Are IFRS S1 and IFRS S2 mandatory?

Asked by: Kellie Grady  |  Last update: June 16, 2026
Score: 4.8/5 (38 votes)

IFRS S1 and IFRS S2 are not globally mandatory by default; they become mandatory only when adopted by local jurisdictions or regulators. Effective from January 1, 2024, they serve as a baseline for sustainability reporting, with many countries, including the UK, Canada, and Australia, moving toward mandatory adoption, while in some regions like Japan, they are being integrated into securities laws.

Is IFRS S1 and S2 mandatory?

The former conservative government announced that they would make IFRS S1 and S2 reporting mandatory with amendments to IFRS S1 and S2 for UK specific requirements. The exposure drafts of UK SRS are therefore very similar to the IFRS S1 and S2 save for certain amendments.

Is IFRS S2 required?

All companies can start applying IFRS S1/S2 now, which became effective for annual reporting as of January 1, 2024. IFRS S1/S2 will become mandatory when and if regulators integrate them into financial reporting frameworks and regulatory requirements.

Are IFRS mandatory?

While adoption of IFRS S1 and IFRS S2 is not yet mandatory in the UK, the standards can be voluntarily adopted by any organisation (including non-profit organisations). Materiality is likely to be a key issue for successful implementation, and ongoing application, of IFRS S2.

What are the requirements of IFRS S1 and S2?

IFRS S1 sets out general requirements for the disclosure of material information about all material sustainability- related financial risks and opportunities and other general reporting requirements. IFRS S2 sets out disclosures that are specific to climate-related matters.

Sustainability Matters Ep 2.1 - From voluntary to mandatory: understanding IFRS S1 and S2

17 related questions found

Who has to apply for IFRS S1?

Although all public and private companies can apply IFRS S1 and IFRS S2, the ISSB does not have the right to mandate the application of the Standards. Companies can voluntarily apply these Standards, and jurisdictional authorities can decide whether to require companies to apply them.

Is IFRS mandatory in the UK?

UK companies required to apply IFRS Accounting Standards in their consolidated financial statements (i.e. companies with their securities admitted to trading on a UK regulated market - see below) are now required to state compliance with UK-adopted IFRS Accounting Standards, rather than EU-adopted IFRS Accounting ...

Do all companies need to follow IFRS?

Private enterprises are still able to use the private enterprises GAAP, while all publicly accountable enterprises are required to use IFRS standards. Not-for-profits and other private enterprises can choose separately developed standards for those entities.

Which countries require IFRS?

IFRS Standards are required or permitted in 169 jurisdictions across the world, including major countries and territories such as Australia, Brazil, Canada, Chile, the European Union, GCC countries, Hong Kong, India, Israel, Malaysia, Pakistan, Philippines, Russia, Singapore, South Africa, South Korea, Taiwan, and ...

What is IFRS S1 and S2 for dummies?

IFRS S1: prescribes how a company prepares and reports its sustainability-related financial disclosures. IFRS S2: sets out supplementary requirements that relate specifically to climate-related risks and opportunities.

Will ESG reporting become mandatory?

In 2025, ESG reporting is shifting from voluntary to mandatory in many regions. New regulations in the EU, US, and UK require companies to publish environmental and social performance data alongside financial results.

Is IFRS S1 voluntary?

AASB S1 corresponds to IFRS S1 and covers all sustainability-related risks and opportunities. This voluntary standard has been issued in recognition of the Australian Government's intention to approach mandatory sustainability requirements from a 'climate first, but not only' perspective.

Is ESG mandatory in Europe?

The EU's Corporate Sustainability Reporting Directive (CSRD) is transforming ESG reporting. Starting from 2024, almost 50,000 companies are subject to mandatory sustainability reporting, including non-EU companies which have subsidiaries operating within the EU or are listed on EU regulated markets.

What is the key difference between IFRS S1 and IFRS S2?

IFRS S1 sets out the general requirements for disclosing all material sustainability risks and opportunities, while IFRS S2 focuses specifically on climate-related disclosures such as climate related risks, scenario analysis, climate-risk metrics and ESG performance targets.

Which countries don't use IFRS?

The U.S., China, Egypt, Bolivia, Guinea-Bissau, Macao and Niger don't allow their domestic publicly traded companies to use International Financial Reporting Standards.

Is IFRS compulsory?

While IFRS compliance is not mandatory for all companies, certain entities are required to follow Ind-AS, including: Listed companies. Unlisted companies with a net worth of Rs. 250 crore or more.

When did IFRS become mandatory?

Use of IFRS instead became mandatory for group accounts of EU listed companies from 2005. It has been the basis of large-company financial statements audited in the UK since then.

Which companies must use IFRS?

IFRSs are required for Government-owned enterprises, newly privatised companies (large taxpayers, or 'LTOs'), banks, and insurance companies. IFRSs required in both consolidated and separate financial statements of financial institutions.

Do private companies need to use IFRS?

It provides a comprehensive framework for preparing and presenting financial statements that are relevant, reliable and understandable. While publicly traded companies in Canada must use IFRS, private companies can choose ASPE or IFRS.

Who needs to comply with IFRS S1?

IFRS S1 applies to all businesses that prepare general purpose financial reports, regardless of the accounting framework used, including those following International Financial Reporting Standards (IFRS), generally accepted accounting principles (GAAP), or other local reporting standards.

Do companies have to follow IFRS?

International Financial Reporting Standards (IFRS) are a set of accounting rules that companies need to follow for preparing financial statements. Compliance with IFRS ensures consistency and transparency in financial reporting globally. However, not all companies are required to mandatorily adhere to IFRS.

Is ESG reporting compulsory?

In India, ESG disclosure has been formalized through the Securities and Exchange Board of India (SEBI)'s Business Responsibility and Sustainability Reporting (BRSR) framework, making it mandatory for the top 1000 listed companies by market capitalization from FY 2022-23.

Why does an entity that applies IFRS S2 also apply IFRS S1?

A company is required to apply IFRS S1 and IFRS S2 together but paragraph E5 of IFRS S1 allows a company, in its first year of applying ISSB Standards, to disclose information on only its climate-related risks and opportunities (in accordance with IFRS S2)—the so-called 'climate-first' approach: In the first annual ...

Which accounting system is used in the UK?

Sage Business Cloud Accounting & Invoicing: Invoicing and cash flow management software: invoice creation and management, expenditure and revenue tracking, global view of the company's finances and VAT automation.