MTD Income Tax 2027 checklist
Plan digital records, quarterly update routines and accountant review before the £30,000 MTD Income Tax phase.
MTD Income Tax is now a live planning issue for sole traders and landlords likely to join from April 2027. The second wave may include businesses that have relied on simple cashbooks for years, so the transition needs a calmer lead time. This guide narrows the job to the £30,000 threshold preparation plan, 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 |
|---|---|---|
| Income test | Review 2025 to 2026 self-employment and property income | This is the income year HMRC uses for the 2027 phase |
| Bank setup | Separate business, property and private transfers | Clean feeds reduce quarterly clean-up |
| Expense categories | Map recurring costs to Self Assessment headings | Quarterly summaries need consistent categorisation |
| Review dates | Book quarterly review slots with the accountant | The deadline is not the right time to discover missing records |
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
- Assuming the 2026 threshold is the only relevant test
- Ignoring property income because each property is small
- Leaving bank rules unreviewed until the first update
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 2027 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.