๐Ÿ‡ฌ๐Ÿ‡งJurisdiction Guide

Supplying to UK companies? Here's what UK SRS, SECR, and the Modern Slavery Act mean for your business.

Large UK companies are subject to mandatory energy and carbon reporting under SECR, and the UK Sustainability Reporting Standards (UK SRS) โ€” based on IFRS S1 and S2 โ€” were finalised in February 2026, with mandatory adoption for listed companies proposed from January 2027. TCFD was formally disbanded in October 2023 and is being superseded by UK SRS. If you supply to any UK business with over 250 employees, expect a supplier questionnaire.

Key regulations in the UK

UK SRS โ€” UK Sustainability Reporting Standards (S1 & S2)

Upcoming
UK SRS S1 and S2 finalised February 25, 2026. Currently voluntary. Mandatory adoption for listed companies proposed from January 1, 2027 (FCA consultation CP26/5 active).

The UK's endorsed versions of IFRS S1 and S2, published by the UK Endorsement Board on February 25, 2026. UK SRS supersedes TCFD (formally disbanded October 2023). The FCA is consulting on mandatory adoption for listed companies from January 1, 2027. Large UK companies will be required to disclose climate-related risks, opportunities, and Scope 1, 2, and 3 emissions โ€” driving supply chain data requests.

SECR โ€” Streamlined Energy and Carbon Reporting

In Force
Mandatory for UK quoted companies and large unquoted companies from April 2019.

SECR requires large UK companies to report their energy use and carbon emissions in their annual reports. Companies must disclose Scope 1 and 2 emissions and an intensity ratio. Many companies also request Scope 3 data from their supply chains.

Modern Slavery Act

In Force
In force since October 2015. Annual statement required.

UK companies with an annual turnover of ยฃ36 million or more must publish an annual Modern Slavery Act statement. Suppliers may be asked to complete due diligence questionnaires on their labour practices, supply chain transparency, and anti-slavery policies.

TCFD โ€” Task Force on Climate-related Financial Disclosures (superseded)

In Force
Was mandatory for UK-listed companies from April 2022. TCFD formally disbanded October 2023. Obligations now transitioning to UK SRS.

TCFD was mandatory for UK-listed companies and large private companies from April 2022. The TCFD was formally disbanded in October 2023, with its climate disclosure framework being superseded by the UK Sustainability Reporting Standards (UK SRS S2). Existing TCFD-aligned disclosures remain valid during the transition period.

UK GDPR & Data Protection Act 2018 โ€” 72-Hour Breach Notification

In Force
In force since 25 May 2018 (retained post-Brexit as UK GDPR).

Under UK GDPR Article 33, organisations must notify the Information Commissioner's Office (ICO) within 72 hours of becoming aware of a personal data breach that is likely to result in risk to individuals. If the breach is likely to result in high risk to individuals, affected persons must also be notified without undue delay. The ICO can impose fines of up to ยฃ17.5 million or 4% of global annual turnover for serious breaches. Report at: report.ico.org.uk

NIS Regulations 2018 โ€” Network and Information Systems

In Force
In force since 10 May 2018. UK Cyber and Resilience Bill (2025) will significantly expand scope.

The UK NIS Regulations require operators of essential services (energy, transport, water, health, digital infrastructure) and relevant digital service providers to implement appropriate security measures and notify their competent authority of significant incidents without undue delay. The UK Cyber and Resilience Bill (announced 2025) will expand NIS scope and introduce new supply chain security requirements. Suppliers to essential services operators should prepare for increased cybersecurity due diligence requests.

What this means for you as a supplier

UK buyers subject to SECR and the incoming UK SRS are already requesting supplier data to complete their own mandatory reports. With UK SRS proposed as mandatory from January 2027, expect increasing requests for Scope 3 supply chain emissions data. If you supply to any UK business with over 250 employees, prepare to respond to questionnaires covering GHG emissions, energy use, environmental policies, and labour practices.

Key dates

April 2022

TCFD mandatory for UK-listed companies (now transitioning to UK SRS)

October 2023

TCFD formally disbanded โ€” UK SRS supersedes TCFD framework

February 2026

UK SRS S1 and S2 finalised and published โ€” voluntary use from now

January 2027

UK SRS mandatory adoption proposed for listed companies (FCA consultation active)

Annually

SECR reports published โ€” supply chain data increasingly requested

Annually

Modern Slavery Act statements โ€” supplier due diligence questionnaires

Last reviewed: April 2026. This guide is for general information only and does not constitute legal advice. Regulations change โ€” verify current requirements with a qualified adviser.

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