UK SRS Implementation Guide
Complete implementation roadmap for UK Sustainability Reporting StandardsS1 and S2. Expert guidance for companies preparing for FCA's proposed mandatory requirements from 2027.
12-18 Months
Typical implementation timeline
S1 & S2
Both standards required
Assurance Ready
External verification preparation
ISSB Aligned
Global standard compatibility
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
UK SRS Current Status & Implementation Context
Regulatory Timeline & Framework
UK SRS were published by DBT on 25 February 2026, marking a significant milestone in UK sustainability reporting. The standards are currently available for voluntary early adoption, withFCA's CP26/5 consultation proposing mandatory application from 1 January 2027for listed companies, subject to final policy statement expected autumn 2026.
Implementation Benefits
- Early mover advantage in sustainability disclosure
- Enhanced investor and stakeholder confidence
- Alignment with global ISSB standards
- Preparation for potential mandatory requirements
Standard Components
- UK SRS S1: General Requirements for sustainability-related disclosures
- UK SRS S2: Climate-related Disclosures aligned with TCFD framework
- UK-specific guidance for enhanced Scope 3 and financed emissions
- Integration with UK Transition Plan Taskforce recommendations
UK SRS Implementation Phases
Phase 1: Gap Analysis & Readiness Assessment (Months 1-3)
Begin with comprehensive assessment against IFRS S1 general requirementsand IFRS S2 climate-related disclosures, adapted for UK-specific requirements under the published UK SRS framework.
S1 Assessment Areas
- Governance: Board oversight and management accountability for sustainability matters
- Strategy: Integration of sustainability risks and opportunities in business model
- Risk Management: Sustainability risk identification and management processes per PRA guidelines
- Metrics & Targets: Industry-specific sustainability metrics and performance indicators
S2 Climate Assessment
- Transition Risks: Policy, technology, market, and reputation risks aligned with TCFD categories
- Physical Risks: Acute and chronic climate-related physical risks per IPCC assessments
- Climate Opportunities: Resource efficiency, energy sources, and market opportunities
- GHG Emissions: Current Scope 1, 2, and 3 measurement capabilities per GHG Protocol Scope 3 Standard
Phase 2: Data Infrastructure Development (Months 4-9)
Establish robust data collection and management systems meeting the precision requirements ofIAASB assurance standardsand aligned with GHG Protocol Corporate Standard methodologies.
Scope 1 & 2 Emissions
- • Direct fuel combustion monitoring
- • Electricity consumption tracking
- • Mobile source emissions
- • Purchased heat and steam
Scope 3 Value Chain
- • Supplier emission factors
- • Product lifecycle assessments
- • Business travel and commuting
- • Downstream use of products
Financial Integration
- • ESG-financial data alignment
- • Cost of capital impacts
- • Climate-related costs
- • Investment decision metrics
Data Quality Requirements
UK SRS implementation requires data quality controls equivalent to financial reporting standards.FRC Corporate Reporting Council guidanceemphasizes accuracy, completeness, and verifiability of sustainability information to meet investor decision-making needs.
Phase 3: Governance & Control Implementation (Months 6-12)
Develop governance structures meeting FCA climate governance expectations and UK Corporate Governance Codeprinciples for sustainability oversight and accountability.
Board & Executive Level
- Board committee with sustainability expertise and UK SRS oversight responsibility
- Chief Sustainability Officer or equivalent executive accountability
- Regular board reporting on sustainability risks and UK SRS compliance progress
- Integration of sustainability performance in executive compensation
Operational Controls
- Three lines of defense model for sustainability data controls
- Internal audit coverage of UK SRS data and disclosure processes
- Risk management integration with enterprise risk frameworks
- Regular control effectiveness testing and validation procedures
UK SRS Implementation Checklist
Essential Implementation Steps
Immediate Actions (Months 1-3)
- Download and review official UK SRS standards
- Assess current reporting against S1 and S2 requirements
- Identify data gaps and collection requirements
- Determine materiality assessment scope and methodology
- Establish project governance and resource allocation
Medium-term Actions (Months 4-9)
- Implement data collection systems and controls
- Conduct scenario analysis per IPCC methodologies
- Develop transition plan aligned with UK TPT framework
- Train finance and sustainability teams on UK SRS requirements
- Select and engage external assurance providers
Start Your UK SRS Implementation
Expert guidance for UK SRS implementation. Begin your sustainability reporting journey with confidence and comprehensive support.