ISSB / IFRS S1 & S2 adoption

ISSB adoption around the world: how to read the jurisdiction-by-jurisdiction picture

Implementation guidance IFRS Foundation / International Sustainability Standards Board (ISSB)

The IFRS Foundation maintains an official jurisdictional-adoption resource distinguishing finalized "profiles" from developing "snapshots." As of this review, 26 jurisdictions have finalized profiles (including Australia, Brazil, Japan, and Singapore) and 9 jurisdictions have published snapshots of approaches still in development (including Canada, China, South Korea, and the United Kingdom). Adoption approach, effective dates, entity eligibility, transitional relief, and local modifications vary by jurisdiction — there is no single global ISSB effective date.

This is a guidance/reference resource describing how individual jurisdictions are adopting or otherwise using ISSB Standards — the actual legal status, effective date, and eligibility rules differ per jurisdiction and must be confirmed against that jurisdiction's own profile or snapshot, not this summary.

Official publication date
Not yet known
Effective / expected date
Not yet known
The IFRS Foundation does not publish a single official-publication date for this living resource; the review date below reflects when OCEANS™ last checked it.
Last reviewed
31 Aug 2026
OCEANS™ content & research team

What changed?

The IFRS Foundation maintains an official jurisdictional-adoption resource distinguishing finalized "profiles" from developing "snapshots." As of this review, 26 jurisdictions have finalized profiles (including Australia, Brazil, Japan, and Singapore) and 9 jurisdictions have published snapshots of approaches still in development (including Canada, China, South Korea, and the United Kingdom). Adoption approach, effective dates, entity eligibility, transitional relief, and local modifications vary by jurisdiction — there is no single global ISSB effective date.

Who may be affected?

Companies operating in, listed in, or raising capital from jurisdictions that have adopted or are developing ISSB-aligned disclosure requirements.

What information may be required?

  • Jurisdictions where the organization operates, is listed, or raises capital
  • Whether that jurisdiction has a finalized profile or a developing snapshot
  • Effective dates and entity eligibility in that specific jurisdiction
  • Available transitional relief and local modifications
  • Underlying Scope 1/2/3 greenhouse-gas data needed regardless of jurisdiction

What should teams do next?

  • Identify every jurisdiction relevant to your operations, listings, and capital sources
  • Check whether each has a finalized profile or a developing snapshot
  • Confirm effective dates and eligibility directly on the IFRS Foundation's jurisdiction page
  • Build core Scope 1/2/3 data capability that supports multiple jurisdictional formats

What remains uncertain?

Snapshot jurisdictions are explicitly described by the IFRS Foundation as preliminary and subject to change. Do not treat a snapshot as a finalized local requirement.

Value-chain impact

A company may face ISSB-aligned requirements indirectly through a listing venue, parent-company jurisdiction, or a customer/investor jurisdiction even where its own home jurisdiction has not adopted ISSB standards.

Data to prepare, by workflow

Methodology disclosure

Scope 1/2/3 methodology capable of supporting multiple jurisdictional disclosure formats.

Calculation Methodology

International reporting readiness

Underlying emissions data and evidence needed regardless of which jurisdictional format ultimately applies.

Verify Evidence

Official sources

General information — not legal, accounting, regulatory, or assurance advice. Confirm applicability with qualified advisers. OCEANS™ Sustainability supports preparation, not a compliance or applicability determination.

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