SECR Deadline Guide

SECR Deadline for August Year-End Companies

Companies with a August financial year-end must file their SECR report by 31 May.

Filing Deadline31 May
Days to File273
Penalty From1 June

Penalty Information

Penalties from 1 June. Initial fines £150+

Key Considerations

  • May filing deadline after spring bank holiday
  • Summer year-end captures air conditioning loads
  • Popular for retail businesses with summer peaks

Preparation Timeline

February

Collect energy data

March

Calculate emissions and ratios

April

Prepare narrative

May

File with Companies House

Common Mistakes to Avoid

  • Underestimating summer cooling energy impact
  • Bank holiday weekend reduces filing time in May
  • Not accounting for seasonal business variations

Need Help Meeting Your Deadline?

ComplyCarbon generates SECR reports in 10 minutes. Don't risk late filing penalties— get your report done early.

Generate Your Report Now →

Other Deadline Dates