IFRS S1 (General Sustainability Disclosures)

IFRS S1 General Requirements for Disclosure of Sustainability-related Financial Information is the International Sustainability Standards Board’s (ISSB) overarching standard requiring entities to disclose material information about sustainability-related risks and opportunities. Issued in June 2023 and effective from January 1, 2024 (with earlier application permitted), IFRS S1 sets out the: objective of sustainability-related financial disclosures; general requirements for how to prepare and present disclosures; and four core pillars (Governance, Strategy, Risk Management, and Metrics & Targets) applicable across all sustainability topics. IFRS S1 must be applied together with IFRS S2.

IFRS S1 General Requirements for Disclosure of Sustainability-related Financial Information (ISSB, June 2023); IFRS Foundation.

IFRS S1 is the foundation for sustainability-related financial disclosures under the ISSB framework, now adopted or integrated by 36+ jurisdictions including the UK (UK SRS, February 2026), Australia, Canada, Singapore, and Japan. Multinationals with operations across multiple jurisdictions should align their ESG data systems with IFRS S1/S2 as the global baseline — this also positions them well for CSRD compliance, as ESRS and IFRS S1/S2 are substantially interoperable for climate-related disclosures.