Framework Comparison

SECR vs UK SRS 2026

How SECR interacts with new UK Sustainability Reporting Standards: scope differences, timeline, transition planning, and what this means for different company types.

Independent UK SRS Reference

Current Position (2026)

SECR Scope Assessment
Do I need to comply with SECR?
What type of organisation are you?

SECR Status

UK SRS Status

Both frameworks active in 2026

SECR remains fully in force while UK SRS exists as voluntary standards. No organisations are yet subject to mandatory UK SRS, but this is expected to change from 2027 onwards.

Proposed Changes from 2027

UK SRS S2 Mandatory Implementation

FCA CP26/5 proposes UK SRS S2 is proposed to become mandatory from 2027 for:

SECR Continues Unchanged

≈11,900
Organisations subject to SECR
≈515
Listed companies proposed for UK SRS S2

Scope Comparison

SECR Scope

CategoryCriteriaEstimated Number
Quoted companiesAll UK-incorporated listed companies~1,400
Large unquoted companiesMeet 2 of 3 size tests~9,500
Large LLPsMeet 2 of 3 size tests~1,000
Total SECR scope~11,900

UK SRS S2 Scope (Proposed from 2027)

CategoryCriteriaEstimated Number
Premium-listedMain Market listing~300-400
Standard-listedSubject to final FCA policy~100-200
Total UK SRS scope~515

Key Differences

Requirements Comparison

SECR Requirements (Current)

  1. UK energy consumption (kWh)
  2. Scope 1 emissions (tCO₂e)
  3. Scope 2 emissions (tCO₂e)
  4. Intensity ratio (emissions per business metric)
  5. Methodology description
  6. Energy efficiency actions
  7. Prior year comparatives

UK SRS S2 Requirements (Climate Standard)

  1. Governance — oversight of climate risks and opportunities
  2. Strategy — climate risks/opportunities and business impact
  3. Risk Management — climate risk identification and management
  4. Metrics and Targets — performance measurement including:
    • Scope 1, 2, and 3 emissions
    • Climate-related metrics
    • Progress against targets

Coverage Overlap

What This Means for Different Company Types

Quoted Companies (Listed)

Current (2026):

From 2027:

Recommendation: Start UK SRS S2 preparation during 2026 to enable 2027 compliance

Large Unquoted Companies

Current (2026):

From 2027 onwards:

Recommendation: Monitor customer ESG requirements and consider voluntary UK SRS adoption

Large LLPs

Current (2026):

From 2027 onwards:

Recommendation: Focus on SECR compliance, monitor professional service client demands

Government review of interaction planned

The government committed to "consider how the SECR requirements interact with UK SRS with a view to reducing unnecessary duplication where possible". This is a review commitment, not a phase-out announcement.

Transition Planning Considerations

For Quoted Companies

  1. Immediate (2026): Continue SECR compliance as normal
  2. Preparation phase: Begin UK SRS S2 gap analysis and data system preparation
  3. 2027 readiness: Establish processes for comprehensive climate disclosure
  4. Efficiency planning: Identify overlapping data collection and reporting processes

For Large Unquoted Companies/LLPs

  1. Core focus: Maintain robust SECR compliance systems
  2. Market monitoring: Track customer/supply chain ESG requirements
  3. Voluntary consideration: Assess business case for UK SRS adoption
  4. Future-proofing: Build SECR systems with potential UK SRS expansion in mind

Timeline Summary

DateEventImpact
1 April 2019SECR introduced~11,900 organisations in scope
25 February 2026UK SRS publishedVoluntary framework available
1 January 2027UK SRS S2 proposed mandatory~515 listed companies affected
Future TBDSECR-UK SRS reviewPotential scope/requirement changes

Key Differences Summary

AspectSECRUK SRS S2
Status (2026)MandatoryVoluntary
Scope11,900 organisations515 listed companies (proposed)
CoverageEnergy + basic emissionsComprehensive climate framework
Scope 3Not requiredRequired
GovernanceNot requiredRequired
StrategyNot requiredRequired
FilingPart of annual accountsSeparate sustainability report

The relationship between SECR and UK SRS is evolving. While SECR remains the primary mandatory framework for most organisations, quoted companies should prepare for dual compliance from 2027. The promised government review may bring changes, but SECR itself remains firmly in place as the UK's primary corporate climate disclosure requirement.

Last verified 11 May 2026Reviewed editorially

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