From 2026, the United Kingdom will begin phasing in mandatory climate-related disclosures under the UK Sustainability Reporting Standards (UK SRS). These disclosures are linked to the global International Sustainability Standards Board (ISSB) framework. The UK SRS plays a key role in the UK Government’s Sustainability Disclosure Requirements (SDR) framework, which aims to standardise reporting and increase transparency and corporate responsibility, primarily for investment decisions.
Companies will be required to publish their sustainability disclosures at the same time as their annual accounts from the first full accounting period of 2026 onward. This means that it’s essential to start collecting robust data now to be ready.
In the first two years, companies are only required to disclose client-related risks. Wider sustainability aspects are required from year three onward. However, organisations are encouraged to report sustainability risks and opportunities earlier.
Unlike the EU Corporate Sustainability Reporting Directive (CSRD), which applies a double materiality approach— financial materiality (how sustainability matters affect the entity) and impact materiality (how the entity affects the environment, people and wider society)—the UK SRS focuses on financial impacts.