Four dates a year. Miss them and it costs £200 a time.
Making Tax Digital for Income Tax replaced one annual return with four quarterly updates. The deadlines never move — but they are easy to forget, because nothing lands on your doormat to remind you.
Plus your Final Declaration each 31 January. Same pattern every year, for every income threshold.
The threshold is your turnover, not your profit
This is the part people get wrong, and they usually get it wrong in their own favour. Qualifying income means gross self-employment turnover plus gross rental receipts, added together, before you take a single expense off.
PAYE wages, pensions, dividends, savings interest and partnership profit share are all excluded. If you own a property jointly, only your share counts.
Check whether it applies to you
Free, and nothing you type here leaves your phone or computer. There is no account, no email box, and nothing is sent anywhere.
This checker runs entirely in your browser. It is general information about published HMRC thresholds, not tax advice, and it cannot account for every circumstance. Check your own position on GOV.UK or with an accountant.
What you get
- Every deadline for two tax years Four quarterly updates a year plus your Final Declaration, dated correctly for your threshold.
- A prep reminder two weeks before each one With a short checklist: reconcile the bank, categorise what is outstanding, check your software is still connected to HMRC.
- A final nudge three days out Including the one people forget — if you did not trade in a quarter, you still have to file a nil update.
- The traps written into the events themselves Cumulative reporting, separate updates per business, and what belongs in the Final Declaration rather than a quarterly update.
- Key dates that are not quarterly updates Your last old-style Self Assessment return, and the date the first-year penalty grace period ends.
- Six versions For each income threshold, in both standard tax-year quarters and calendar quarters. You pick the one that matches you.
It is a calendar subscription. You add it once and the dates sit alongside everything else in Google Calendar, Apple Calendar or Outlook. Nothing to open, nothing to check, no app to install.
Get the calendar
One payment. No subscription, no renewal, no account.
You choose your version on the next page and get setup instructions for Google, Apple and Outlook. Secure card payment via Stripe.
Questions
Is this tax advice?
No. It is a calendar of published deadlines with reminders attached. It does not tell you what to file, calculate anything, or give advice on your tax position. For that, speak to an accountant or check GOV.UK.
Does it submit anything to HMRC?
No. You still need HMRC-recognised software to send quarterly updates. This is a reminder system, not a filing tool. A spreadsheet plus bridging software is perfectly compliant — you do not need full accounting software.
What if HMRC changes the dates?
Because it is a subscription rather than a one-time file, your calendar updates itself when the hosted version changes. Every event also carries the date it was last verified, so you can always see how current it is.
I have two businesses and a rental property. Do I need three calendars?
No. The deadlines are the same regardless of how many updates you file. HMRC issues one penalty point per missed deadline, not one per update. The calendar reminds you how many you need to send.
Can I get a refund?
Yes — email hello@mtdcalendar.co.uk within 14 days and you will be refunded, no questions asked. See our terms for the detail.
Which version do I need — standard or calendar quarters?
Standard quarters run from 6 April and are the default. Calendar quarters run from 1 April and are an option you elect in your software before submitting your first update. If you have never heard of this choice, you want the standard version.