Everything you need to know about the uk tax year, including important dates, deadlines, and how to stay compliant with hmrc requirements. This filing deadline is brought forward to 31 october after the end of the. Do you know when you're tax is due?
The deadline for earlier tax returns has passed and you may have to pay a penalty. The deadline for doing your tax return for the tax year running from 6 april 2024 to 5 april 2025 is 31 january. The uk 2025/26 tax year starts on april 6, 2025, and ends on april 5, 2026.
See important tax year 2025/26 dates, thresholds and updates for uk businesses. Tax returns must be filed, and all outstanding tax paid, by 31 january following the end of the tax year. A new tax year starts on 6 april, marking the start of the financial period for which individuals and businesses must report their. Key deadlines include online self assessment on january 31, 2026, and corporation tax by april.
When does the uk tax year start and end? Filing deadlines, payments on account, refunds, penalties, and who must file—clear and. The tax year in the uk begins and ends in april for individuals. The last tax year started on 6 april 2024 and ended on 5 april 2025.
Learn what’s changing and how to stay compliant.