ISSB / IFRS Sustainability Disclosure Standards
The International Sustainability Standards Board (ISSB) has developed IFRS S1 and S2 to create a global baseline for investor-focused sustainability and climate disclosures.
At a Glance
- IFRS S1 sets out general requirements for sustainability-related financial disclosures.
- IFRS S2 focuses specifically on climate-related disclosures, building on TCFD.
- Standards are designed to be a global baseline that jurisdictions can build upon.
- Many jurisdictions are adopting or aligning with ISSB standards.
Who is in Scope?
ISSB standards are being adopted by various jurisdictions. The UK, Australia, Canada, Singapore, and others are implementing or consulting on ISSB-aligned requirements. Companies should check their jurisdiction's adoption timeline.
Key Deadlines
2024
First reporting periods begin in early-adopter jurisdictions.
2025
UK large companies begin ISSB-aligned reporting.
2025-2026
Further jurisdictions implementing ISSB requirements.
Key Principles
- Enterprise value and financial materiality focus
- Climate-first approach (IFRS S2)
- Built on TCFD recommendations
- Interoperability with jurisdictional standards
- Industry-based guidance from SASB
What Companies Should Do Now
- 1Understand how your jurisdiction is adopting ISSB standards.
- 2Assess overlap and differences with CSRD/ESRS if applicable.
- 3Review SASB industry-based guidance for relevant metrics.
- 4Prepare climate scenario analysis capabilities.
Investor-focused sustainability-related financial disclosures with emphasis on climate
Official Resources
Visit ISSBNeed Help With ISSB?
Our resources, reports, and expert interviews can help you navigate ISSB requirements.