Help · Making Tax Digital

MTD quarters and filing with SUBMIT

Four quarterly updates a year, already assembled from your records — filed only when you type SUBMIT.

Check your quarters

  1. Open Making Tax Digital in the web app (app.subready.co.uk) or mobile app.
  2. Each quarter of the tax year shows a live status: in progress, ready to file, filed, or overdue — with its income and expense figures and deadlines.
  3. Or ask on WhatsApp — “which quarters are due?” — for the same live status in chat.

File a quarterly update

  1. When a quarter closes it becomes ready to file. Open it and review the figures — every number has a drill-down to the records behind it.
  2. Fix anything wrong at source first (an expense category, a missed paid date) — the quarter rebuilds automatically.
  3. Confirm by typing SUBMIT. Nothing is ever sent to HMRC without this explicit typed confirmation.
  4. The filed update is locked and archived under Submitted returns, with PDF/CSV downloads — your permanent proof of what was sent and when.

Who needs MTD, and when

Keep quarters accurate by habit, not heroics: receipts snapped when bought, statements uploaded monthly, payments recorded when they land. Do that and “ready to file” genuinely means ready.
Still stuck? Open a support ticket from Help inside the app (replies usually within 4 working hours), or just ask SubReady on WhatsApp — it answers product questions and reads your own numbers. See getting support.