UK SRS requirements — ESG reporting for UK companies

Requirements Overview

UK SRS establishes comprehensive ESG reporting requirements for approximately 500 UK listed companies under 1 FCA CP26/5 proposals.
This represents the most significant expansion of UK sustainability disclosure obligations since 12 TCFD implementation.

Requirements build on 2 DBT final standards published 25 February 2026.
CP26/5 proposes a mandatory framework for S2 climate disclosures from 1 January 2027 — subject to the Policy Statement expected autumn 2026 — with broader S1 sustainability topics on a comply-or-explain basis.

Implementation framework provides proportionate approach recognizing current market capabilities while establishing clear pathway toward comprehensive sustainability disclosure.
This is aligned with 13 international best practice through systematic implementation planning and phased approach.

ESG reporting requirements address market demand for standardized sustainability disclosure while providing practical implementation pathway that builds on existing 4 TCFD foundations and current corporate reporting capabilities through phased implementation approach.

UK SRS requirements sit across two standards. UK SRS S1 covers general sustainability-related disclosures — the entity’s material sustainability risks and opportunities. UK SRS S2 covers climate-related disclosures specifically. Both adopt the four-pillar TCFD architecture and demand connectivity between sustainability information and the financial statements.

Mandatory UK SRS requirements apply through the FCA’s proposed mandatory regime for around 500 UK-listed companies (UK SRS who is in scope) from accounting periods beginning on or after 1 January 2027. For the qualification numbers used in any future scope expansion, see UK SRS thresholds.

UK SRS requirements — governancePillar 1

Board-level oversight of climate and sustainability risks and opportunities. Identifies the board committee responsible, the management roles accountable, and how sustainability information flows to the board.

UK SRS requirements — strategyPillar 2

How sustainability risks and opportunities affect business model, strategy and financial planning. UK SRS S2 demands explicit transition-plan disclosure and the use of climate-related scenario analysis to test resilience.

UK SRS requirements — risk managementPillar 3

Process for identifying, assessing, prioritising and monitoring sustainability-related risks. Must explain how these processes integrate with the entity-wide risk management framework rather than sit alongside it.

UK SRS requirements — metrics and targetsPillar 4

Scope 1, Scope 2 and material Scope 15-category Scope 3 emissions, plus cross-industry metrics (climate-related capital deployed, internal carbon prices, executive remuneration links) and industry-specific metrics from the SASB-derived industry guidance.

UK SRS requirements — connectivityCross-pillar

UK SRS requires sustainability disclosures to be connected to the financial statements — same reporting entity, same reporting period, and explanation of any assumption differences. This is a UK SRS-specific amendment built on IFRS S1.

Scope and Application

UK SRS requirements apply to companies with securities admitted to trading on a UK regulated market under 5 UK Listing Rules categories 6, 16, and 22, covering approximately 500 entities across major UK exchanges.

Scope includes premium listed companies, standard listed companies with significant market presence, and closed-ended investment funds with sustainability-focused mandates following established FCA regulatory perimeter.

Application determined by listing category rather than size-based thresholds, ensuring comprehensive coverage of UK capital market participants with systematic approach to sustainability disclosure requirements.

Inclusion Criteria

Listed companies must comply with UK SRS requirements regardless of size, sector, or current sustainability reporting maturity, reflecting FCA approach to comprehensive capital market coverage rather than graduated implementation based on company characteristics.

Foreign companies with UK listings subject to same requirements as domestic entities, ensuring level playing field and consistent disclosure standards across all market participants through unified compliance framework.

Requirements apply at entity level with consolidation requirements following established financial reporting principles for group structures and subsidiary relationships.

Exemptions and Reliefs

Limited exemptions available only where companies are subject to equivalent disclosure requirements under other regulatory frameworks, with FCA maintaining comprehensive coverage principle to ensure market transparency and investor protection.

Transitional relief provisions include first-year Scope 3 comply-or-explain for climate emissions and graduated implementation timeline allowing systematic capability development through structured readiness assessment and preparation programmes.

