What is the difference between the CSRD and GRI?

The CSRD is an EU law that requires in-scope companies to report under the European Sustainability Reporting Standards (ESRS), while GRI is a voluntary set of reporting standards any organization can use. The CSRD requires double materiality, third-party assurance and, once EU tagging rules are adopted, digital tagging; GRI uses impact materiality only and leaves assurance optional.

Can a company report under both the CSRD and GRI?

Yes, a company can report under both the CSRD and GRI, and GRI reporters have a head start. GRI worked with EFRAG on the ESRS, so many ESRS requirements have direct GRI counterparts. A common approach is to make ESRS disclosures the primary report and publish a GRI Content Index that cross-references them.

CSRD vs GRI: Key Differences Explained

Q: Should a company report under the CSRD or GRI?

The CSRD is not optional: companies that meet its thresholds must report under it, and after the EU's Omnibus I directive those are more than 1,000 employees and more than €450 million in net turnover. GRI suits organizations outside that scope that want to report on their impacts, and CSRD reporters with stakeholders outside the EU.

Status, September 2026: The EU's Omnibus I directive (in force March 18, 2026) narrows the CSRD to companies with more than 1,000 employees and more than €450 million in net turnover. The amendments apply from financial year 2027, with first reports in 2028, and member states must transpose them by March 2027. Source: Council of the EU.

Quick Comparison

	CSRD	GRI
Scope	EU directive mandating sustainability reporting under ESRS	Global voluntary framework for sustainability impact reporting
Applicability	Companies with more than 1,000 employees and €450M+ net turnover (after Omnibus I)	Any organization worldwide
Required/Voluntary	Mandatory EU law	Voluntary
Geography	European Union (with extraterritorial reach)	Global
Key Focus	Double materiality with legally binding disclosure requirements	Impact materiality with flexible disclosure approach
Assurance	Mandatory limited assurance	Encouraged but not required

What is the CSRD?

The Corporate Sustainability Reporting Directive is the EU's legislative framework mandating comprehensive sustainability disclosure. Adopted in November 2022 and entering force in January 2023, the CSRD replaces the 2014 Non-Financial Reporting Directive and expands the topics companies must cover and the rigor expected. It was also set to greatly widen the universe of companies required to report, but the Omnibus I directive of 2026 narrowed that scope.

The CSRD itself is the directive — the law that establishes the obligation to report. The content of what companies report is defined by the European Sustainability Reporting Standards (ESRS), developed by EFRAG. The CSRD also establishes the assurance requirement, the digital format mandate, and the phased implementation timeline.

Large public-interest entities with more than 500 employees (already under NFRD) started with fiscal year 2024. A 2025 "stop-the-clock" directive postponed the later waves, and Omnibus I then reset them: other companies with more than 1,000 employees and more than €450 million in net turnover start with fiscal year 2027 (reporting in 2028), listed SMEs are no longer in scope, and non-EU groups with more than €450 million in EU net turnover and an EU subsidiary or branch above €200 million start with fiscal year 2028. First-wave companies below the new thresholds drop out from fiscal year 2027. The extraterritorial scope means non-EU companies with significant EU revenue must also comply.

What is GRI?

The Global Reporting Initiative provides the most widely adopted voluntary sustainability reporting standards globally. Founded in 1997, GRI offers a structured approach for organizations of any size and sector to report on their impacts on the economy, environment, and people. The framework uses impact materiality — organizations determine which topics to report on based on the significance of their outward effects.

GRI's modular system includes Universal Standards (GRI 1, 2, 3) and Topic Standards covering economic, environmental, and social subjects. Organizations conduct a materiality assessment, select applicable Topic Standards, and disclose against the specified requirements. The framework is flexible: organizations can report "in accordance" with GRI (meeting all Universal Standard requirements and all applicable Topic Standards) or "with reference to" GRI (using selected standards).

GRI collaborated extensively with EFRAG on ESRS development, and the resulting interoperability between GRI and ESRS is by design. Many ESRS disclosure requirements have direct GRI counterparts.

Key Differences

1. Legal Nature

The CSRD is EU legislation — a directive transposed into national law by each member state. Non-compliance has legal consequences including penalties set by member states. GRI is a voluntary framework with no legal enforcement mechanism. An organization choosing not to report under GRI faces no regulatory consequence; a CSRD-subject entity that fails to report faces fines and potential liability.

2. Directive vs Standards

The CSRD and GRI are different things. The CSRD is a directive (the legal requirement to report); ESRS are the standards (what to report). GRI is only standards (what to report). The more precise comparison is ESRS vs GRI, which addresses the content and methodology differences. The CSRD adds the legal enforcement layer, assurance mandate, digital format requirements, and scope definitions that sit above the reporting content.

