MTD quarterly deadline calculator
Pick a tax year and when your accounting year ends. You get every Making Tax Digital for Income Tax quarterly update period and deadline, a date to ask clients for their records, and a calendar file to add them all at once.
2026-27, standard update periods
| Quarter | Quarter period | The update covers | Ask clients by | HMRC deadline |
|---|---|---|---|---|
| 2026-27 Q1 | 6 Apr 2026 – 5 Jul 2026 | 6 Apr 2026 – 5 Jul 2026 | Tue 28 Jul 2026 | Fri 7 Aug 2026 |
| 2026-27 Q2 | 6 Jul 2026 – 5 Oct 2026 | 6 Apr 2026 – 5 Oct 2026 | Wed 28 Oct 2026 | Sat 7 Nov 2026 |
| 2026-27 Q3 | 6 Oct 2026 – 5 Jan 2027 | 6 Apr 2026 – 5 Jan 2027 | Thu 28 Jan 2027 | Sun 7 Feb 2027 |
| 2026-27 Q4 | 6 Jan 2027 – 5 Apr 2027 | 6 Apr 2026 – 5 Apr 2027 | Tue 27 Apr 2027 | Fri 7 May 2027 |
Tax return (final declaration) for 2026-27: 31 Jan 2028.
Download the calendar file (.ics) Works with Google Calendar, Outlook and Apple Calendar. Send it to clients so they see the dates too.
Want the next deadline on your own website? Free deadline widget. Clients joining in April 2027? Free client letter pack.
Standard or calendar periods?
Standard update periods follow the tax year (6 April to 5 April) and are the default. If your accounting period runs 1 April to 31 March, HMRC says to use calendar update periods. The deadlines are the same either way. Each update covers the tax year so far, so the third one covers 6 April to 5 January.
Source: GOV.UK, Use Making Tax Digital for Income Tax: send quarterly updates. For 2026-27, HMRC won't give penalty points for late quarterly updates; from 2027-28 it will (details).
Chase the records, not the dates
MTD Chase asks each client for their records on your "ask by" date from your AI assistant, reminds them on its own, and tells you who's still outstanding. Free for up to 5 clients. Connect MTD Chase