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Campaign reporting deadlines

The date by which you must report to us depends on how much you spent on your campaign. The deadlines are shown below.1

Campaign expenditure of £250K or below Campaign expenditure of over £250K
Report within three months of the election Report within six months of the election
Friday 7 August 2026Saturday 7 November 2026

You may be liable for a penalty if you don’t submit your return on time.

If your campaign expenditure is over £250k you must include an independent auditor’s report.2

For more information see this document:

Last updated: 4 September 2025