MTD Income Tax 2026 checklist
Prepare digital records, software authorisation, quarterly updates and accountant review before the April 2026 MTD Income Tax start.
MTD Income Tax is now a live planning issue for sole traders and landlords above the first MTD Income Tax threshold. The first wave is close enough that software choice, records and accountant roles should already be settled. This guide narrows the job to the April 2026 readiness checklist, so the business can move from annual clean-up to a repeatable quarterly review.
For wider context, use Making Tax Digital and Software . If the topic affects a filing deadline, software choice or tax treatment, confirm the live position before acting. The workflow below is designed to keep the evidence in one place so the owner, bookkeeper and accountant can all review the same record.
Official point to verify
GOV.UK currently phases MTD for Income Tax by qualifying income: over £50,000 from 6 April 2026, over £30,000 from 6 April 2027 and over £20,000 from 6 April 2028. HMRC also says partnerships will move onto a later timetable. Check the current wording in GOV.UK MTD Income Tax timing guidance before making a binding filing, software or tax decision.
What to control
| Area | Control | Why it matters |
|---|---|---|
| Threshold check | Confirm qualifying income from the 2024 to 2025 return | The 2026 start depends on the historic income test |
| Software | Choose and authorise compatible software | Quarterly updates cannot be sent from an ordinary spreadsheet alone |
| Records | Move sales, expenses and property income into digital categories | The first update needs live data, not a year-end reconstruction |
| Accountant access | Agree who reviews exceptions before each deadline | MTD is easier when responsibilities are clear |
Review routine
Build the routine around monthly bookkeeping rather than waiting for the quarterly deadline. Reconcile the bank, clear uncategorised transactions, review owner drawings or property transfers, then let the software produce the update totals. The accountant should review exceptions, not rebuild the ledger.
A useful review note should answer three questions: what source evidence was used, what judgement was applied, and who approved the treatment. Keep that note beside the transaction or period report rather than in a separate inbox.
Common mistakes
- Waiting for HMRC to write before preparing the records
- Keeping property and trade income in one mixed spreadsheet
- Choosing software without checking agent access
The best prevention is a short, repeated checklist. If a control is too complicated to run every month or quarter, it will probably fail when the deadline is close.
How ReAI helps
ReAI helps by keeping invoices, bank imports, receipts, review notes and accountant access in one place. That makes quarterly MTD work a by-product of ordinary bookkeeping instead of a separate spreadsheet exercise. For hands-on help with setup, see Accounting Assistance for Small Businesses .
Summary
Treat MTD Income Tax 2026 checklist as a recurring accounting control, not a one-off admin task. Put the source data, review owner, exception list and submission evidence in the same system before the deadline arrives. That makes compliance work easier to check and much less dependent on memory.