What Is SSA 5000?

The Institute of Chartered Accountants of India (ICAI) issued SSA 5000, titled General Requirements and Framework for Sustainability Assurance Engagements, on September 20, 2026. The standard will apply to sustainability assurance engagements for financial years beginning on or after April 1, 2027.

India has mandated the Business Responsibility and Sustainability Report (BRSR) for its top 1,000 listed companies by market capitalisation, but no standard format previously existed for assuring that disclosed data. SSA 5000 introduces a principle-based framework designed to bring auditing-level rigour to sustainability information, addressing the growing gap between what companies report and how reliably that reporting can be verified.

This article explains what SSA 5000 covers, when it takes effect, how it differs from India’s existing ESG-reporting rules, and what companies should do now to prepare for assurance readiness.

Sustainability reporting in India has expanded rapidly since SEBI made the BRSR mandatory for the top 1,000 listed companies from financial year 2022-23, requiring structured, XBRL-filed disclosures on environmental, social and governance performance. Reporting volume grew steadily, but assurance practices around that reporting varied widely, with companies engaging different assurance providers under different international standards and no single Indian benchmark to anchor the process.

ICAI’s Sustainability Reporting Standards Board addressed this gap by issuing an exposure draft of the Standard on Sustainability Assurance Engagements (SSAE) 3000 in May 2026, inviting public comment through June 19, 2026. That draft ran parallel to a larger global shift: the International Auditing and Assurance Standards Board finalised its own International Standard on Sustainability Assurance (ISSA) 5000, intended as a worldwide benchmark for sustainability assurance quality, with jurisdictions including Hong Kong already moving to adopt converged versions of it.

SSA 5000 builds directly on that exposure draft process. It formalises India’s sustainability assurance approach into a final standard that aligns with the IAASB’s global framework while retaining specific adjustments suited to the Indian regulatory context.

SSA 5000 marks a shift in India’s sustainability reporting landscape, from simply disclosing ESG information to proving that the information is reliable and evidence-backed. Issued by ICAI on September 20, 2026 and effective for financial years beginning April 1, 2027, the standard aligns India with the IAASB’s global ISSA 5000 framework while retaining two carve-outs suited to the Indian audit environment.

As the 2027 applicability date approaches, industry stakeholders should watch for ICAI’s detailed application guidance, further clarity on how the standard interacts with SEBI’s BRSR mandate, and how assurance providers apply the new framework across the climate, labour and biodiversity disclosures it covers.