How accurate do MTD quarterly updates need to be?

If you’re a sole trader or landlord who’s newly signed up for Making Tax Digital (MTD) for Income Tax , filing quarterly updates to HMRC is one of the big changes in store for you. If you have qualifying income over £50,000 from a sole trade or property, your first quarterly update is due by 7th August 2026 . One of the important things to be clear about is that quarterly updates are not the same