What is the Self Assessment deadline for 2025-26?
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What is the Self Assessment deadline for 2025-26? The online deadline for your 2025-26 tax return is 31 January 2027, and any tax owed is due the same day. Paper returns must reach HMRC by 31 October 2026. Online by 11:59pm on 31 January 2027. A paper return must reach HMRC by 11:59pm on 31 October 2026. By 11:59pm on 31 January 2027. If payments on account apply, your first payment towards 2026-27 is due the same day and the second by 31 July 2027. You get a £100 penalty straight away, even if you owe no tax. After 3 months, £10 a day is added for up to 90 days, and there are further penalties at 6 and 12 months. Read the full answer, with every source, at rightotax.co.uk.
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Read the full answer, with every source
The one-minute version
Transcript
What is the Self Assessment deadline for 2025-26? The online deadline for your 2025-26 tax return is 31 January 2027, and any tax owed is due the same day. Paper returns must reach HMRC by 31 October 2026. Online by 11:59pm on 31 January 2027. A paper return must reach HMRC by 11:59pm on 31 October 2026. Read the full answer, with every source, at rightotax.co.uk.
Voice and visuals made with automated software, including AI.
This is general information to help you understand the rules. It isn't tailored to your circumstances, so check your own position before acting on it.
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