Penalties for Missing MTD Quarterly Deadlines: What Sole Traders Risk

Missing a Making Tax Digital quarterly update normally earns a sole trader one penalty point, with a £200 fine triggered once four points have accumulated, but HMRC has confirmed a soft landing for the first twelve months of the regime so no points are issued for late quarterly updates during 2026/27. That concession is narrower than it sounds. It does not cover the final declaration, and it does not touch late payment penalties, which start at 3% of the outstanding tax after fifteen days and are unchanged. Making Tax Digital self-employed 2026 obligations began on 6 April 2026 for anyone with qualifying income above £50,000, and the first update fell due on 7 August 2026. Blue Tick Accountants, a Guildford-based UK tax advisory and accountancy practice, helps sole traders get their filing rhythm right before the concession expires. This article sets out every deadline, what each type of penalty actually costs, and how points are cleared.

Key Takeaways

• Each missed Making Tax Digital quarterly update normally attracts one penalty point, and a £200 penalty is charged once four points are held, with a further £200 for every subsequent late submission.
• No penalty points are issued for late quarterly updates during the first twelve months of Making Tax Digital for Income Tax, covering the 2026/27 tax year.
• The soft landing does not apply to the final declaration, which is due by 31 January 2028 for the 2026/27 tax year and carries penalty points in the normal way.
• Late payment penalties are 3% of the tax outstanding after 15 days, a further 3% after 30 days, then 10% per annum accruing daily from day 31.
• Quarterly update deadlines are 7 August, 7 November, 7 February and 7 May, and apply to sole traders with qualifying income above £50,000 from April 2026, above £30,000 from April 2027 and above £20,000 from April 2028.
• Late payment interest runs on top of penalties at the Bank of England base rate plus four percentage points.

What are the MTD quarterly deadlines for sole traders in 2026/27?

Sole traders within Making Tax Digital for Income Tax must file four quarterly updates a year, due on 7 August, 7 November, 7 February and 7 May, followed by a final declaration by 31 January after the tax year ends. For the 2026/27 tax year that means updates on 7 August 2026, 7 November 2026, 7 February 2027 and 7 May 2027, and a final declaration by 31 January 2028.

An MTD ITSA sole trader is in scope where qualifying income exceeds £50,000. Qualifying income is gross income before allowable expenses, and self-employment and property income are added together, so a tradesperson with £41,000 of turnover and £12,000 of rent is mandated despite a much smaller taxable profit. The threshold falls to £30,000 from April 2027 and £20,000 from April 2028.

The quarterly returns self-employed businesses now file are cumulative totals of income and expenses by category, not tax calculations. Nothing is payable on a quarterly update. For the full picture of what each submission contains, see our guide to Making Tax Digital for the self-employed.

What is the penalty for missing an MTD quarterly deadline?

The standard penalty for a late quarterly update is one penalty point, with a £200 fine charged once four points have accumulated and a further £200 for each late submission after that. Points are not fines in themselves, which is why a first missed deadline produces a warning rather than a bill.

The system is deliberately calibrated to submission frequency. Because sole traders file four times a year, the threshold is four points, so a taxpayer who misses every update in a single year reaches the £200 charge exactly at the fourth default. A taxpayer who misses one update a year for four consecutive years arrives at the same place more slowly.

Points also expire. A single point drops off automatically 24 months after the month in which the missed deadline fell, provided the four point threshold was never reached. Once the threshold is hit, expiry stops and the points can only be cleared by a period of compliance, explained below.

Does the soft landing mean quarterly updates can be ignored in 2026/27?

No. The soft landing removes penalty points for late quarterly updates in the first twelve months of the regime, but it leaves three other exposures fully intact, and it ends before most sole traders will have built a reliable filing habit.

First, the final declaration for 2026/27 is outside the concession. File it after 31 January 2028 and the points regime applies normally. Second, late payment penalties and late payment interest are entirely unaffected, and those are where the real money sits. Third, the underlying requirement to keep digital records with digital links between them still applies, and failure to keep adequate records can attract a penalty of up to £3,000 per tax year under existing HMRC powers.

The practical risk is behavioural. A sole trader who skips updates through 2026/27 because nothing happens will arrive at 6 April 2027 with no bookkeeping rhythm, no reconciled figures, and a points regime that has switched on.

How much do late payment penalties actually cost?

Late payment penalties are charged at 3% of the tax outstanding after 15 days, a further 3% after 30 days, and then 10% per annum accruing daily from day 31, with late payment interest running alongside at base rate plus four percentage points.

