.

For compliance teams, the challenge is operational: mapping value chains, engaging stakeholders, assessing impacts and dependencies, and building data infrastructure that satisfies assurance requirements. For executives, the challenge is strategic: double materiality outputs directly shape which ESRS disclosure requirements apply, which datapoints must be reported, and how much resources to allocate across reporting topics. Companies that treat the materiality assessment as a box-ticking exercise risk both regulatory penalties and missed insights into where sustainability creates or destroys enterprise value.

The implementation timeline adds urgency. Large listed companies (wave one) began reporting on 2024 fiscal years. Large non-listed companies (wave two) report on 2025 fiscal years. Listed SMEs (wave three) start reporting on 2026 fiscal years, with a possible opt-out until 2028. Each wave brings companies with progressively less reporting infrastructure and fewer internal resources.

Key Concepts

Double materiality requires companies to evaluate sustainability topics through two lenses simultaneously. Impact materiality asks whether the company has actual or potential positive or negative impacts on people or the environment. Financial materiality asks whether sustainability matters create risks or opportunities that could reasonably influence the company's cash flows, development, performance, or position. A topic is material if it meets either threshold, and it need not meet both.

European Sustainability Reporting Standards (ESRS) are the detailed disclosure standards underpinning CSRD. ESRS 1 and ESRS 2 are cross-cutting standards applicable to all companies. Ten topical standards cover 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 the value chain (S2), affected communities (S3), consumers and end-users (S4), and business conduct (G1). Companies disclose against topical standards only where the double materiality assessment determines the topic is material.

Value chain mapping is a prerequisite for credible double materiality assessment. ESRS requires companies to consider impacts, risks, and opportunities across the upstream supply chain, own operations, and downstream use and end-of-life. The depth and granularity of value chain data directly affects the quality of materiality conclusions.

Limited assurance is required for CSRD reports from the outset, with a transition to reasonable assurance expected by 2028. Assurance providers must verify both the process (was the double materiality assessment conducted properly) and the outputs (are reported datapoints accurate and complete).

KPI Benchmarks by Sector

KPI	Sector	Low Range	Median	High Range	Unit
Double materiality assessment completion	Financial services	45%	62%	80%	% of in-scope entities
Double materiality assessment completion	Manufacturing	25%	40%	60%	% of in-scope entities
Double materiality assessment completion	Retail/consumer	20%	35%	55%	% of in-scope entities
ESRS datapoints reported	Large listed (wave 1)	400	650	900	datapoints per report
ESRS datapoints reported	Large non-listed (wave 2)	200	400	650	datapoints per report
Stakeholder groups consulted	Cross-sector	4	7	12	groups per assessment
Value chain tiers mapped	Manufacturing	1	2	4	tiers upstream
Value chain tiers mapped	Financial services	1	2	3	tiers (portfolio)
Internal FTE dedicated to CSRD	Large companies (>10,000 employees)	3	6	12	FTE
Internal FTE dedicated to CSRD	Mid-size companies (1,000-10,000)	1	3	5	FTE
Implementation cost (first year)	Large listed	250,000	500,000	1,200,000	EUR
Implementation cost (first year)	Large non-listed	100,000	300,000	700,000	EUR
Time to complete DMA	Cross-sector	3	6	12	months
Topics assessed as material	Manufacturing	5	8	12	ESRS topics
Topics assessed as material	Financial services	4	7	10	ESRS topics
Data gap closure rate	Wave 1 reporters	40%	60%	85%	% of required datapoints

What's Working

Structured materiality frameworks reducing subjectivity. Companies using systematic scoring methodologies for double materiality are producing more defensible and consistent results than those relying on workshop-based qualitative assessments alone. Siemens developed a quantitative scoring matrix combining impact severity, likelihood, and remediability with financial magnitude and probability across all ESRS topics, applied consistently across its 300+ operating entities. The approach enabled Siemens to narrow its material topics from an initial long list of all 10 topical standards to 7 that met thresholds, with documented rationale for each inclusion and exclusion. Holcim adopted a similar framework calibrated to its cement and building materials operations, mapping financial materiality through commodity price sensitivity analysis and physical climate risk modeling rather than relying solely on peer benchmarking.

Technology platforms accelerating data collection. Software providers have built CSRD-specific modules that map ESRS datapoints to existing data sources, identify gaps, and automate collection workflows. Workiva reported that early CSRD adopters using its platform reduced data collection time by 35-45% compared to spreadsheet-based approaches. Wolters Kluwer's CCH Tagetik platform provides ESRS taxonomy mapping with pre-built data models covering all mandatory and voluntary datapoints. Sphera and Persefoni have integrated double materiality assessment tools that combine stakeholder survey modules with quantitative impact scoring. Companies using these platforms report median time-to-first-draft reductions of 40% and significant improvements in audit trail documentation.

