ISSB Proposes Updates to IFRS Sustainability Disclosure Taxonomy for GHG Emissions

Posted 03 August 2026 Written by Acts Online
Category Sustainability Reporting

Brought to you by SA Accounting Academy: The International Sustainability Standards Board (ISSB) has published proposed updates to the IFRS Sustainability Disclosure Taxonomy to reflect targeted amendments made to IFRS S2 Climate-related Disclosures.

In terms of the ISSB standard-setting framework, the proposed publication, titled IFRS Sustainability Disclosure Taxonomy – Proposed Update 1 Amendments to Greenhouse Gas Emissions Disclosures, incorporates digital tagging changes following implementation reliefs issued for IFRS S2 in December 2025.

The ISSB Taxonomy enables reporting entities to assign standardized digital tags to information prepared under ISSB Standards, making corporate disclosures computer-readable for investors and analysts. The taxonomy update does not introduce new disclosure obligations or alter compliance requirements under ISSB Standards.

Key elements of the taxonomy update include:

  • Taxonomy Alignment: Inclusion of updated XBRL tags matching the practical reliefs and clarifications provided for greenhouse gas (GHG) disclosures under IFRS S2.
  • Enhanced Data Searchability: Facilitating automated extraction, comparison, and analysis of digital sustainability reports by capital markets.
  • Technical Scope: Maintenance of strict alignment with underlying standard changes without adding additional disclosure requirements.

Click here to download the Proposed ISSB Taxonomy Update PDF.

What this means for you, your business, or your clients

  • For yourself: Stay informed on digital reporting taxonomies to ensure accuracy when reviewing or auditing digitally tagged sustainability disclosures.
  • For your business: Align internal reporting tools and software vendors with the updated taxonomy tags when preparing IFRS S2 climate disclosures.
  • For your clients: Advise client management that digital tagging updates facilitate data processing for investors without expanding underlying IFRS S2 compliance duties.

Originally published at https://accountingacademy.co.za/news/read/issb-proposed-updates-to-digital-sustainability-taxonomy

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