Take a sole trader with a balancing payment of £14,000 due on 31 January 2028 who pays on 30 April 2028, ninety days late.

At day 15, a first penalty of 3% of £14,000 gives £420. At day 30, a further 3% of the £14,000 still outstanding gives another £420. From day 31 to day 90, sixty days at 10% per annum on £14,000 adds £230. The total penalty is £1,070, and late payment interest is charged on top for the whole period.

Paying within fifteen days avoids all three charges. Agreeing a time to pay arrangement with HMRC before day 15 can also prevent penalties accruing, provided the arrangement is kept to.

How do you clear penalty points and stay compliant?

Penalty points at the four point threshold are cleared only by completing a period of compliance, which for quarterly filers means submitting every return on time for twelve consecutive months and having filed all submissions due in the previous 24 months, even if some were filed late.

Three habits prevent the problem. Reconcile your bank feed monthly rather than the week before a deadline, because a quarterly update is cumulative and an unreconciled backlog is the usual reason a submission slips. Diarise 7 August, 7 November, 7 February and 7 May as fixed dates in the same way you would 31 January. And check that your software is on HMRC's compatible list and properly authorised, because an authorisation that has lapsed is discovered at the worst possible moment.

Reasonable excuse remains available where a submission is missed for a genuine reason such as serious illness, bereavement or software failure outside your control, but it must be claimed and evidenced rather than assumed.

Frequently Asked Questions

What happens if I miss the 7 August MTD deadline?

For the 2026/27 tax year, no penalty point is issued for a late quarterly update because HMRC has applied a soft landing to the first twelve months of Making Tax Digital for Income Tax. The submission is still required and should be filed as soon as possible, because the cumulative nature of quarterly updates means a missed quarter compounds into the next one.

How many penalty points before a fine under Making Tax Digital?

Four penalty points trigger a £200 fine for taxpayers filing quarterly updates under Making Tax Digital for Income Tax. Each late submission earns one point, and once the four point threshold is reached a further £200 penalty is charged for every subsequent late submission until the points are cleared through a period of compliance.

Do MTD penalty points ever expire?

A single penalty point expires automatically 24 months after the month in which the missed deadline fell, provided the four point threshold has never been reached. Once four points are held, automatic expiry stops. The points can then only be removed by filing on time for twelve consecutive months and having submitted all returns due in the previous 24 months.

Is there a penalty for paying my tax late as well as filing late?

Yes, and the late payment penalties are separate from the filing regime and unaffected by the soft landing. A penalty of 3% of the outstanding tax applies after 15 days, a further 3% after 30 days, and 10% per annum accrues daily from day 31. Late payment interest is charged in addition at base rate plus four percentage points.

Do I still have to file a self-assessment tax return under MTD?

The annual tax return is replaced by a final declaration, due by 31 January following the end of the tax year, which confirms the quarterly figures and adds any other income such as employment, dividends or savings interest. For the 2026/27 tax year the final declaration is due by 31 January 2028, the same date as the balancing payment.

How Blue Tick Can Help

Blue Tick Accountants runs Making Tax Digital compliance for self-employed clients across the UK, from choosing and authorising compatible software to filing every quarterly update and the final declaration on time. If your bookkeeping is behind, or you are unsure whether your qualifying income puts you in scope for 2026/27 or 2027/28, a readiness session will tell you exactly where you stand before the soft landing expires. Head to our website and book a meeting now.

Conclusion

The soft landing buys sole traders one year of protection on quarterly updates and nothing more: the final declaration, late payment penalties and the digital record-keeping requirement all bite as normal in 2026/27. Use the concession as the practice run it was designed to be, not as permission to ignore the deadlines. Get your records reconciled monthly and your four update dates diarised now, so that when points switch on in April 2027 the habit is already there.

About the Author

This guide was written by Leon, founder of Blue Tick Accountants, a Guildford-based UK tax advisory and accountancy practice that helps the self-employed, landlords and limited company owners across the UK. Leon advises sole traders on Making Tax Digital compliance, self-assessment and tax planning. It was last reviewed for the 2026/27 tax year.

This article is intended for general informational purposes only and does not constitute tax, legal, or financial advice. Tax rules are subject to change and their application will depend on your individual circumstances. You should always seek advice from a qualified professional before taking action. Blue Tick Accountants accepts no liability for decisions made on the basis of this content.

Related reading: MTD for the Self-Employed: Your Transition Checklist.