Keep track of every Making Tax Digital for Income Tax quarterly submission deadline and Final Declaration date. Use the interactive timeline below to see what’s due and when, then download the deadlines straight to your calendar.
MTD for Income Tax Self Assessment (MTD ITSA) rolls out in three phases based on qualifying income (gross self-employment + UK property income). Each phase adds quarterly digital updates via HMRC-compatible software, plus an annual Final Declaration replacing the current Self Assessment return.
For full details, see our MTD Income Tax guide or read about penalties for late submissions.
Add MTD Deadlines to Your Calendar
Select which tax years to include, then download a .ics file you can import into Outlook, Google Calendar, Apple Calendar, or any calendar application.
Soft-landing period: 2026/27 tax year
HMRC will not charge penalty points for late quarterly updates during the first year of MTD ITSA (2026/27). This gives taxpayers and agents time to adjust to the new reporting requirements. Source: GOV.UK
Tax Year 2026/27
Qualifying income exceeding £50,000
7 August 2026
Period: 6 April – 5 July 2026
Soft-landing — no penalty points7 November 2026
Period: 6 July – 5 October 2026
Soft-landing — no penalty points7 February 2027
Period: 6 October 2026 – 5 January 2027
Soft-landing — no penalty points7 May 2027
Period: 6 January – 5 April 2027
Soft-landing — no penalty points31 January 2028
Replaces the current Self Assessment tax return. Submit your finalised figures for the 2026/27 tax year to HMRC.
Tax Year 2027/28
Qualifying income exceeding £30,000
7 August 2027
Period: 6 April – 5 July 2027
7 November 2027
Period: 6 July – 5 October 2027
7 February 2028
Period: 6 October 2027 – 5 January 2028
7 May 2028
Period: 6 January – 5 April 2028
31 January 2029
Submit your finalised figures for the 2027/28 tax year to HMRC.
Tax Year 2028/29
Qualifying income of £20,000 or more
7 August 2028
Period: 6 April – 5 July 2028
7 November 2028
Period: 6 July – 5 October 2028
7 February 2029
Period: 6 October 2028 – 5 January 2029
7 May 2029
Period: 6 January – 5 April 2029
31 January 2030
Submit your finalised figures for the 2028/29 tax year to HMRC.
Late Submission Penalties
From 2027/28 onwards, HMRC will apply a points-based penalty system for late quarterly updates:
- Each late quarterly update adds 1 penalty point
- At 4 points, you receive a £200 penalty
- Points reset after 24 months of on-time submissions
During the 2026/27 soft-landing period, no penalty points are issued for the first four quarterly updates. For full details, see our penalties guide.
Quick Reference: All Deadlines at a Glance
| Tax Year | Q1 | Q2 | Q3 | Q4 | Final Declaration |
|---|---|---|---|---|---|
| 2026/27 Phase 1: > £50k | 7 Aug 2026 | 7 Nov 2026 | 7 Feb 2027 | 7 May 2027 | 31 Jan 2028 |
| 2027/28 Phase 2: > £30k | 7 Aug 2027 | 7 Nov 2027 | 7 Feb 2028 | 7 May 2028 | 31 Jan 2029 |
| 2028/29 Phase 3: ≥ £20k | 7 Aug 2028 | 7 Nov 2028 | 7 Feb 2029 | 7 May 2029 | 31 Jan 2030 |
Sources
This calendar is provided for general guidance only and does not constitute tax advice. While we make every effort to ensure accuracy, HMRC may update deadlines or requirements. Always confirm submission dates via GOV.UK. Jack Ross Chartered Accountants accepts no liability for reliance on this information.
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Need help with MTD?
Jack Ross Chartered Accountants can manage your quarterly submissions, set up compatible software, and ensure you never miss a deadline.
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