Brazil adopts ISSB standards with mandatory use looming by 2026

The Brazilian Ministry of Finance, in conjunction with the Comissão de Valores Mobiliários (CVM), has unveiled plans to incorporate the International Sustainability Standards Board’s (ISSB) standards into the nation’s regulatory framework.

This significant move will see the rollout of the ISSB’s IFRS S1 and IFRS S2 begin on a voluntary basis in 2024, ultimately becoming mandatory on January 1, 2026.

According to the IFRS, Brazil’s commitment to adopting the ISSB global baseline underscores its determination to enhance transparency surrounding sustainability-related risks and opportunities, with the goal of attracting global investment and fortifying the nation’s capital markets.

ISSB chair Emmanuel Faber acknowledges Brazil’s adoption as testament to the strong support received from the ISSB worldwide. ‘I commend the Brazilian Ministry of Finance and CVM for providing clarity to companies and investors in Brazil by setting out a clear roadmap toward mandatory adoption,’ he says.

The move comes less than four months after the ISSB officially launched its two global standards, first in London and subsequently through a series of events hosted by its partners worldwide.

Mandatory use

According to the ISSB, the two standards, which set rules for general requirements for disclosure and climate-related disclosures, have been designed to help companies communicate their sustainability in a ‘robust, comparable and verifiable manner’.

Officially, the IFRS S1 and IFRS S2 standards will be effective from January 2024 with the first reports by public companies expected to be published in 2025. Adoption of the framework will remain broadly voluntary.

Brazil now joins the ranks of Latin American nations that have mandated sustainability-related financial disclosures. Chile and Colombia have already embraced the TCFD recommendations and SASB Standards, which serve as the foundation for the ISSB Standards.

Mexico’s national standard-setters are also actively exploring the potential integration of the ISSB Standards into their regulatory framework.

Upcoming events

  • Briefing – Lessons from the 2025 Proxy Season
    Tuesday, July 22, 2025

    Briefing – Lessons from the 2025 Proxy Season

    In partnership with WHEN 8.00 am PT / 11.00 am ET / 4.00 pm BST / 5.00 pm CET DURATION 45 minutes About the event The 2025 proxy season was influenced by several key issues, including changes announced in Staff Legal Bulletin 14M regarding the interpretation of Rule 14a-8, and…

    Online
  • Briefing – Effective earnings preparation amid macro volatility
    Thursday, August 07, 2025

    Briefing – Effective earnings preparation amid macro volatility

    In partnership with WHEN 8.00 am PT / 11.00 am ET / 4.00 pm BST / 5.00 pm CET DURATION 45 minutes About the event Amid constant tariff news, geopolitical upheaval and other developments stemming from the new US administration, IR teams have their work cut out as they prepare…

    Online
  • IR Impact Forum – AI & Technology
    Wednesday, November 12, 2025

    IR Impact Forum – AI & Technology

    About the event As more investors, governance and corporate communicators teams embrace AI, machine learning and emerging technologies to inform their decision-making, investor relations professionals are facing a pivotal moment: adapt and lead, or risk falling behind. At this early but fast-moving stage of adoption, IR teams are asking important…

    New York, US

Explore

Andy White, Freelance WordPress Developer London