Making Tax Digital for Income Tax Self Assessment (MTD for ITSA) changes how sole traders and landlords keep records and report income to HMRC. If your qualifying gross income exceeds the applicable threshold, you will need to keep digital records and submit quarterly updates to HMRC rather than a single annual Self Assessment return.
Updated 2026/27 · SoleTraderTaxCalculator.co.uk · Editorial standards · Methodology
Under MTD for ITSA, qualifying taxpayers must: keep digital records of business income and expenses using MTD-compatible software; submit quarterly updates to HMRC summarising income and expenses; and file a final declaration at the end of the year instead of a traditional Self Assessment return.
Quarterly updates are not tax payments. They are summaries submitted digitally to HMRC showing how your year is tracking. Tax is still calculated and paid after the end of the tax year in the usual way.
HMRC's rollout is phased and implementation dates may change. Current and planned dates are published on GOV.UK under Making Tax Digital for Income Tax. Always check the latest guidance rather than relying on older articles, as timelines have shifted previously.
From April 2026, MTD for ITSA is expected to apply to sole traders and landlords with gross qualifying income above £50,000. This threshold is based on gross income from self-employment and property combined, before expenses are deducted.
From April 2027, the threshold is expected to lower to £30,000, bringing more self-employed people into scope. Further extensions to lower income levels and general partnerships are planned for subsequent years.
The threshold applies to gross income — turnover — not taxable profit. A sole trader with £55,000 in fees and £15,000 in expenses has taxable profit of £40,000 but gross income of £55,000 and would be in scope from April 2026. If your business is growing, it is worth thinking about where your gross income will sit over the next year or two.
MTD-compatible software must meet HMRC's technical standards for record-keeping and submission. You cannot continue with a spreadsheet alone — unless it is connected to a bridging tool that submits to HMRC's APIs in a compliant way.
Records must capture the date and amount of each business income transaction, the date, amount and category of each business expense, and sufficient detail to complete quarterly updates and the final declaration. A basic bank statement is unlikely to meet the requirement on its own.
Most mainstream accounting software platforms — Xero, QuickBooks, FreeAgent, Sage and others — already offer or are developing MTD for ITSA compatibility. HMRC publishes a list of approved software on GOV.UK. Choosing software also compatible with Making Tax Digital for VAT (if you are VAT-registered) can reduce the number of systems you need to maintain.
The compliance pressure of MTD is what most people focus on, but maintaining current records has a genuine planning benefit: your tax estimate becomes more reliable during the year rather than only at year-end.
If your income is tracking 20% higher in Q2 than in Q1, you can adjust your monthly set-aside earlier rather than discovering the shortfall when the January bill arrives. The tax set-aside calculator is most useful when paired with current bookkeeping — an estimate built from recent actuals is more dependable than one based on last year's guess.
Quarterly updates also mean you spot discrepancies earlier: a missing invoice, an uncategorised expense, or a client payment that landed in the wrong account all surface quickly in a monthly or quarterly review rather than at year-end.
If you are likely to be in scope, the most practical steps are: confirm whether your current gross income exceeds or is approaching the threshold; check whether your existing bookkeeping software is MTD-compatible or whether a switch is needed; and ensure your current-year records are being kept in a way that will transfer cleanly into a digital system.
Building clean monthly bookkeeping habits now — before MTD applies — is significantly less disruptive than trying to reconstruct twelve months of records when the deadline arrives. It also produces better planning numbers throughout the year.
HMRC's MTD guidance on GOV.UK includes an approved software list and further information on registration and pilot programmes. If you have an accountant, they will be able to advise on the right software choice and transition planning for your situation.
From April 2026, MTD for ITSA is expected to apply to sole traders and landlords with gross qualifying income above £50,000. From April 2027, the threshold is expected to drop to £30,000. The threshold is based on gross income before expenses, not taxable profit. Always verify current dates on GOV.UK.
No. Quarterly updates are reporting summaries of income and expenses, not tax payments. Tax is still calculated and paid annually after the tax year ends, as with Self Assessment.
Not on its own. MTD requires digital records kept and submitted via MTD-compatible software. Spreadsheets can sometimes be used with a bridging tool that connects to HMRC's systems, but the arrangement must meet HMRC's technical requirements.
MTD changes how you report, not how tax is calculated. The same rules, rates and thresholds apply. Better record-keeping may indirectly improve your tax position by ensuring you claim all allowable expenses correctly.
The sole trader tax calculator turns this guidance into a concrete monthly take-home and tax reserve estimate, based on 2026/27 HMRC rates. Enter taxable profit — not turnover.
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