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.

Published February 2026 • Available for Voluntary Adoption

12-18 Months

Typical implementation timeline

S1 & S2

Both standards required

Assurance Ready

External verification preparation

ISSB Aligned

Global standard compatibility

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 PS21/23 climate governance expectationsand 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