What is MTD for ITSA?
Making Tax Digital for Income Tax Self Assessment (MTD for ITSA) is a UK government initiative to modernise how self-employed individuals and landlords report income and expenses. Rather than filing once per year, you'll report quarterly updates via software from financial year starting 6 April 2026. (gov.uk)
Who’s affected and when it applies
| Group | Income threshold | Required start date |
|---|---|---|
| Sole traders & landlords with income over £50,000 from self-employment and/or property | >£50,000 | From 6 April 2026 (gov.uk) |
| Those with income between £30,000-£50,000 | >£30,000 | From 6 April 2027 (gov.uk) |
| Those with income over £20,000 | >£20,000 | From 6 April 2028 (gov.uk) |
Key changes and what stays the same
What’s new:
- Quarterly updates: Submit summaries of income, expenses, and reliefs every quarter. (makingtaxdigital.campaign.gov.uk)
- End-of-year Final Declaration: Confirm and finalise what’s already reported. (developer.service.hmrc.gov.uk)
- Digital-enabled record-keeping and software: All affected individuals must use MTD-compatible digital tools. (developer.service.hmrc.gov.uk)
What stays the same:
- Tax payment deadlines, such as the 31 January deadline for payment of balancing payment, are unchanged. (makingtaxdigital.campaign.gov.uk)
- Amount of tax owed is based on the same calculations, not altered by reporting frequency.
- Obligations to keep records already existed, but now the timing and format change; many record-keeping duties remain.
Examples
- Alice, a landlord earning £60,000/year from rental: she must submit quarterly income/expenses updates for tax and Class 4 NICs from April 2026. At year end, she still files a Final Declaration.
- Ben, a sole trader with £35,000 income: doesn’t need to join MTD for ITSA until 6 April 2027. Before then, can sign up voluntarily.
Practical preparation steps
- Choose software early — use HMRC’s software list to find tools compatible with MTD for Income Tax. (developer.service.hmrc.gov.uk)
- Start digital record-keeping now — even before being required, build habits to gather receipts, invoices, bank statements in digital form.
- Watch cash flow — more frequent reporting can highlight tax liabilities earlier, helping with budgeting.
- Know your income types — self-employment, property income, and some other income sources count toward thresholds. PAYE income usually doesn’t count. (developer.service.hmrc.gov.uk)
- Seek deferrals or exemptions if needed — HMRC offers digital-exempt options for those with accessibility or capability barriers.
Common pitfalls to avoid
- Under-estimating income sources and crossing thresholds unexpectedly.
- Failing to ensure your software meets HMRC minimum functionality standards.
- Missing quarterly deadlines — these are new and enforceable.
- Overlooking important reliefs or expenses that can reduce tax burden.
Bottom line: If you're a sole trader or landlord with qualifying income, MTD for ITSA is now your reality from April 2026 (if over £50,000). Early planning will save headaches, improve accuracy, and ensure smoother compliance.