Making Tax Digital · Sole traders
The UK tax gap and why digital business records matter
ONLY£15A MONTHHMRC's tax-gap statistics describe an estimated difference between tax theoretically due and tax paid.
HMRC's tax-gap statistics describe an estimated difference between tax theoretically due and tax paid. They help explain the policy focus on compliance, but they are not a measure of missing receipts alone. Digital records can support better bookkeeping without guaranteeing that every tax error disappears.
Use the correct statistic and year
In its June 2026 publication, HMRC provisionally estimated the 2024/25 tax gap at £59.2 billion, or 6.4% of theoretical liabilities. The estimate covers taxes and customer groups across the system. Read the official 2026 summary.
The figure is an estimate subject to uncertainty and revision. It should not be described as money lost solely through sole-trader bookkeeping mistakes, nor as a sum that one software product will recover.
Understand what MTD changes for the individual
MTD Income Tax introduces digital-record and quarterly-update requirements for people within its scope. An annual return remains necessary. Four business updates and one annual return is a useful outline for a straightforward single-business case, but people with multiple relevant businesses can have more updates.
Better records make omissions and inconsistencies easier to identify. They do not decide employment status, private use or complex reliefs automatically. Review and appropriate judgement remain part of the process.
Worked example: preventing a duplicated cost
A business imports the same £300 invoice payment from a statement and a live bank feed. Reconciliation reveals the duplicate before submission. Correcting it improves the records and the reported expense total.
This is a concrete bookkeeping benefit. It does not support a claim that the business has eliminated every tax risk or that the national tax gap consists entirely of similar duplicates.
Where this fits into Making Tax Digital
For 2026/27, the first mandatory phase generally covers individuals whose combined qualifying self-employment and property income was more than £50,000 in 2024/25, subject to exemptions. Qualifying income normally means income before expenses. It is a different figure from taxable profit. Check the qualifying-income rules.
Once within MTD, keep the required digital records and send quarterly summaries for each relevant business. The summaries are cumulative from the start of the reporting year. They do not contain your entire personal tax position, and sending one does not itself create a quarterly tax-payment demand.
HMRC does not require accounting or tax adjustments before each quarterly update. Those adjustments and the other information needed for the annual return still have to be completed at the appropriate stage. Keep a review list so a matter deferred until year end is not forgotten. Read HMRC's quarterly-update guidance.
Software can organise the information, but the business facts remain essential. Review the figures you approve rather than assuming that a successful import has also settled every tax question.
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 evidence connected to the figures
Your digital record should explain the amount, date and nature of the transaction. Keep the invoice, receipt, statement or other evidence that supports it. A photograph can make a paper document easier to retain, but a folder of photographs alone does not create complete transaction records.
For sole traders, HMRC normally requires business records to be kept for at least five years after the relevant 31 January filing deadline. Keep them longer where the rules for a late return, enquiry or other circumstances require it. Check the record-retention guidance.
Make the records usable by your future self. Include a short explanation where a bank description is vague, retain the calculation behind a business-use split and make corrections traceable. For a missing receipt, try the supplier account, email confirmation or a replacement invoice before relying on incomplete evidence.
At review time, compare your records with the bank or payment account and investigate differences. Equal totals are useful, but two errors can cancel each other out. A sample of individual transactions can reveal a duplicated purchase or an omitted customer receipt that a totals-only check misses.
Focus on the controls you can apply
Maintain complete sources, reconcile regularly and investigate unusual entries. Use national statistics with their date and scope when discussing policy. For your own business, a clear record and a reviewed submission are more actionable than an alarming headline number.
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.