ISSB proposes updates to its digital sustainability taxonomy

The International Sustainability Standards Board (ISSB) has today published IFRS Sustainability Disclosure Taxonomy—Proposed Update 1 Amendments to Greenhouse Gas Emissions Disclosures.

This proposal considers updates to the IFRS Sustainability Disclosure Taxonomy (ISSB Taxonomy) reflecting Amendments to Greenhouse Gas Emissions Disclosures, which made targeted amendments to IFRS S2 Climate-related Disclosures in December 2025.

The ISSB Taxonomy neither introduces new requirements nor affects a company’s compliance with ISSB Standards.

The December 2025 amendments to IFRS S2 were developed in response to implementation challenges identified as companies began applying the Standard. They provided reliefs and clarifications in relation to greenhouse gas emissions disclosures while maintaining decision-useful information for investors.

The ISSB Taxonomy supports digital financial reporting by enabling companies to assign tags to information prepared in accordance with ISSB Standards.

Tagging makes reported information computer-readable, enabling investors and other capital providers to search, extract, compare and analyse sustainability-related disclosures more efficiently.

The deadline for comments on this proposed update to the ISSB Taxonomy is 28 September 2026.

ISSB Vice-Chair Sue Lloyd said:

Providing a high-quality digital taxonomy is an important aspect of our work to enable investors to compare sustainability-related financial disclosures. This proposed update reflects the targeted amendments we made to IFRS S2 last year and will help ensure that investors can continue to efficiently analyse sustainability-related financial information reported in a digital format. We encourage stakeholders to review the proposed updates and provide feedback.

Read and comment on the proposed update

• Access the IFRS Sustainability Disclosure Taxonomy—Proposed Update 1 Amendments to Greenhouse Gas Emissions Disclosures.
• Submit your comment letter.

The deadline for comments on this proposed update to the taxonomy is 28 September 2026.