Core ESG Reporting Requirements

UK SRS establishes comprehensive requirements across environmental, social and governance dimensions, with the FCA proposing S2 climate-related financial disclosures as the mandatory foundation from 1 January 2027 (subject to the Policy Statement on CP26/5, expected autumn 2026).

Requirements structured around four-pillar framework covering governance arrangements, strategic integration, risk management processes, and metrics and targets with clear disclosure obligations and implementation guidance.

Core requirements designed to provide investors with decision-useful information about sustainability risks and opportunities affecting company value creation and long-term resilience.

Climate Disclosure Requirements (S2)

Proposed mandatory from January 2027 covering comprehensive climate-related financial disclosures building on enhanced TCFD framework with specific UK adaptations.

Climate requirements include governance arrangements with board oversight and management accountability, strategic integration showing climate risks and opportunities affecting business model and strategy, risk management processes for identifying and managing climate risks, and metrics including GHG emissions across all scopes with climate targets and transition planning.

Implementation supported by detailed technical guidance covering calculation methodologies, scenario analysis requirements, and assurance expectations through systematic approach.

GHG Emissions Requirements

Mandatory measurement and disclosure of greenhouse gas emissions across 6 Scope 1 (direct emissions), Scope 2 (electricity consumption), and Scope 3 (value chain emissions) following GHG Protocol standards with third-party verification requirements.

Scope 3 comply-or-explain relief available for 2027 reporting year only, transitioning to full mandatory coverage from 2028 across all 15 value chain categories where material to business operations and impact assessment.

Emissions measurement requires systematic data collection capabilities and supplier engagement programmes supported by robust calculation methodologies and quality assurance processes through comprehensive capability development.

Climate Scenario Analysis

Required assessment of climate resilience using scenario analysis covering physical risks (acute and chronic climate impacts) and transition risks (policy, technology, market, and reputation changes) across multiple time horizons.

Scenario analysis must consider range of climate outcomes including 1.5°C, well-below 2°C, and higher temperature pathways using established climate scenarios from authoritative sources including 7 IPCC and 8 IEA Net Zero pathway.

Analysis requires quantitative assessment where feasible with qualitative description of key assumptions, limitations, and strategic implications for business model resilience and capital allocation decisions.

General Sustainability Requirements (S1)

Proposed comply-or-explain from January 2029 covering broader sustainability topics beyond climate including biodiversity, water scarcity, workforce conditions, supply chain labour, governance ethics, and human rights following materiality-based approach.

S1 requirements provide foundational framework for all sustainability disclosure with architectural concepts (materiality assessment, connectivity principles, value chain mapping) applying immediately to support effective S2 climate implementation from 2027.

General sustainability requirements build on established S1 technical guidance with proportionate implementation approach recognizing market development needs and capability building requirements.

Materiality Assessment Framework

Systematic identification and assessment of sustainability risks and opportunities using established materiality frameworks including 9 SASB industry standards and double materiality considerations where required by other UK regulation.

Materiality assessment considers enterprise value impacts (effects on cash flows, access to finance, cost of capital) with impact materiality assessment required only where mandated by separate regulatory requirements reflecting UK-specific approach to proportionate disclosure.

Assessment requires stakeholder engagement, industry peer analysis, and systematic review processes with documentation of methodology and conclusion rationale supporting disclosure decisions.

Value Chain Coverage

Comprehensive assessment of sustainability impacts and dependencies across value chain including upstream suppliers, downstream customers, and end-of-life considerations where material to sustainability risk and opportunity assessment.

Value chain requirements include supplier engagement programmes, due diligence processes, and systematic mapping of key sustainability risks across business relationships with particular attention to high-risk sectors and geographies.

Implementation supported by established due diligence frameworks and industry best practice guidance with proportionate approach recognizing complexity of global value chain assessment and management.

Governance and Oversight Requirements

Comprehensive governance requirements covering board oversight arrangements, management accountability structures, committee responsibilities, and expert appointment processes ensuring appropriate sustainability governance across all covered topics.