Cross-functional governance models improving data quality. Organizations that established dedicated CSRD steering committees with representation from finance, sustainability, legal, operations, and investor relations are producing higher-quality reports than those delegating the effort solely to sustainability teams. Unilever embedded CSRD reporting responsibility within its existing financial reporting governance structure, applying the same internal controls framework to sustainability datapoints as to financial data. Deutsche Bank created a cross-functional CSRD taskforce reporting directly to the CFO, which enabled it to integrate double materiality outputs into its existing risk management taxonomy. This governance approach reduced inconsistencies between sustainability and financial disclosures and increased board-level engagement with materiality conclusions.

What's Not Working

Value chain data remains the primary bottleneck. ESRS requires consideration of impacts, risks, and opportunities across the full value chain, but most companies lack visibility beyond tier-one suppliers. A 2025 survey by the European Financial Reporting Advisory Group (EFRAG) found that 65% of wave-one reporters cited value chain data as their most significant implementation challenge. Manufacturing companies with complex multi-tier supply chains face particular difficulty: mapping Scope 3 emissions, labor practices, and biodiversity impacts across suppliers in jurisdictions with limited disclosure norms produces materiality assessments based heavily on estimates and sector averages rather than entity-specific data. The gap between ESRS ambitions for value chain coverage and actual data availability creates assurance risks that early reporters are managing through extensive use of proxies and assumptions, with disclosure of estimation methodologies.

Inconsistent materiality thresholds across companies. ESRS provides qualitative guidance on materiality determination but does not prescribe quantitative thresholds for when a topic crosses from non-material to material. This design choice, intended to allow company-specific judgment, has produced significant variation in outcomes. Two companies in the same sector with similar operations may reach different materiality conclusions depending on threshold calibration, stakeholder weighting, and assessment methodology. EFRAG's implementation guidance (IG1-3) has helped, but auditors report ongoing challenges in evaluating whether companies have set thresholds that appropriately capture material topics versus thresholds calibrated to minimize reporting burden. The lack of sector-specific materiality benchmarks means comparability across reports remains limited.

SME readiness gaps threaten wave-three implementation. Listed SMEs entering scope in 2026-2028 face a fundamentally different resource equation than large companies. Simplified ESRS for SMEs (LSME standards) reduce the number of mandatory datapoints, but still require a double materiality assessment, stakeholder engagement, and data collection across material topics. A 2025 survey by the Federation of European Accountants (Accountancy Europe) found that 70% of listed SMEs had not begun CSRD preparation, and 45% were unaware of the specific requirements applicable to them. The advisory and assurance capacity to serve this wave is also constrained: the Big Four and mid-tier audit firms have prioritized large-company engagements, leaving SMEs dependent on smaller providers with variable ESRS expertise.

Key Players

Established Leaders

• EFRAG (European Financial Reporting Advisory Group): Technical body that developed the ESRS standards and continues to issue implementation guidance, Q&A documents, and sector-specific exposure drafts.
• Siemens: Early CSRD adopter that published one of the first fully ESRS-aligned reports for its 2024 fiscal year, providing a benchmark for industrial conglomerates.
• Holcim: Building materials company whose 2024 CSRD report integrated double materiality with existing TCFD and TNFD disclosures, setting a template for carbon-intensive sectors.
• Deloitte: Leading audit and advisory firm that has trained over 5,000 professionals on ESRS assurance and published widely referenced CSRD implementation guides.

Emerging Startups

• Workiva: Cloud-based reporting platform with ESRS-specific modules covering data collection, XBRL tagging, and audit trail management across all ESRS datapoints.
• Persefoni: Carbon accounting platform that expanded into CSRD compliance with integrated double materiality assessment and ESRS E1 climate disclosure automation.
• Datamaran: AI-powered materiality assessment platform that analyzes regulatory, media, and company data to support double materiality scoring with quantitative evidence trails.
• Novata: ESG data management platform focused on private markets, helping private equity portfolio companies prepare for CSRD scope expansion.

Key Investors and Funders

• European Commission: Funds CSRD implementation support through the European Financial Reporting Advisory Group and member-state transposition assistance programs.
• Euronext: Major European stock exchange group actively supporting listed companies with CSRD implementation guidance and investor engagement on double materiality outputs.
• Norges Bank Investment Management: World's largest sovereign wealth fund, publicly advocating for high-quality CSRD implementation and using double materiality outputs in investment stewardship.

