FCA begins UK sustainability reporting initiative

The Financial Conduct Authority (FCA) in the UK recently initiated a consultation regarding the implementation of mandatory sustainability reporting for listed companies in the UK. This initiative is based on the forthcoming UK Sustainability Reporting Standards (UK SRS). The consultation is anticipated to be of considerable interest to UK listed companies, including those from overseas with a UK listing. However, the immediate impact of this consultation is projected to be somewhat limited over the next few years.

The groundwork for this initiative was laid down in June 2025 when the UK government proposed to adopt the initial UK SRS. These standards encompass a general sustainability reporting standard and a climate reporting standard modeled after the S1 and S2 standards, respectively, of the International Sustainability Standards Board (ISSB). The ISSB introduced these standards in June 2023, and since then, they have gained significant traction. As of October 2025, these standards were applicable to about 60% of global GDP and a comparable percentage of global greenhouse gas emissions, although not all countries have made them mandatory. This aligns with the ISSB’s goal of serving as a global benchmark for sustainability reporting.

The UK has been a staunch supporter of the ISSB’s efforts, but the adoption process has encountered some delays. It is anticipated that the first UK SRS will be unveiled in February 2026, after which businesses will have the option to disclose their compliance with these standards on a voluntary basis. However, mandatory reporting can only be enforced through revisions to existing laws, regulations, or FCA rules.

Given the UK’s progressive stance, listed companies in the country are well-versed in reporting on climate-related financial risks and opportunities. In fact, the UK made history by being the first nation to mandate such reporting in line with the Task Force on Climate-related Financial Disclosures (TCFD) framework back in 2021, initially for premium listed companies. The ISSB’s S2 climate standard closely mirrors the TCFD framework in many aspects, although there are some notable distinctions, such as the compulsory disclosure of scope 3 emissions.

This pioneering step by the FCA mirrors a global shift towards establishing sustainability reporting standards. It is expected to have far-reaching implications for listed companies in the UK, compelling them to bolster their measures for sustainability reporting and transparency. The FCA’s move could potentially spearhead a broader adoption of sustainability reporting standards by regulatory bodies worldwide. This development signals a pivotal moment in the integration of sustainability considerations into mainstream reporting practices, heralding a more responsible and ethical era for corporate governance and accountability.