MTD Penalty Points: Why One Late Update Isn't a Fine

If you've heard that missing a Making Tax Digital deadline means an instant fine, you can relax a little. That's not how it works. HMRC has built a points-based system, and one slip on its own costs you nothing in cash. You'd have to miss several deadlines before any money changes hands.

Here's the plain-English version, with a worked example so you can see exactly how someone would actually end up paying £200, and how easily most people avoid it.

One late update = one point, not a fine

Under MTD for Income Tax, you send HMRC four quarterly updates a year plus one tax return after the year ends. When one of those quarterly updates goes in late, you pick up a single penalty point. No money is charged for that point by itself.

Think of it like points on a driving licence. One point is a warning marker sitting on your record. It's only when the points build up to a set threshold that a penalty lands.

For quarterly updates, that threshold is four points. Reach four, and HMRC charges a flat £200. You can read the official version on GOV.UK's MTD penalties guidance.

So a landlord who files three quarters on time and one a few days late has one point and owes nothing. That single point is a nudge, not a bill.

The four quarterly deadlines

The standard quarterly periods end on 5 July, 5 October, 5 January and 5 April. The updates themselves are due on:

• 7 August
• 7 November
• 7 February
• 7 May

Miss one of those and you earn a point. To hit £200 you'd need to be late on all four in a way that stacks up. More on that below. If you want the full picture of dates, we've laid them out in our guide to MTD deadlines.

Late filing and late paying are two different things

This trips people up, so it's worth being clear. Your quarterly updates don't carry a tax payment. They're just figures. Because there's no money due with them, a late update can't trigger interest or a late-payment penalty. All it does is add a point.

Interest and late-payment penalties attach to actual payment deadlines, and for most landlords that's 31 January following the tax year, the same date Self Assessment always used. That's when your tax is due.

So the two systems run on separate tracks. Late submission points sit on one side. Late payment consequences sit on the other. Missing a quarterly update never puts your tax bill into late-payment territory.

Points don't stay forever

Penalty points expire after 24 months, as long as you stay under the threshold. So an old point from a bad month eventually drops off your record if you keep your filing tidy afterwards.

And if you do reach four points and pay the £200, you're not stuck at the threshold forever. A sustained run of on-time filing resets your record back to zero. HMRC isn't trying to trap you. The whole design rewards getting back on track.

One more thing worth knowing: each taxpayer has their own points record. If you own a property jointly, you and the other owner have completely separate records. One person's late update doesn't touch the other's.

A worked example: how Katie reached £200

Katie has one rental flat, with gross rent over £50,000, so she's in MTD from April 2026. She's not deliberately dodging anything. Life just kept getting in the way.

• 7 August: she's away and forgets the first update. That's her first point.
• 7 November: a busy autumn, the deadline slides past again. Second point.
• 7 February: she means to do it after Christmas and doesn't. Third point.
• 7 May: the fourth update goes in late too. That's her fourth point, and HMRC charges £200.

Four separate missed quarters across a full year is what it took. Not one bad week. Katie didn't owe a penny in penalties after the first three; the charge only appeared when the fourth point pushed her to the threshold.

Now rewind. Suppose Katie had reminders set. Each deadline gives a prompt a week or two ahead. She logs in, checks her cumulative figures, files in a few minutes. Zero points, zero pounds. The difference between £200 and nothing was four calendar reminders.

First year and voluntary sign-ups

Two softer edges are worth mentioning. If you join MTD voluntarily before you're required to, you're not charged late-submission penalties in your first year. And if you're exempt from MTD, no MTD late-submission penalties can arise at all, because you're not in the system yet.

The honest takeaway

The points system sounds intimidating until you see the shape of it. One late update is a warning, not a fine. You'd have to miss four quarters before any money is charged, and even then it's a single £200, not a spiralling bill. Points fade after two years, and good habits reset the whole thing.

The surest way to never see a point is to file on the day the reminder lands. That's really all it takes. Software like Quarterwise keeps your records as you go and sends deadline reminders, so filing each quarter is a quick job rather than a scramble. If you're weighing up whether to handle it yourself or bring in help, our guide on using MTD software with an accountant walks through both.

This is general information, not tax advice. Please check your own situation with HMRC or a qualified accountant.