Making Tax Digital · Sole traders
Why a missed 2026/27 quarterly update does not trigger an automatic £100 fine
ONLY£15A MONTHThe familiar £100 late Self Assessment penalty should not be applied automatically to a missed MTD quarterly update.
The familiar £100 late Self Assessment penalty should not be applied automatically to a missed MTD quarterly update. HMRC has stated that there are no penalties for missing quarterly-update deadlines in 2026/27. That is a specific concession, not a promise that every tax obligation is penalty-free.
Apply the rule to the right obligation
HMRC's MTD penalty guidance distinguishes the new regime, the first-year quarterly concession and earlier tax years. The 2025/26 return due by 31 January 2027 remains subject to the rules for that earlier year.
The 2026/27 annual return is a separate filing due by 31 January 2028. Late payment and interest also have separate treatment. Avoid turning a quarterly concession into a statement that there can be no financial consequences for any missed tax task.
Use the concession to establish the routine
Keep the required digital records, complete outstanding reporting and retain the outcome. Check why the deadline was missed: missing history, access, review or a forgotten final action. Correct the process while the details are clear.
If a penalty notice is received, read the tax year and obligation before assuming it relates to the quarterly update. Use the stated review or appeal route if the notice appears incorrect.
Worked example: two different late filings
A sole trader misses the August 2026 quarterly deadline and also files the 2025/26 annual return late in 2027. The first-year quarterly concession does not automatically protect the separate annual return.
Keeping the two years and obligations distinct prevents both unnecessary alarm about the quarterly update and false reassurance about the annual filing.
Understand the first-year concession
HMRC states that there are no penalties for missing quarterly-update deadlines for the 2026/27 tax year. That concession does not remove the digital-record or quarterly-reporting obligations, and it does not make all tax returns and payments penalty-free. Read the precise penalty guidance.
Outstanding quarterly reporting must be dealt with before completing the relevant annual return. However, a missed August 2026 update should not be described as an automatic penalty on the separate 2025/26 return due in January 2027. The 2026/27 annual-return deadline is January 2028.
After the first-year concession, the points rules apply to missed quarterly deadlines as described by HMRC. Do not assume that multiple businesses create multiple points at the same deadline. Annual-return rules, late-payment penalties and interest require their own checks.
If you have fallen behind, establish what is outstanding and work through the supported catch-up process. Keep evidence of technical problems and contact the appropriate support team with the business, period and error details. The useful next step is a complete record and an accepted update, rather than guessing what a generic warning might mean.
A review that checks more than the total
Start with coverage: the correct person, business and period, plus all relevant accounts and cash records. Then look at completeness. A feed can be connected today while still missing an earlier week. Confirm the earliest and latest transactions against the source.
Next, inspect unusual items. Large transfers, loan receipts, refunds, net settlements and private purchases often need more context than a bank description provides. Check for duplicate imports where a statement overlaps a live feed. An automatic warning is useful evidence to investigate, not proof that the entry must be removed.
Finally, review category totals. A category unexpectedly showing zero, a large increase or a negative amount deserves an explanation. You do not have to make every annual tax adjustment at this stage, but you should understand the records behind the summary you approve.
HMRC explains what quarterly updates contain. Keep the approved version and the resulting acknowledgement together. If something later changes, correct the source record and use the software's supported update process so you can explain which figures are current.
Keep the reporting dates separate from payment dates
The standard first update for 2026/27 covers 6 April to 5 July 2026 and was due by 7 August 2026. The second covers 6 April to 5 October 2026 and is due by 7 November 2026. The third and fourth deadlines are 7 February 2027 and 7 May 2027. These are cumulative updates, not four isolated sets of three-month totals.
Calendar periods have different cut-offs and the same filing deadlines. Check the setting for each business rather than assuming the dates from a bank statement. HMRC lists both reporting calendars.
The annual return for 2026/27 is due by 31 January 2028. The earlier 2025/26 return normally remains due online by 31 January 2027. Keeping those years distinct avoids a common transition-year misunderstanding.
Payments on account, where required, follow their own January and July timetable. An update acknowledgement confirms a reporting event; it does not confirm that an outstanding tax bill has been paid. Check your actual HMRC account and payment obligations separately from the software's progress indicators.
Complete the missing reporting now
Establish the outstanding business and period, reconcile the records and use the supported catch-up route. Keep the true submission date. The useful result is complete reporting and a better routine, rather than waiting to see whether a generic fine appears.
Take the next step
Avona.app offers a self-service route from £15/month. Bring your records together, review the figures and choose a workflow that fits your business. For professional help, discuss the scope and total price of Avona Concierge, managed by chartered accountants, before choosing a service.