SECR Deadline Guide
SECR Deadline for March Year-End Companies
Companies with a March financial year-end must file their SECR report by 31 December.
Filing Deadline31 December
Days to File270
Penalty From1 January
Penalty Information
Late filing penalties begin immediately after 31 December. Fines range from £150 to £1,500 depending on company size and delay duration.
Key Considerations
- March year-end is the most common for UK companies
- Christmas/New Year period can affect preparation time
- Ensure energy data collection is complete by early November
- Coordinate with accountants for integrated filing
Preparation Timeline
September
Begin collecting energy consumption data for the year
October
Calculate Scope 1 and 2 emissions using conversion factors
November
Prepare energy efficiency narrative and select intensity ratio
December
Finalise SECR disclosures and submit with annual accounts
Common Mistakes to Avoid
- Leaving data collection too late
- Using outdated conversion factors
- Forgetting to include energy efficiency actions narrative
- Not coordinating with company secretary on filing
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April year-endDue: 31 JanuaryMay year-endDue: 28 FebruaryJune year-endDue: 31 MarchJuly year-endDue: 30 AprilAugust year-endDue: 31 MaySeptember year-endDue: 30 JuneOctober year-endDue: 31 JulyNovember year-endDue: 31 AugustDecember year-endDue: 30 SeptemberJanuary year-endDue: 31 OctoberFebruary year-endDue: 30 November