Making Tax Digital for Income Tax: What Sole Traders Need to Know
How quarterly reporting is changing the rhythm of Self Assessment without replacing the final tax return
For years, Self Assessment has had a familiar rhythm. A sole trader works through the year, gathers the records later and gradually turns towards the 31 January deadline.
Making Tax Digital for Income Tax changes that rhythm. Once it applies, the financial year can no longer sit untouched until January. HMRC expects updates drawn from digital records while the year is still unfolding.
That creates an obvious question: has one annual tax return become four? The answer is no. The quarterly updates and the final return have different purposes. Understanding that difference makes the whole system easier to follow.
Self Assessment is becoming a year-round process
The most important change is not the arrival of another piece of software. It is the point at which the records need attention.
Under the old routine, a missing receipt from June might not become a problem until the following winter. Under Making Tax Digital, the first update deadline can arrive on 7 August. By then, the software needs enough information to summarise what has happened since the tax year began.
This does not mean producing final accounts every three months. It means moving bookkeeping closer to the day-to-day life of the business. Income and expenses need to be recorded digitally and checked often enough for the quarterly picture to be meaningful.
The rollout is being staged, so not every sole trader enters at the same time.
Changeable information: MTD entry thresholds
| Tax return HMRC reviews | Qualifying income | MTD start date |
|---|---|---|
| 2024/25 | More than £50,000 | 6 April 2026 |
| 2025/26 | More than £30,000 | 6 April 2027 |
| 2026/27 | More than £20,000 | 6 April 2028 |
Qualifying income means gross income from self-employment and property before expenses. Where someone has more than one sole trade or property business, the amounts are combined. Employment income, dividends, pensions and an individual partner’s share of partnership profit do not count towards the threshold.
HMRC may write to someone who needs to join, but receiving no letter does not remove the responsibility to check.
Some exemptions are automatic and others require an application. Digital exclusion may apply where age, health, disability, religious beliefs or lack of internet access makes using compatible software unreasonable. Unfamiliarity or extra cost is not enough on its own.
The records now carry the story of the year
Digital record keeping can sound more complicated than it is. HMRC does not receive a copy of every receipt or invoice. The requirement is to create and store records of business income and expenses in compatible software. Each transaction normally needs an amount, a date and the relevant Self Assessment category.
A sole trader may use one accounting product or connect a spreadsheet to HMRC through bridging software. If information moves between products, the transfer must be digital rather than manual copying and pasting.
Technology helps, but it does not make the decisions. A bank feed may import a payment automatically, yet it cannot always know whether that payment was business or personal, whether the expense is allowable, or which category is correct. Those decisions still require judgement, supporting evidence and a proper understanding of the business.
The software carries the records. The sole trader, or their accountant, still needs to understand and check them.
What HMRC sees each quarter
At the end of an update period, the software adds together the recorded income and expenses for each category. HMRC receives those totals, not the underlying receipts and invoices.
The updates are cumulative. The second runs from the beginning of the year to October, rather than reporting only the latest three months. Later updates continue building the same picture.
For standard update periods, the deadlines are 7 August, 7 November, 7 February and 7 May.
A business with a 1 April to 31 March accounting period can choose calendar periods ending on 30 June, 30 September, 31 December and 31 March. The deadlines remain the same. The calendar option must be chosen before the first update for that tax year is sent.
Year-end accounting and tax adjustments are not required before a quarterly update. Even a business with no activity must submit one. Separate businesses need separate records and updates.
The annual tax return has not disappeared
The quarterly picture is useful, but it is not the final answer. It may support an estimated tax calculation, although that estimate can be incomplete if other income or adjustments have not yet been included.
After the tax year, errors are corrected, adjustments made, and other taxable amounts added. These could include savings interest, dividends, partnership income or gains. Information held by HMRC must also be checked.
Only after that work is the annual tax return submitted through compatible software. The 31 January filing and payment deadline remains.
Quarterly updates tell HMRC how the year is developing. The annual tax return confirms the complete position and final tax calculation.
When the quarterly picture goes wrong
A quarterly submission does not repair incomplete records. If income is missing, a transaction has been duplicated or personal spending has been treated as a business cost, the problem can flow into the next cumulative update.
Corrections can normally be reflected in a later update, so earlier submissions do not need to be rebuilt one by one. The full-year figures must still be correct before the annual return is filed.
HMRC will not apply penalty points for late quarterly updates during 2026/27. This is a first-year easement, not a cancellation of the quarterly obligations. A late annual return can still attract a penalty point.
For later tax years, each missed quarterly or tax-return deadline can result in a point. Reaching four points brings a £200 penalty, followed by another £200 for each further missed deadline while the relevant conditions continue.
Late payment is dealt with separately and may bring penalties and interest.
The 2026/27 easement does not make the quarterly deadlines optional. Outstanding updates can delay the annual return and leave less time to correct the full-year position.
A better routine, not four Januarys
The risk is treating every quarterly deadline like another miniature January: stop, search for paperwork, rebuild the records and submit under pressure. That would increase the administration without improving the information.
A better approach is quieter and more regular. Record transactions while they are still recognisable. Reconcile the bank before questions become difficult to answer. Keep separate businesses separate, and resolve missing information during the year rather than carrying it forward.
MTD readiness check
Before the first update, confirm the entry date, compatible software, update periods and responsibility for maintaining the records. Then allow time after the year end for the final review and tax return.
Professional help may be useful where personal and business spending is mixed, several income sources are involved, records are incomplete or the software setup is unclear.
If an accountant is involved, both sides should know who maintains the books, who reviews each update and when information must be supplied. The responsibility for accurate information still belongs to the taxpayer.
Making Tax Digital does not remove the annual tax return, and it does not turn bookkeeping into a purely automatic process. It changes the pace.
The businesses that adapt most easily will be those that make digital records part of their normal routine. The quarterly updates then become a reflection of work already done rather than the start of another rescue exercise.