Neutral comparison
ESG reporting frameworks compared
CSRD/ESRS, GRI, ISSB, VSME, TCFD: a crowded field of overlapping standards. We have no framework to sell, so here is a straight, side-by-side comparison, with the one distinction that explains most of the confusion: single versus double materiality. European Commission
TL;DR
- CSRD/ESRS: EU mandatory, double materiality, the most comprehensive regime.
- ISSB: investor-focused, single (financial) materiality, adopted in 30-plus jurisdictions.
- GRI: voluntary, impact materiality, broad stakeholders.
- TCFD and SASB: absorbed into the ISSB.
- Report once: they interoperate; build one data set and tag to many.
The comparison
CSRD vs GRI vs ISSB vs VSME vs TCFD
Owner, whether it is mandatory, the materiality lens, the primary audience and where each stands in 2026.
| Framework | Owner | Mandatory? | Materiality lens | Audience | Status 2026 |
|---|---|---|---|---|---|
| CSRD / ESRS | EU / EFRAG | Mandatory (EU scope) | Double (impact + financial) | All stakeholders + investors | In force; simplified by Omnibus and revised ESRS |
| ISSB (IFRS S1/S2) | IFRS Foundation | Mandatory where adopted | Single (financial / enterprise value) | Investors | Adopted in 30+ jurisdictions |
| GRI | GRI | Voluntary | Impact | Broad stakeholders | Most-used voluntary standard |
| VSME | EU / EFRAG | Voluntary | Simplified (proportionate) | Smaller companies and value chain | EU voluntary standard; acts as value-chain cap |
| TCFD | FSB (disbanded) | Legacy / superseded | Single (climate) | Investors | Folded into IFRS S2 |
| SASB | Now ISSB | Voluntary | Single, industry-specific | Investors | Consolidated under ISSB |
CDP (the environmental disclosure questionnaire) is a further voluntary system, aligned to the ISSB and ESRS, often used by investors and customers. European Commission
Single vs double materiality: the key distinction
The fault line between the frameworks is the materiality lens. Single materiality, used by the ISSB and most investor frameworks, asks only whether a sustainability matter affects enterprise value. Double materiality, used by CSRD/ESRS, adds the question of whether the company affects people and the planet, so a topic can be reportable on either lens. GRI sits on the impact side. Understanding this one distinction explains why the same company can look very different across frameworks. ESRS 1, Delegated Reg. (EU) 2023/2772
For the full mechanics, see our double materiality guide.
How they interoperate
The frameworks increasingly converge. Because ESRS requires double materiality, it effectively spans both the GRI (impact) and ISSB (financial) lenses in one regime. ESRS E1 and IFRS S2 share the TCFD architecture; EFRAG has an interoperability mapping with GRI and interoperability guidance with the ISSB to reduce double-reporting. TCFD and SASB have been absorbed into the ISSB, so they are no longer standalone destinations. A CSRD reporter can usually satisfy GRI and much of ISSB with incremental effort. IFRS Foundation
Which applies to me?
Use this as a quick steer, then confirm with the scope checker:
- In EU CSRD scope (over 1,000 employees and over EUR 450m turnover): ESRS is your anchor. Check your scope.
- Global investors or a non-EU listing: add ISSB (IFRS S1/S2).
- Broad stakeholder communication: GRI.
- Smaller EU company, or being asked for data: the voluntary VSME standard (and the value-chain cap).
Whatever the mix, build one data architecture, tag each datapoint to the frameworks that apply, and report once. For the broader picture, see our sustainability reporting hub.
The EU frameworks are being revised
FAQ
People also ask
What is an ESG reporting framework?
An ESG reporting framework is a structured set of standards that tells a company what sustainability information to disclose and how. Several major frameworks coexist (CSRD/ESRS, ISSB, GRI, plus legacy TCFD and SASB). The practical question is which apply to you and how they relate; CSRD/ESRS is increasingly the most comprehensive and is consolidating the field.
What is the difference between GRI, ISSB and ESRS?
GRI is voluntary, impact-materiality focused, for a broad stakeholder audience. ISSB (IFRS S1/S2) is investor-focused, single (financial) materiality, mandatory where jurisdictions adopt it. ESRS is the EU mandatory regime and uses double materiality (impact and financial), so it spans both the GRI and ISSB lenses in one standard.
What is single vs double materiality?
Single materiality, used by ISSB and most investor frameworks, asks only whether a topic affects enterprise value (financial materiality). Double materiality, used by CSRD/ESRS, also asks whether the company affects people and the planet (impact materiality). Under double materiality a topic is reportable if it is material on either lens.
Which framework should we use?
If you are in EU scope, CSRD/ESRS is your anchor. If you have global investors or a non-EU listing, add ISSB. For broad stakeholder communication, GRI. Smaller EU companies can use the voluntary VSME. The efficient approach is to build one data architecture, tag datapoints to multiple frameworks, and report once.
Does CSRD replace GRI?
No. CSRD/ESRS is mandatory EU law; GRI remains a voluntary global standard. They are interoperable: EFRAG and GRI have an interoperability mapping, and because ESRS covers impact materiality, a CSRD reporter can satisfy much of GRI with mapping rather than a separate report.
Can one report satisfy multiple frameworks?
Largely, yes. ESRS double materiality spans both the GRI (impact) and ISSB (financial) lenses, and EFRAG has interoperability guidance with both. ESRS E1 and IFRS S2 share TCFD architecture. Build one data set, tag each datapoint to the frameworks that apply, and you can report once with framework-specific indexes.
This is guidance, not legal advice
Sources
- [1]European Commission: Corporate sustainability reportingretrieved 8 Jun 2026
- [2]Delegated Regulation (EU) 2023/2772 (ESRS Set 1)retrieved 8 Jun 2026
- [3]Global Reporting Initiative (GRI) Standardsretrieved 8 Jun 2026
- [4]IFRS Foundation: International Sustainability Standards Board (ISSB)retrieved 8 Jun 2026
- [5]Council of the EU: sign-off of the Omnibus simplification (24 Feb 2026)retrieved 8 Jun 2026
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