UK SRS S1 and S2 Implementation Guide
Complete implementation roadmap for UK Sustainability Reporting Standards. FCA proposes mandatory for approximately 500 listed companies from January 2027.
Market Intelligence & Implementation Tools
UK SRS by the numbers
Nine canonical figures that anchor the UK Sustainability Reporting Standards regime — every figure pinned to a primary source. The framing on this page sits behind every other reference page on the site.
Last verified 12 May 2026 · Updates as regulators publish new figures
UK SRS S1 (General Requirements) and UK SRS S2 (Climate-related Disclosures) released for voluntary use immediately, alongside the Government Response to the consultation.
DBT · UK SRS S1 and S2 publication
Approximately 500 issuers across UKLR 6 (Commercial), 16 (Non-equity), and 22 (Transition). UKLR 14 (Secondary) and 15 (Depositary Receipts) — around 40 more — face a flexible disclose-home-jurisdiction approach.
FCA · CP26/5 PDF · Chapter 3
170 via online survey, 39 by direct email submission. 199 from organisations, 10 from individuals. 68% supported the four originally-proposed amendments.
Government Response · paras 1.6–1.7
Governance, Strategy, Risk Management, and Metrics and Targets. The structural foundation carried directly from TCFD (2017, disbanded 2023) — but disclosure requirements within each pillar are substantially enhanced.
UK SRS S2 · Paragraphs 5–37 · TCFD Recommendations
From purchased goods (Cat 1) to investments (Cat 15). Comply-or-explain under FCA proposals; one-year deferral available; proposed mandatory from January 2028.
UK SRS S2 · Paragraphs B33–B58 · GHG Protocol Scope 3
Forty-plus jurisdictions covering approximately 60% of global market capitalisation, 60% of global GDP, and 40%+ of global greenhouse gas emissions. Latest additions: Ethiopia and Peru (Feb 2026).
IFRS Foundation · ISSB Update · April 2026
KPMG, PwC, Deloitte, and EY implementation studies converge on this range for a mid-cap listed company to build the data infrastructure, materiality assessment, quantitative scenario analysis, and disclosure drafting needed.
KPMG · CP26/5 implementation analysis
Four originally proposed plus additional final-version changes: paragraph B59A added, effective dates removed, ISSB December 2025 amendments incorporated.
Government Response · Chapters 1–2
The FRC's UK adaptation of the IAASB international sustainability assurance standard. Covers both limited and reasonable assurance, applicable regardless of underlying reporting framework.
FRC · ISSA (UK) 5000
Implementation Roadmap
How long UK SRS S2 implementation actually takes
Companies waiting for the FCA Policy Statement to begin preparation are already late. Practitioner consensus puts end-to-end implementation at twelve to eighteen months — driven by Scope 3 data, which can't be compressed.
Last verified 12 May 2026 · Click any workstream for detail
From kickoff to first UK SRS S2 report. Driven by Scope 3 supplier engagement and quantitative scenario modelling — neither compressible.
Of Scope 3 data work — from supplier engagement onset through validation. Of the 15 GHG Protocol categories, Category 1 and Category 11 typically account for >70% of total Scope 3 emissions.
Foundation phase before data work meaningfully begins. Materiality assessment and gap analysis are pre-requisites — running data collection without these creates wasted effort.
Implementation Timeline
UK SRS S1 & S2 Published
Department for Business and Trade publishes final UK Sustainability Reporting Standards
FCA Final Rules Expected
Financial Conduct Authority expected to publish final mandatory sustainability disclosure rules
UK SRS S2 Mandatory
Climate-related disclosures become mandatory for approximately 500 UK-listed companies
Scope 3 Full Requirements
End of Scope 3 carve-out period - full Scope 3 emissions reporting required
UK SRS S1 Mandatory
General sustainability disclosures become mandatory (comply-or-explain basis)
Essential Guidance
Who Must Comply?
Comprehensive scope guide for UK SRS requirements. Understand if your company falls within the proposed mandatory scope.
Critical DatesImplementation Timeline
Key deadlines and milestones from now until full implementation. Plan your preparation with our detailed timeline.
PreparationCompliance Roadmap
Step-by-step implementation guide with practical checklists. From materiality assessment to first report.
UK SRS S2 Guide
Complete guide to climate-related disclosures. Scope 1, 2, and 3 emissions, scenario analysis, transition plans.
General StandardUK SRS S1 Overview
General sustainability matters beyond climate. Biodiversity, human capital, supply chain impacts.
VerificationAssurance Requirements
Limited and reasonable assurance requirements. Working with auditors and assurance providers.