When is the UK SRS deadline?

UK SRS reporting becomes mandatory for accounting periods starting on or after 1 January 2026. This means companies with calendar year-ends will first report for 2026, while those with March year-ends will report for 2026-27.

Which companies must comply with UK SRS by the deadline?

UK-listed companies with over 750 employees and financial institutions must comply with UK SRS from accounting periods starting 1 January 2026. Smaller listed companies may have extended deadlines.

What are the key UK SRS implementation milestones?

Key milestones include: Q2 2026 - Gap analysis and readiness assessment following standards publication, Q3-Q4 2026 - Data collection systems setup, Q1 2027 - Trial reporting run, Q3 2027 - First mandatory reporting period begins.

UK SRS Report

MANDATORY FROM 1 JANUARY 2026

UK SRS Deadline & Implementation Timeline

The UK SRS deadline is approaching fast. UK Sustainability Reporting Standards become mandatory for qualifying companies from accounting periods starting 1 January 2026. Here's everything you need to know about UK SRS deadlines, implementation timelines, and preparation requirements.

Critical UK SRS Deadline Dates

Primary Deadline

1 January 2026

Accounting periods starting on or after this date must comply with UK SRS

First Reports Due

Early 2027

First UK SRS-compliant annual reports published

Important Note on Year-Ends

December year-end companies: First UK SRS report for year ending 31 December 2026
March year-end companies: First UK SRS report for year ending 31 March 2027
Other year-ends: Apply from first accounting period starting after 1 January 2026

UK SRS Implementation Timeline 2025-2027

Q1 2025: Assessment Phase

Gap analysis, materiality assessment, and readiness review

• Identify reporting gaps against UK SRS S1 & S2
• Assess data collection capabilities
• Determine resource requirements

Q2-Q3 2025: Preparation Phase

System implementation and process development

• Install UK SRS reporting systems
• Develop data collection processes
• Train reporting teams

Q4 2025: Trial Run Phase

Dry run of UK SRS reporting process

• Complete trial UK SRS report
• Internal review and validation
• Refine processes and controls

1 January 2026: Compliance Begins

Mandatory UK SRS reporting period starts

• Begin collecting data for UK SRS report
• Implement ongoing monitoring
• Ensure compliance with all requirements

2027: First Reports Published

Publication of first UK SRS-compliant annual reports

• Publish UK SRS disclosures
• External assurance completed
• Stakeholder communication

Who Must Meet the UK SRS Deadline?

Mandatory from 1 January 2026

UK-listed companies with 750+ employees
Banks and building societies
Insurance companies
Large LLPs and co-operatives

Potential Future Expansion

Smaller listed companies (post-2027)
Large private companies
Public sector organisations
Supply chain requirements

Early Adoption Encouraged

While the UK SRS deadline is 1 January 2026, the FRC and government encourage early adoption. Companies can voluntarily apply UK SRS before the mandatory deadline to gain experience and demonstrate leadership in sustainability reporting.

UK SRS Deadline Preparation Checklist

Immediate Actions (Q1 2025)

Confirm UK SRS applicability to your organisation
Conduct gap analysis against S1 & S2
Assess current reporting capabilities
Identify data gaps and requirements

Pre-Deadline Actions (2025)

Implement UK SRS reporting systems
Train finance and sustainability teams
Establish governance structures
Complete trial reporting run

Get UK SRS Deadline Support View Full Compliance Guide