Governance framework must demonstrate clear accountability lines, regular board consideration of sustainability matters, appropriate expertise and training, and integration with overall corporate governance structures including audit and risk committee coordination.

Requirements align with 10 UK Corporate Governance Code principles while addressing specific sustainability governance needs through systematic approach to board capability and process enhancement.

Board Oversight

Board-level responsibility for sustainability governance including regular consideration of sustainability risks and opportunities, oversight of sustainability strategy and target setting, approval of major sustainability policies and commitments, and monitoring of implementation progress and performance.

Board oversight requires appropriate expertise through director appointment, training programmes, and advisory arrangements with external subject matter experts where needed to ensure informed decision-making across complex sustainability topics and regulatory requirements.

Documentation requirements include board papers, committee minutes, and governance framework descriptions demonstrating systematic approach to sustainability governance and decision-making processes.

Management Accountability

Clear management accountability structures including senior executive responsibility for sustainability implementation, performance management arrangements linking sustainability performance to executive compensation, and systematic reporting arrangements ensuring board oversight and stakeholder accountability.

Management structures must address sustainability across relevant business functions including strategy, risk management, operations, and finance with clear coordination arrangements and escalation processes for major sustainability decisions and performance issues.

Accountability framework requires regular management reporting, performance measurement systems, and capability development programmes ensuring systematic implementation across organization levels and business units.

Reporting and Filing Requirements

UK SRS disclosures required within annual reporting cycle aligned with financial reporting deadlines ensuring integrated consideration of sustainability and financial performance information for investor decision-making.

Filing requirements include incorporation within annual report and accounts or separate sustainability report filed simultaneously with annual report, with clear cross-referencing between documents and comprehensive coverage of all required disclosure elements.

Reporting timeline provides 18-month lead time from regulatory confirmation to first mandatory reporting year, allowing systematic preparation and capability development through structured implementation planning approach.

Assurance Requirements

Assurance requirements currently under development by 11 FRC with interim register for sustainability assurance practitioners expected mid-2026 providing oversight framework for quality and competence standards.

Initial assurance expectations likely to focus on GHG emissions data with graduated approach toward broader sustainability disclosures as market capability develops and professional standards mature through established assurance framework development.

Assurance planning should begin immediately given lead times for practitioner appointment, scope definition, and system preparation required for effective third-party verification of sustainability disclosures and underlying data systems.

Digital Reporting

Digital reporting requirements under consideration including structured data formats, taxonomies for sustainability disclosure elements, and machine-readable filing requirements aligned with broader regulatory technology adoption and market infrastructure development.

Digital requirements aim to enhance comparability, analysis capability, and regulatory oversight while reducing reporting burden through standardized disclosure formats and automated processing capabilities where appropriate for sustainability disclosure elements.

Implementation timeline for digital requirements expected to follow market readiness assessment with graduated introduction allowing systematic technology adoption and industry coordination across reporting ecosystem participants.

Compliance and Enforcement

Compliance monitoring and enforcement follow established FCA regulatory framework with proportionate approach recognizing market development phase and capability building requirements for comprehensive sustainability disclosure implementation.

Enforcement priorities likely to focus on completeness of disclosure, quality of governance arrangements, and reliability of quantitative metrics particularly for climate-related disclosures where measurement standards are well-established and verification methodologies proven.

Non-compliance consequences include regulatory action, market discipline through investor scrutiny, and potential impact on market access and cost of capital reflecting market expectations for comprehensive sustainability disclosure and regulatory compliance.

Market Monitoring

FCA market monitoring includes thematic review programmes, sample-based compliance assessment, and industry engagement activities ensuring systematic oversight of disclosure quality and market development progress.

Monitoring approach incorporates feedback from market participants including investors, companies, and assurance practitioners with regular consultation on implementation experience and regulatory effectiveness measures.

Market intelligence informs regulatory guidance updates, enforcement prioritization, and future policy development ensuring responsive regulatory framework aligned with market needs and international best practice developments.