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UK Self Assessment and Making Tax Digital deadlines

  • Free, no sign-up for the result
  • Sources on GOV.UK

Rates last checked 12 October 2026 against GOV.UK

The next Making Tax Digital for Income Tax deadline is 7 November 2026: MTD quarterly update Q2 (6 July to 5 October).

Self Assessment dates still to come

  • : Online tax return, balancing payment and first payment on account

    Online 2025/26 return, any tax owed for 2025/26, and the first payment on account for 2026/27.

  • : Second payment on account

    The second payment on account for 2026/27.

Making Tax Digital for Income Tax

Making Tax Digital for Income Tax applies to you from 6 April 2026.

  • : MTD quarterly update Q2 (6 July to 5 October)

    Quarterly update under Making Tax Digital for Income Tax for 6 July to 5 October, for qualifying income over £50,000.

  • : MTD quarterly update Q3 (6 October to 5 January)

    Quarterly update under Making Tax Digital for Income Tax for 6 October to 5 January, for qualifying income over £50,000.

  • : MTD quarterly update Q4 (6 January to 5 April)

    Quarterly update under Making Tax Digital for Income Tax for 6 January to 5 April, for qualifying income over £50,000.

  • : MTD final 2026/27 tax return

    The 2026/27 return under Making Tax Digital, for qualifying income over £50,000.

Rates for the 2026/27 tax year from GOV.UK. Check HMRC guidance for your circumstances.

Good to know

  • Dates are for the 2025/26 tax year return and 2026/27 payments on account.
  • Past dates drop off this list automatically.
  • Making Tax Digital for Income Tax is a separate calendar from the Self Assessment dates above. The quarterly dates shown are for qualifying income over £50,000.

This is general information, not tax advice. Accounter does not file tax returns for you. Check GOV.UK for your own circumstances.

Plan your tax bill

Sources: GOV.UK: Self Assessment tax returns deadlines, GOV.UK: Use Making Tax Digital for Income Tax and GOV.UK: Find out if and when you need to use Making Tax Digital for Income Tax. Last checked 12 October 2026.