Climate Reporting Rule Shift
UK FCA drops mandatory climate reporting in favor of comply or explain rules.
Anonymous
Key Points
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UK SRS S1 requires companies to explain material sustainability risks and opportunities that could affect enterprise value, including how they are governed, incorporated into strategy, managed and measured; S2 covers climate disclosures such as greenhouse-gas emissions, climate-risk management and resilience analysis.
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The FCA is consulting on technical guidance to help companies apply the comply-or-explain approach proportionately, with feedback due by 28 October 2026. It plans a webinar on 19 October 2026 and expects to publish details of its supervisory approach in the second half of 2027.
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ShareAction’s Luke Hildyard warned that the approach could leave investors—including those safeguarding more than £3 trillion in UK pension savings—without complete, reliable and comparable data if some company boards choose not to comply.
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UKSIF chief executive James Alexander said the quality of company reporting will depend partly on the regulator’s forthcoming technical guidance, and urged the FCA to assess disclosures and reconsider its approach if they are inadequate.
The UK Financial Conduct Authority has abandoned mandatory climate reporting for listed companies, switching to a Bloomberg Tax "comply or explain" model instead. Starting January 1, 2027, firms must either report against the UK Sustainability Reporting Standards or publicly justify why they haven't. The FCA cited concerns that strict rules would burden smaller companies and hurt UK competitiveness while still failing to deliver the investor clarity they need.
The shift covers two standards: UK SRS S1, which requires companies to disclose material sustainability risks affecting enterprise value, and S2, which mandates climate-specific data including greenhouse gas emissions and climate resilience. UKSIF and investor groups welcomed alignment with international standards but warned that voluntary explanations could leave investors—protecting over £3 trillion in UK pension savings—without complete, comparable information.
Why the FCA Reversed Course on Mandatory Reporting
The FCA originally planned to require all listed companies to report sustainability data. But feedback from smaller firms highlighted compliance costs they couldn't absorb. Bloomberg Tax reported the regulator decided mandatory rules risked damaging UK competitiveness without guaranteeing investor protection. The comply-or-explain approach lets companies choose: report full data or publicly explain their decision to opt out.
First reports under the new framework arrive in 2028, covering accounting periods that start January 1, 2027. The FCA will phase in some requirements—like Scope 3 emissions reporting—over time to ease the transition. Edie noted the regulator is now consulting on technical guidance to help firms apply the standard proportionately.
Investors Warn of Data Gaps Under Voluntary Framework
ShareAction warned that comply-or-explain risks fragmenting climate disclosures. Luke Hildyard stated that if some boards choose not to report, investors—including pension fund managers—won't get complete, reliable data to assess climate risk across portfolios. Bloomberg Tax highlighted that voluntary explanations could leave significant gaps in investor knowledge.
UKSIF's James Alexander called the quality of future disclosures "a question for the FCA's technical guidance." He urged regulators to assess whether company reporting is adequate and reconsider the approach if firms use "explain" clauses to avoid transparency. Investor groups want robust oversight, not just flexibility.
What Companies Must Now Report (and When)
UK SRS S1 requires firms to disclose how material sustainability risks and opportunities affect enterprise value, including governance, strategy integration, and measurement. UK SRS S2 covers climate-specific items: emissions (Scope 1, 2, and 3), climate-risk management, and resilience testing. The standards mirror the International Sustainability Standards Board framework, ensuring global alignment.
The FCA will hold a webinar October 19, 2026, and expects to release supervisory details in the second half of 2027. Feedback on technical guidance closes October 28, 2026. Bloomberg Tax noted the staggered timeline gives smaller firms time to prepare compliance processes without rushing implementation.
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