Making Tax Digital · Sole traders
The final week before an MTD deadline: a submission checklist
ONLY£15A MONTHIn the final week, concentrate on complete records, clear approval and a confirmed submission.
In the final week, concentrate on complete records, clear approval and a confirmed submission. Repeatedly checking a countdown does not reveal what remains unfinished. A short checklist should show the actual dependencies and the person responsible for each one.
Check the essentials in order
- Confirm the person, business, tax year and reporting calendar.
- Check bank, cash, agent and payment-provider coverage for the full period.
- Resolve duplicate imports, transfers, refunds and unexplained private items.
- Review category totals against the reconciled records.
- Obtain any required client or reviewer approval.
- Submit through the supported route and retain the accepted result.
For the first standard 2026/27 update, the period ended on 5 July and the deadline was 7 August. Apply the checklist to the actual update now due rather than assuming those historic dates remain ahead.
Distinguish a blocker from annual work
A missing month of sales is a completeness problem. A genuine year-end capital-allowance calculation may be annual work. Keep the distinction explicit so urgent source-record errors are not deferred under the broad label “year-end adjustments”.
If a technical problem prevents progress, record the error and contact support with useful details. If professional review is required, confirm availability rather than assuming an immediate deadline-week service.
Worked example: approval still outstanding
A practice has reconciled the records and prepared the summary, but the client has not answered a question about a large receipt. The update is not ready merely because most boxes are complete.
The practice asks a specific question with the amount, date and possible explanation. Once resolved, the source record and summary are reviewed before submission.
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.
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.
Check completion across all businesses
After filing, compare accepted outcomes with the full obligation list. Keep the approved figures and acknowledgement together. Schedule the next record review so the new period continues while the final week is still fresh in your mind.
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.