The best accountants for Making Tax Digital (MTD) combine three things: HMRC agent authorisation, recognised MTD software, and specialist knowledge of your income type — property, self-employment or both. Since 6 April 2026, sole traders and landlords with qualifying income over £50,000 must keep digital records and file quarterly updates, so choosing the right adviser now matters more than the annual return ever did.
This guide explains what an MTD accountant actually does, who needs one, the seven criteria that separate genuinely MTD-ready firms from those still working to an annual rhythm, and what you should expect to pay. It is written for the first mandated wave — and for the £30,000-plus group joining from April 2027.
Prefer to skip the research? Speak to an MTD specialist!
Key takeaways
What Does an MTD Accountant Actually Do?
An MTD accountant keeps your records in HMRC-recognised software, files your four quarterly updates, and submits the final declaration that replaces the old Self Assessment return. The job has shifted from one year-end task to a rolling, year-round compliance cycle.
Under the Income Tax (Digital Requirements) Regulations 2021 (SI 2021/1076, as amended), mandated taxpayers must keep digital records and submit updates for each quarter. The standard quarters run to 5 July, 5 October, 5 January and 5 April, with each update due by the 7th of the following month — so the first deadline for the 2026/27 tax year is 7 August 2026. A calendar-quarter election is available if month-end bookkeeping suits you better.
In practice, a good MTD accountant will:
Who Needs an Accountant for MTD?
Anyone with qualifying income above the mandation threshold should at least review their support. Qualifying income means gross income from self-employment and property combined, before expenses — not profit. HMRC measures it from your most recent Self Assessment return.
| Mandation date | Qualifying income over | Measured from tax year |
|---|---|---|
| 6 April 2026 (live now) | £50,000 | 2024/25 |
| 6 April 2027 | £30,000 | 2025/26 |
| 6 April 2028 | £20,000 | 2026/27 |
Two traps catch people out. First, the combined-income rule: £28,000 of rent plus £25,000 of self-employment puts you over £50,000, even though neither source does alone. Second, joint property: each joint owner counts their own share towards their own threshold, and jointly held property has specific easements worth professional advice. Limited companies are outside MTD for Income Tax entirely — they stay within Corporation Tax.
If you are under the threshold, you can join voluntarily — sensible for the £30,000-plus group, who are only one tax year away from mandation.
What makes the Best Accountant for MTD? Seven criteria
The best accountant for MTD is rarely the cheapest or the nearest. Use these seven tests, in order of importance:
MTD clients already live
Ask how many quarterly cycles the firm has actually run. Filing through HMRC's MTD APIs since April 2026 — or in the pilot before it — beats any promise of future readiness.
HMRC-recognised software included
You cannot file through HMRC's own website under MTD. The firm should provide or support recognised software, with bank feeds, and show you the GOV.UK 'find compatible software' listing for it.
Specialism in your income type
A landlord with foreign property or non-resident status needs a property tax specialist, not a generalist. A CIS subcontractor needs construction experience. Match the firm to the income.
Quarterly service model
Four deadlines a year demand a fixed monthly or quarterly workflow — record reviews, reminder cycles, a named contact — not a January-only relationship.
Qualified and regulated
Look for chartered certified accountants (ACCA), chartered accountants (ICAEW) or chartered tax advisers (CIOT), professional indemnity insurance, and HMRC agent registration. 'Accountant' is not a protected term in the UK.
Transparent fixed fees
MTD doubles the touchpoints; open-ended hourly billing can double with it. Insist on a published fixed fee covering all four updates and the final declaration.
Digital onboarding that does not dump the work on you
The firm should connect bank feeds, migrate prior records and train you on capturing receipts — not email you a spreadsheet.
Which Type of Accountant Is Best for Your Situation?
| Your situation | Best fit |
|---|---|
| Landlord, UK residential portfolio over £50,000 gross | Property tax specialist firm running landlord-specific MTD software, handling Section 24 and property-by-property records |
| Non-resident landlord | Specialist with Non-Resident Landlord Scheme (NRLS) experience and double-tax treaty knowledge |
| Jointly owned property | Adviser familiar with joint-property easements and Form 17 income splits for spouses |
| Sole trader plus rental income | Firm comfortable running two MTD businesses side by side — separate quarterly updates are required for each |
| Mixed UK and foreign property | Specialist using software that supports both UK and foreign property income under MTD |
| Limited company landlord | Outside MTD for Income Tax — you need a corporation tax accountant instead |
How Much Does an MTD Accountant Cost?
Expect more than the old once-a-year fee, because the work is quarterly. As a broad UK market guide in mid-2026: software-inclusive landlord MTD packages typically run from roughly £30 to £80 per month; standalone quarterly update support from around £100 to £250 per quarter; and full-service packages — bookkeeping, four updates, final declaration and advice — from about £600 to £1,500-plus a year depending on portfolio size and complexity.
Compare like with like: confirm whether software licences, the final declaration and ad-hoc advice are inside the fixed fee. The cheapest quote that excludes the final declaration is not the cheapest quote.
If you're an accountant, explore our full guide to: MTD for Accountants
Can You Do MTD Without an Accountant?
Yes — MTD is a software obligation, not an accountant obligation. If your affairs are simple, HMRC-recognised software with bank feeds can handle digital records and quarterly updates, and many landlords self-file this way.
The honest dividing line is adjustments and judgement. Quarterly updates are summaries of raw income and expenses; the tax-sensitive decisions — capital versus revenue repairs, the mortgage interest restriction, loss relief, the cash basis — land at year end. If those words are unfamiliar and money is at stake, professional review of at least the final declaration usually pays for itself. Many firms now offer hybrid support: you keep the records in software; they review and file.
What Happens if You Get MTD Wrong?
Late quarterly updates earn penalty points under the Finance Act 2021 regime: one point per missed submission, and a £200 fixed penalty once you reach the points threshold (four points on a quarterly cycle), with further £200 penalties for continued failures. Late payment attracts separate percentage-based penalties plus interest.
The quieter cost is poor records: missed allowable expenses, mis-claimed interest relief, and quarterly figures that need unpicking at year end. A firm running clean digital records all year removes both risks at once.
How to Switch Accountants for MTD
Switching is easier than most people expect, even mid-year. The new firm requests professional clearance from the old one, you authorise them as your HMRC agent, and your digital records transfer with the software — one advantage of cloud-based MTD bookkeeping. The practical deadline discipline: complete the handover before a quarterly cut-off rather than across one, so no update falls between firms.
Frequently asked questions
No — the legal requirement is digital records and quarterly filing through HMRC-recognised software. An accountant becomes valuable when adjustments, reliefs, multiple income sources or non-residence add judgement to the numbers.
6 April 2026, for sole traders and landlords with qualifying income over £50,000 in 2024/25. The threshold falls to £30,000 from April 2027 and £20,000 from April 2028. The first quarterly update for the 2026/27 year is due by 7 August 2026.
Your combined gross income from self-employment and property before expenses. Employment income, dividends and other sources do not count towards the threshold.
Yes. Once authorised as your agent, an accountant can maintain your digital records and submit quarterly updates and the final declaration on your behalf through recognised software.
No. MTD for Income Tax applies to individuals — sole traders and landlords. Companies remain within Corporation Tax, with their own digitalisation timetable to follow.
Speak to a property tax specialist about MTD
UK Property Accountants is a firm of chartered certified accountants and chartered tax advisers specialising in UK property taxation, supporting landlords — resident and non-resident — through MTD for Income Tax with fixed-fee quarterly support. Book a consultation to get your records, software and first deadlines in order.
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