Action Checklist

1. Conduct a gap analysis mapping current sustainability reporting against all ESRS cross-cutting and topical standard requirements to identify data and process shortfalls.
2. Establish a cross-functional CSRD steering committee with representation from finance, sustainability, legal, risk, and operations, reporting to CFO or board-level sponsor.
3. Complete a double materiality assessment using a documented methodology with clear scoring criteria, defined thresholds, and stakeholder engagement records sufficient for assurance review.
4. Map value chain impacts, risks, and opportunities at minimum to tier-one suppliers and key downstream channels, documenting estimation approaches where entity-specific data is unavailable.
5. Select and implement an ESRS-capable reporting platform that supports datapoint-level mapping, XBRL taxonomy tagging, and internal controls documentation.
6. Engage your assurance provider early to align on materiality assessment methodology, data quality expectations, and audit trail requirements before the first reporting deadline.
7. Build internal capacity through ESRS training programs for data owners across business units, targeting at minimum all personnel responsible for contributing mandatory datapoints.

FAQ

How does double materiality differ from single materiality? Single materiality, as used by ISSB (IFRS S1 and S2), focuses on sustainability issues that could reasonably be expected to affect a company's financial position, performance, or prospects. Double materiality adds the impact dimension: whether the company's activities have significant positive or negative effects on people and the environment, regardless of whether those impacts create financial risks. Under CSRD, a topic is material if it meets either the financial or the impact materiality threshold, broadening the scope of required disclosures compared to single-materiality frameworks.

Which ESRS topics are most commonly assessed as material? Based on early wave-one reports, climate change (E1), own workforce (S1), and business conduct (G1) are assessed as material by over 90% of reporting companies. Pollution (E2) and resource use and circular economy (E5) are material for 60-75% of manufacturing and industrial companies. Biodiversity (E4) varies significantly by sector: material for 80%+ of extractives and agriculture companies but under 30% for financial services and technology firms. Workers in the value chain (S2) is increasingly assessed as material as companies deepen value chain mapping.

What does limited assurance mean for CSRD reports? Limited assurance provides a moderate level of confidence that the reported information is free from material misstatement. The assurance provider performs inquiry and analytical procedures but does not conduct the detailed testing required for reasonable assurance. In practice, limited assurance for CSRD covers both the double materiality assessment process and the accuracy of reported datapoints. Companies should expect assurance providers to review materiality assessment documentation, test data collection controls, and verify a sample of quantitative disclosures. Transition to reasonable assurance is anticipated around 2028-2030.

How much does CSRD implementation cost? First-year implementation costs vary significantly by company size and reporting maturity. Large listed companies with existing sustainability reporting infrastructure report costs of EUR 250,000-1,200,000, including advisory fees, technology platforms, and internal resource allocation. Large non-listed companies entering scope for the first time report EUR 100,000-700,000. Ongoing annual reporting costs typically decrease by 30-50% after the first year as processes mature and data collection becomes routine. The largest cost drivers are value chain data collection, technology platform implementation, and external advisory support for double materiality assessment.

Can companies opt out of reporting on certain ESRS topics? Yes, but only through the double materiality assessment. If a company determines through a documented and rigorous assessment process that a topical ESRS standard is not material from either an impact or financial perspective, it may omit disclosures under that standard. However, the company must disclose which topics it has assessed as not material and provide a brief explanation of the conclusion. ESRS 2 cross-cutting disclosures and certain governance-related datapoints are mandatory regardless of the materiality assessment outcome. Assurance providers will scrutinize exclusion rationale, particularly for topics commonly assessed as material within the company's sector.

Sources

1. European Financial Reporting Advisory Group. "ESRS Implementation Guidance: Double Materiality Assessment." EFRAG, 2025.
2. European Commission. "Corporate Sustainability Reporting Directive: Transposition Status and Implementation Update." EC, 2025.
3. Accountancy Europe. "CSRD Readiness Survey: Listed SMEs Preparedness Assessment." Federation of European Accountants, 2025.
4. Deloitte. "CSRD and ESRS: A Practical Guide for First-Time Reporters." Deloitte, 2025.
5. Workiva. "State of CSRD Implementation: Insights from Early Adopters." Workiva, 2025.
6. Global Reporting Initiative. "Interoperability Between GRI Standards and ESRS." GRI, 2025.
7. PwC. "Double Materiality in Practice: Lessons from Wave-One CSRD Reporters." PricewaterhouseCoopers, 2025.