Tax deadlines
Every date that matters, before it matters.
The UK tax deadlines coming up for individuals, landlords, sole traders and employers. Clients get a reminder from us before each one — or add any date to your own calendar.
2026
- Add to calendar: Paper self assessment returns for 2025/26
Paper self assessment returns for 2025/26
Anyone who files a self assessment return · Most people file online instead
Self assessment - Add to calendar: MTD for Income Tax — quarter 2 update
MTD for Income Tax — quarter 2 update
Sole traders and landlords in MTD for Income Tax · Period 6 Jul – 5 Oct
MTD for Income Tax
2027
- Add to calendar: Online self assessment return and tax payment
Online self assessment return and tax payment
Anyone who files a self assessment return · The big one — book early
Self assessment - Add to calendar: MTD for Income Tax — quarter 3 update
MTD for Income Tax — quarter 3 update
Sole traders and landlords in MTD for Income Tax · Period 6 Oct – 5 Jan
MTD for Income Tax - Add to calendar: MTD for Income Tax — quarter 4 update
MTD for Income Tax — quarter 4 update
Sole traders and landlords in MTD for Income Tax · Period 6 Jan – 5 Apr
MTD for Income Tax - Add to calendar: Give employees their P60s
- Add to calendar: P11D and P11D(b) for benefits in kind
- Add to calendar: Second payment on account
Second payment on account
Anyone who files a self assessment return · Towards your 2026/27 tax bill
Self assessment - Add to calendar: MTD for Income Tax — quarter 1 update
MTD for Income Tax — quarter 1 update
Sole traders and landlords in MTD for Income Tax · Period 6 Apr – 5 Jul
MTD for Income Tax - Add to calendar: Register for self assessment if you're newly self-employed
Register for self assessment if you're newly self-employed
Anyone who files a self assessment return · For income in the 2026/27 tax year
Self-employment tax - Add to calendar: Paper self assessment returns for 2026/27
Paper self assessment returns for 2026/27
Anyone who files a self assessment return · Most people file online instead
Self assessment - Add to calendar: MTD for Income Tax — quarter 2 update
MTD for Income Tax — quarter 2 update
Sole traders and landlords in MTD for Income Tax · Period 6 Jul – 5 Oct
MTD for Income Tax
2028
- Add to calendar: Online self assessment return and tax payment
Online self assessment return and tax payment
Anyone who files a self assessment return · Includes your first MTD year-end return
Self assessment
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