You Missed Your First MTD Quarterly Update — Here’s What Actually Happens Next
What HMRC’s new penalty points system really means for the 7 August 2026 deadline (and why next year is different)
Short answer: If you missed the 7 August 2026 MTD quarterly update deadline, HMRC has confirmed it will not issue penalty points for late quarterly submissions during the 2026/27 tax year. You still need to file the missed update as soon as possible, and penalty points for a late final tax return or late payment still apply as normal — but a single missed quarterly update this year will not, on its own, trigger a fine.
Why This Matters Now
Making Tax Digital for Income Tax became mandatory on 6 April 2026 for self-employed people and landlords with qualifying income above £50,000. The first quarterly update — covering 6 April to 5 July 2026 for most taxpayers — was due by 7 August 2026. For over two million people newly pulled into digital quarterly reporting, that date came and went as their first real test of the system. Some met it comfortably. Others didn’t, and many of those are now assuming the worst.
What Business Owners Often Get Wrong
The mistake is treating the points system as already live for quarterly updates. HMRC has built in a transitional easement: for the 2026/27 tax year specifically, no penalty points are issued for missed quarterly update deadlines. This applies to the first group mandated into MTD — those with qualifying income above £50,000. The full points-based system for quarterly updates only takes effect from the 2027/28 tax year onwards.
What doesn’t get the same leniency: your final declaration. A late annual tax return still picks up a penalty point under the new rules, just as it always has under Self Assessment. And late payment of tax is treated entirely separately from late reporting — there, the clock starts ticking sooner than many expect.
The Rules in Practice
Missed quarterly update (2026/27 only): No penalty point, no fine — but the update must still be filed before you can submit your end-of-year final declaration.
Missed final declaration (due 31 January following the tax year): One penalty point, same as a late Self Assessment return has always attracted.
Late payment: No penalty if paid within 15 days of the due date; a 3% penalty applies from day 16; a further 3% plus 10% annual interest applies if still unpaid at day 31.
Record-keeping failure: A separate £3,000 penalty is available to HMRC where digital records aren’t kept properly, though it isn’t applied automatically.
Illustrative Example
Scenario: A landlord with £62,000 in qualifying rental income misses the 7 August 2026 deadline for her first quarterly update because her new software wasn’t set up in time.
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What happens: No penalty point is issued for the missed update. She submits it a fortnight late once her software access is sorted.
Why it matters: Had this been 2027/28, that same delay could have contributed to a points total that eventually triggers a £200 fine.
Practical lesson: The grace period is real, but it’s a one-year window — not a standing policy.
Common Mistakes
Mistake: Assuming no penalty this year means no urgency. Why it happens: The easement is widely reported without its time limit attached. Potential consequence: Habits formed now (late or rushed updates) carry into 2027/28, when the same lateness starts accumulating points. How to avoid it: Treat each quarter as if the points system already applies.
Mistake: Confusing the quarterly-update easement with payment deadlines. Why it happens: Both fall under “MTD compliance” in most guides. Potential consequence: Late payment penalties (from day 16) still apply even when the reporting deadline is forgiven. How to avoid it: Diarise payment and reporting dates separately.
Practical Checklist
- Confirm which quarter dates apply to you (tax-year quarters or calendar quarters)
- File any missed 2026/27 quarterly update as soon as possible, even without a points penalty
- Keep digital records current between updates, not just before deadlines
- Set a reminder for the 31 January final declaration — this still carries a penalty point if late
- Separate your payment deadline from your reporting deadline in your calendar
- Review software workflow now, ahead of the stricter 2027/28 regime
Conclusion
Missing the first MTD quarterly deadline is not the costly mistake it’s widely feared to be — for this tax year. HMRC’s transitional easement means quarterly reporting slips in 2026/27 won’t attract penalty points. But the final declaration, payment deadlines and next year’s rules haven’t softened at all, and the safest approach is to treat this year as practice for a regime that will apply in full from 2027/28.
If you’re unsure whether Making Tax Digital applies to you at all, a detailed guide to MTD qualifying income lays out the exact thresholds and how they’re calculated.
Shamayun Chowdhury is a Senior Accountant and CIMA-qualified lecturer in accounting at Nottingham Trent University, advising UK sole traders, landlords and small businesses on tax compliance through Eternity Accountants.
