When are MTD ITSA quarterly updates due?

The standard quarterly update deadlines for MTD ITSA and what each update needs to include.

By AccountsDesk Published 22 October 2026 1 min read

faq deadlines

With the standard tax year (6 April to 5 April), quarterly updates are due by:

Quarter	Period	Deadline
1	6 April to 5 July	7 August
2	6 July to 5 October	7 November
3	6 October to 5 January	7 February
4	6 January to 5 April	7 May

HMRC also allows calendar quarter dates if you choose that option. Always confirm your exact dates in your HMRC account or in the AccountsDesk ITSA dashboard, which shows your obligations as reported by HMRC.