3. Company Scope

GRI is available to any organization that chooses to use it. The CSRD applies to specific categories of companies based on defined thresholds — after Omnibus I, companies with more than 1,000 employees and more than €450 million in net turnover, and non-EU groups with more than €450 million in EU net turnover and an EU subsidiary or branch above €200 million. As adopted in 2022, the CSRD was expected to capture about 50,000 companies, compared to approximately 11,700 under the predecessor NFRD; Omnibus I cuts the number in scope by around 90%.

4. Double Materiality

The CSRD mandates double materiality through the ESRS — companies must assess and report from both impact and financial materiality perspectives. GRI uses impact materiality only. The addition of financial materiality under CSRD means companies must evaluate how sustainability issues affect their financial position, not just how their operations affect people and the environment.

5. Assurance and Data Quality

The CSRD requires third-party assurance of sustainability reporting from the first reporting year — limited assurance, since Omnibus I dropped the planned move to reasonable assurance. This elevates the standard for data collection, internal controls, and documentation. GRI encourages assurance but leaves it to the reporting organization's discretion. The mandatory assurance requirement is one of the CSRD's most operationally demanding provisions.

6. Digital Reporting

CSRD reports must be prepared in XHTML format, and sustainability information must be tagged with the ESRS XBRL taxonomy once the Commission adopts tagging rules, enabling automated data extraction and analysis by regulators, investors, and the European Single Access Point (ESAP). GRI has no digital format requirements — organizations publish in whatever format they choose.

7. Management Report Integration

The CSRD requires sustainability information to be included in the company's management report, placing it alongside financial information in the same annual report. GRI reports can be standalone documents, sections of annual reports, or web-based disclosures — the framework is agnostic about placement.

Which One Do You Need?

The CSRD applies based on objective criteria: your company's size (employees and net turnover) and EU nexus. If you meet the thresholds, you must comply — there is no opt-in or opt-out.

GRI is appropriate for organizations outside CSRD scope that want to report on sustainability impacts, or for CSRD-subject companies that also want a globally recognized framework for non-EU stakeholders. GRI also serves as excellent preparation for future CSRD obligations.

CSRD-subject companies should treat ESRS (the CSRD's reporting standards) as their primary framework and use GRI's interoperability mapping to maintain continuity with previous GRI reporting.

Can You Use Both?

Yes, and organizations already reporting under GRI have a meaningful head start on CSRD compliance. GRI and EFRAG's GRI-ESRS Interoperability Index (November 2024) maps GRI disclosures to their ESRS counterparts and confirms a high level of interoperability on impact reporting, so companies reporting under the ESRS can be considered to report "with reference to" the GRI Standards. The gaps are primarily in financial materiality disclosures, specific quantitative data points, transition plan requirements, and certain governance disclosures that ESRS demands beyond GRI.

For organizations with global operations, maintaining GRI reporting alongside CSRD compliance serves stakeholders outside Europe who are familiar with GRI. The unified data collection process serves both, with ESRS-specific requirements (digital tagging, assurance, financial materiality analysis) applied as an additional layer for EU compliance.

Council Fire's Perspective

Organizations with GRI experience are better positioned for CSRD than they often realize. The materiality assessment process, stakeholder engagement methodology, and impact-oriented thinking that GRI cultivates transfer directly to the ESRS framework. The incremental work is real — financial materiality analysis, more prescriptive data points, assurance readiness, and digital format compliance — but it's incremental, not foundational.

The organizations we see struggling most with CSRD are those that have never reported under any framework. They're building governance structures, data collection systems, and stakeholder engagement processes from scratch while simultaneously meeting a legal deadline. We strongly recommend that companies approaching CSRD scope thresholds — particularly subsidiaries of non-EU parents — begin voluntary GRI reporting now to build the muscles they'll need when CSRD obligations arrive.

Frequently Asked Questions

Does GRI reporting satisfy CSRD requirements?

No, but it provides a strong foundation. CSRD compliance requires reporting under ESRS, which includes requirements beyond GRI — financial materiality, digital XBRL tagging (once EU tagging rules are adopted), mandatory assurance, and specific data points. However, organizations with mature GRI reporting programs will find that significant portions of their existing disclosures map to ESRS requirements.

Should I stop GRI reporting when CSRD starts?

Not necessarily. Many organizations continue GRI reporting alongside CSRD compliance, particularly those with global stakeholders. GRI provides a universally recognized framework that serves audiences outside the EU regulatory context. The practical approach is to produce CSRD-compliant ESRS disclosures as your primary report and publish a GRI Content Index that cross-references the ESRS disclosures.

Can GRI help me prepare for CSRD before my compliance date?

Absolutely. We recommend this approach for companies expecting to fall within CSRD scope. GRI reporting builds the organizational capabilities — materiality assessment, data collection, governance, stakeholder engagement — that CSRD requires. Starting with GRI allows you to learn and improve before compliance becomes mandatory and the stakes are higher.