UK tax calendar 2026/27 for small businesses

The key HMRC deadlines for 2026/27 — Self Assessment, payments on account, Making Tax Digital updates, PAYE, VAT and Corporation Tax.

DateWhat’s dueWho it applies to
31 Jan 2026Self Assessment online return for 2024/25, balancing payment, and first payment on account for 2025/26Sole traders, landlords, directors and others in Self Assessment
6 Apr 2026Start of the 2026/27 tax year. Making Tax Digital for Income Tax begins for sole traders and landlords with qualifying income over £50,000Sole traders and landlords
31 May 2026Give employees their P60 for 2025/26Employers
6 Jul 2026P11D and P11D(b) for 2025/26 benefits in kindEmployers providing benefits
31 Jul 2026Second payment on account for 2025/26Self Assessment taxpayers who make payments on account
7 Aug 2026First Making Tax Digital quarterly update for 2026/27Sole traders and landlords within MTD
5 Oct 2026Tell HMRC you need to file a Self Assessment return for 2025/26 (e.g. you started self-employment)Newly self-employed and new landlords
31 Oct 2026Paper Self Assessment return for 2025/26Those filing on paper
7 Nov 2026Second Making Tax Digital quarterly updateSole traders and landlords within MTD
31 Jan 2027Self Assessment online return for 2025/26, balancing payment, and first payment on account for 2026/27Self Assessment taxpayers
7 Feb 2027Third Making Tax Digital quarterly updateSole traders and landlords within MTD
7 May 2027Fourth Making Tax Digital quarterly updateSole traders and landlords within MTD

Recurring deadlines

  • PAYE: pay HMRC by the 22nd of each month if paying electronically (19th by post).
  • VAT: return and payment usually due 1 month and 7 days after the end of each VAT period.
  • Corporation Tax: payment due 9 months and 1 day after the end of the accounting period (most companies); the CT600 return within 12 months.
  • Companies House: a private company’s annual accounts within 9 months of its year end; a confirmation statement at least once a year.
Check your own dates. Company deadlines depend on your accounting year end, and HMRC can change MTD details — confirm on GOV.UK or with your accountant.

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