Deadline for Income Tax Return 2025–2026: UK Filing Guide
Quick Answer If HMRC requires you to file a Self Assessment tax return, you must submit: Paper return deadline: 31 October 2025 Online return deadline: 31 January 2026 Payment deadline: 31 January 2026 You need to file if you earn over £1,000 from self-employment, receive untaxed income, or earn over £60,000 while claiming Child Benefit.

