What IFRS S1 and IFRS S2 require
General sustainability and climate-first detail
IFRS S1 sets cross-cutting requirements for disclosing sustainability-related risks and opportunities across governance, strategy, risk management, and metrics and targets. IFRS S2 adds climate-specific requirements, including greenhouse gas emissions (Scope 1, 2, and relevant Scope 3), climate-related scenario analysis where applicable, industry-based metrics by reference to the SASB Standards where relevant, and connection between climate disclosures and financial statements where required by the standards.
Both standards build on the TCFD structure that many organisations already use, but with clearer measurement and presentation expectations designed for capital markets.
How jurisdictions are adopting ISSB-aligned rules
National and regional authorities are moving at different speeds, but the direction is convergence on ISSB as a common reference. Examples filers should track include:
- United Kingdom Sustainability Disclosure Requirements and linked FCA rules that build on ISSB-aligned UK-endorsed standards
- Singapore SGX RegCo listing requirements for climate reporting on an ISSB-aligned timetable for listed issuers
- Japan Sustainability standards issued by the Sustainability Standards Board of Japan (SSBJ), aligned with ISSB
- Canada Canadian Sustainability Standards Board (CSSB) adoption of ISSB standards for Canadian capital markets
- Australia Australian Sustainability Reporting Standards (ASRS) issued by the AASB, aligned with IFRS S1 and S2
Always confirm effective dates, entity scope, and safe harbour language with your counsel and auditors because local law and stock exchange rules can differ from the international baseline text. Regional summaries in our library include the United Kingdom, Asia-Pacific, Canada, and international standards hub.
Why a global baseline matters for cross-border organisations
Organisations with cross-border operations often span multiple listing jurisdictions, debt markets, and commercial headquarters. When each market used a different climate disclosure dialect, reporting teams duplicated work and still faced restatements. ISSB-style convergence reduces translation overhead: one controlled climate dataset and narrative architecture can be adapted to local filing formats rather than rebuilt from scratch.
A shared baseline also helps suppliers and host cities align questionnaires, since many now trace back to the same Scope 1, 2, and 3 expectations and TCFD-style governance disclosures.
Key metrics and industry specificity
Scopes, scenarios, and SASB where material
Climate disclosures under IFRS S2 centre on measurable greenhouse gas data, including all Scope 1 and Scope 2 emissions and all relevant Scope 3 categories, using the GHG Protocol unless a jurisdiction permits an alternative. Filers also describe climate resilience using scenario analysis appropriate to their circumstances and disclose industry-based metrics drawn from SASB Standards when those metrics are applicable to the organisation's activities.
Industry-specific metrics may require combining activity-based and financial metrics appropriate to the organisation's operations, agreed with assurance providers.
Transitional reliefs and phased adoption
IFRS S1 and S2 include temporary reliefs that jurisdictions may carry into local law, such as allowing entities to report only climate-related risks and opportunities in the first annual reporting period, reporting Scope 3 only in the second year, and using simplified tools for scenario analysis in early periods. National regulators decide which reliefs apply and for how long, so your first-year package may look different from a mature filing even when the end-state aligns with ISSB.
Use the transition window to fix data gaps in travel, temporary power, and supply chain categories rather than deferring measurement work entirely.
How 50X Impact helps
50X Labs focuses on sustainability technology for operations-heavy sectors. 50X Impact helps you maintain ISSB-relevant greenhouse gas inventories, document methodology choices that reviewers expect, and map outputs to both IFRS S2-style climate tables and parallel frameworks your sponsors or cities still request.
The platform keeps evidence chains intact so first-year reliefs do not become permanent spreadsheet debt, and the same dataset feeds your “Digital Twin” for planning venues, tours, and municipal services under tightening disclosure expectations.