Why There Are Multiple ESG Frameworks
If you've recently been asked to report under ESRS, TCFD, and GRI simultaneously, you're not alone. Each framework emerged from a different context — and understanding those origins helps clarify which applies to your company and why.
| Framework | Developed By | Primary Purpose | |---|---|---| | ESRS | EFRAG (EU mandate) | EU mandatory corporate sustainability reporting | | TCFD | FSB Task Force | Climate-related financial risk disclosure | | GRI | Global Reporting Initiative | Voluntary stakeholder-focused sustainability reporting |
ESRS (European Sustainability Reporting Standards)
What it is: The mandatory reporting standards underpinning the EU's Corporate Sustainability Reporting Directive (CSRD). ESRS sets out exactly what large EU companies — and eventually non-EU companies with significant EU activity — must disclose about their sustainability impacts, risks, and opportunities.
Who must comply: Companies in scope of CSRD (see our CSRD compliance checklist for thresholds).
Key characteristics:
- Mandatory for in-scope companies — non-compliance risks regulatory sanctions
- Covers 12 topical standards across environment (E1–E5), social (S1–S4), and governance (G1), plus two cross-cutting standards
- Requires a double materiality assessment to determine which standards apply
- Must be included in the statutory management report, tagged in XBRL format
- Requires third-party assurance
Relationship to TCFD and GRI: ESRS was deliberately designed with interoperability in mind. ESRS E1 (Climate Change) is substantially aligned with TCFD, and EFRAG has published interoperability guidance showing where ESRS disclosures satisfy GRI requirements. If you already report under GRI or TCFD, a significant portion of that work carries over.
TCFD (Task Force on Climate-related Financial Disclosures)
What it is: A framework for disclosing climate-related financial risks and opportunities, structured around four pillars: Governance, Strategy, Risk Management, and Metrics & Targets.
Who must comply: TCFD started as voluntary guidance but has been adopted into mandatory regulation in a growing number of jurisdictions:
- UK: Large companies and financial institutions must report against TCFD (mandatory since 2022)
- EU: ESRS E1 incorporates TCFD requirements — CSRD compliance satisfies TCFD for EU purposes
- Singapore: Listed companies on SGX must disclose against TCFD (phased from 2023)
- US: The SEC's climate disclosure rule incorporates TCFD-aligned requirements
Key characteristics:
- Focus is exclusively on climate — does not cover biodiversity, social, or governance beyond climate
- Emphasises scenario analysis: companies must assess their resilience under different climate scenarios
- Focuses on financial materiality — how climate affects the business, not how the business affects the climate
- More principles-based than ESRS — companies have more flexibility in how they disclose
When TCFD is your primary obligation: If you're a UK-incorporated company, Singapore-listed company, or a financial institution regulated in a TCFD-adopting jurisdiction, TCFD may be your primary mandatory framework. CSRD-covered companies effectively satisfy TCFD through ESRS E1.
GRI (Global Reporting Initiative Standards)
What it is: The world's most widely used sustainability reporting framework, covering environmental, social, and governance topics. GRI is used by over 10,000 organisations globally across more than 100 countries.
Who must comply: GRI is voluntary — no regulator mandates it. Companies choose to use GRI to demonstrate transparency to stakeholders including investors, customers, employees, and civil society.
Key characteristics:
- Impact materiality focus: GRI is primarily about a company's impacts on the world, not financial risks to the company
- Broad coverage: GRI Universal Standards (GRI 1, 2, 3) plus 31 topic-specific standards covering everything from emissions to child labour
- Well-established stakeholder legitimacy: if you want investors and NGOs to understand your sustainability performance, GRI is the common language
- Can be used at different levels — "in accordance" with GRI requires full compliance; "with reference to" GRI allows selective use
GRI and CSRD: EFRAG has published a detailed interoperability index showing that approximately 75% of ESRS disclosures can be met through existing GRI reporting. Companies already reporting under GRI are well-positioned for CSRD transition.
Which Framework Should You Prioritise?
Use this decision guide:
You are a large EU company: → ESRS/CSRD is mandatory. Start here. Your ESRS compliance will largely satisfy TCFD and partially satisfy GRI.
You are a UK company: → TCFD is mandatory for large UK companies. If you also have significant EU operations, CSRD may apply too.
You are a Singapore-listed company: → SGX TCFD requirements apply. Check whether CSRD applies based on your EU revenue.
You are a US company: → Monitor SEC climate disclosure rules. Voluntary GRI reporting is common for investor communications.
You want to go beyond compliance: → GRI provides the most comprehensive framework for demonstrating impact to all stakeholders.
How the Frameworks Overlap
The good news: these frameworks are increasingly aligned by design.
- ESRS ↔ TCFD: ESRS E1 disclosures satisfy TCFD requirements for CSRD-covered companies. EFRAG has published a full mapping.
- ESRS ↔ GRI: EFRAG and GRI published an interoperability index in 2023. Approximately 75% overlap.
- TCFD ↔ GRI: GRI has published guidance on how TCFD-aligned disclosures relate to GRI climate standards.
The practical implication: if you build your reporting infrastructure to satisfy ESRS, you will largely satisfy the other two frameworks with incremental additional effort.
Staying Current on Framework Developments
All three frameworks are actively evolving. EFRAG is developing sector-specific ESRS standards, TCFD was absorbed into the ISSB's IFRS S2 standard in 2023, and GRI regularly updates its topic-specific standards.
ESGFlux monitors regulatory updates from EFRAG, the ISSB, GRI, and national regulators, delivering daily AI-summarised briefings to compliance teams so you don't miss material changes.