Making Tax Digital for Income Tax for Landlords: Who's Affected and How to Prepare

Making Tax Digital for Income Tax (MTD for Income Tax, sometimes written MTD ITSA) is the biggest change to how UK landlords report rental income since Self Assessment itself. From April 2026, many landlords will stop filing one annual tax return and instead keep digital records and send HMRC a summary of their property income and expenses every three months, plus a year-end finalisation.

There is a lot of noise about this online, and the rules have shifted more than once over the past few years. This guide sets out what is actually confirmed as of mid-2026: who is in scope, the income thresholds, the phased start dates, what genuinely changes compared with the Self Assessment process you already know, and the practical steps to get ready without panicking.

Who is affected, and when

MTD for Income Tax applies to individuals who are registered for Self Assessment and have income from self-employment, property, or both. For landlords specifically, it is your property income that matters. Whether you are caught, and from which date, depends entirely on your qualifying income measured against a threshold that steps down over three years.

You must start using MTD from	If your qualifying income exceeds	Measured in the tax year
6 April 2026	£50,000	2024 to 2025
6 April 2027	£30,000	2025 to 2026
6 April 2028	£20,000	2026 to 2027

HMRC looks back at your reported income to decide when you join. For the first wave, it is your figures on the 2024 to 2025 Self Assessment return (the one due by 31 January 2026) that determine whether you cross £50,000. If you do, you are mandated from 6 April 2026. HMRC writes to taxpayers it believes are in scope, but the legal obligation does not depend on receiving a letter, so it is worth checking your own numbers.

The threshold continues to bite in later years: someone reporting £22,000 of qualifying income for 2026 to 2027 is not in scope in 2026 or 2027, but is pulled in from April 2028 under the £20,000 phase. Partnerships are expected to follow at a later date, but no firm timetable has been confirmed, so partnership landlords are not yet affected.

What counts as "qualifying income" — and what doesn't

This is the single most misunderstood part of the rules, so it is worth being precise. Qualifying income is your gross income from property and self-employment combined — turnover, before deducting any expenses. It is not your taxable profit.

That distinction matters enormously for landlords. Consider a landlord with three properties producing £42,000 in rent and another £12,000 from a side business. Their profit after mortgage interest, repairs, agent fees and other costs might be only £15,000 — but their qualifying income is £42,000 + £12,000 = £54,000. They are over the £50,000 threshold and mandated from April 2026, despite a relatively modest profit.

• Counts: gross rental income from UK and overseas property, plus gross self-employment turnover. You add the two together — there is one combined threshold, not a separate one for each.
• Does not count: employment income taxed under PAYE, pensions, dividends, bank interest, and capital gains (for example, the profit when you sell a rental property). These sit outside the qualifying income test entirely.

Because the figure is gross rent, even a landlord with a heavily mortgaged portfolio and slim margins can be brought into MTD. Run your own gross numbers rather than assuming your low taxable profit keeps you out.

What actually changes versus Self Assessment

If you currently file once a year, the shift is real but not as dramatic as the headlines suggest. The underlying tax — what you owe and when you pay it — is broadly unchanged. What changes is the recording and reporting rhythm.

Aspect	Self Assessment now	Under MTD for Income Tax
Record keeping	Any method, including paper or a spreadsheet kept up once a year	Digital records of each income and expense, kept in compatible software
Reporting frequency	One return per year	Four quarterly updates plus a final declaration
How you file	HMRC online portal or commercial software	MTD-compatible software only — no manual portal entry of the quarterly figures
Year-end	SA100 tax return	Final declaration (replaces the SA return for that income)
Payment dates	31 January / 31 July	Unchanged — same payment and payments-on-account dates

Quarterly updates

You send HMRC a running cumulative total of your property income and expenses, broken into standard categories, four times a year. The standard quarterly periods and deadlines are fixed:

• 6 April to 5 July — due 7 August
• 6 July to 5 October — due 7 November
• 6 October to 5 January — due 7 February
• 6 January to 5 April — due 7 May

So for the first cohort starting 6 April 2026, the very first quarterly update deadline is 7 August 2026. These updates are summaries, not mini tax returns — you are not claiming reliefs or calculating tax at this stage, and there is an option to align quarters to calendar months if you prefer. Crucially, quarterly figures are not binding; you correct and finalise everything at the end of the year.

The final declaration

After the fourth quarter, you complete a final declaration by 31 January following the tax year — the same date as the current Self Assessment deadline. This is where you make accounting adjustments, claim allowances and reliefs (such as the property finance cost tax reducer for residential mortgage interest), add any other income like dividends or PAYE, and confirm the figures are correct. The final declaration replaces the Self Assessment return for your property and self-employment income. Your tax bill is then calculated as now, and paid on the usual dates.

Exemptions and situations where MTD doesn't apply

Not every landlord with high rents is forced in. Some exemptions apply automatically; others require an application to HMRC.

• Below the threshold: if your qualifying income is under the relevant figure, you are automatically exempt and do not need to tell HMRC.
• Digital exclusion: people who cannot reasonably use digital tools — for example due to age, disability, a physical or mental condition, or location without reliable internet — can apply for exemption.
• No National Insurance number: taxpayers without a NINO are automatically exempt for the relevant year.
• Certain non-residents and specific filers who report using particular supplementary pages may fall outside the requirement.
• Religious grounds: members of a religious society whose beliefs are incompatible with electronic communications can apply.

If you think an exemption applies, do not simply stop filing — automatic exemptions need no action, but application-based ones must be requested from HMRC (you or your agent), and some only last a single tax year.

Jointly owned property

If you own property jointly — common between spouses or civil partners — each owner assesses their own share of the gross rental income against the threshold. There are also lighter-touch rules allowing some flexibility on the level of expense detail required quarterly for jointly held property, with the full split confirmed at finalisation. Each joint owner is treated separately, so one partner can be mandated while the other is not.

How to prepare: a practical checklist

The landlords who find MTD painful are usually those who leave their records until January. The whole model assumes you keep books as you go, so the preparation is mostly about habits and tools.

1. Work out your real qualifying income. Add up gross rent across all properties plus any self-employment turnover. Compare against £50,000, then £30,000, then £20,000 to find your start year.
2. Choose MTD-compatible software early. You must use software that can keep digital records and submit to HMRC. Spreadsheets are only acceptable when paired with bridging software. Pick a tool aimed at landlords so the property categories match how you actually let.
3. Open a dedicated bank account for rental income and costs if you have not already. Clean separation makes quarterly categorisation far quicker.
4. Get into a monthly rhythm now. Even before you are mandated, recording rent received and expenses each month means the quarterly update is a five-minute review rather than a scramble.
5. Capture digital records of expenses. Keep digital copies or photos of invoices and receipts and log them as you go — repairs, insurance, agent fees, ground rent, service charges, mileage.
6. Decide on agent vs DIY. If an accountant files for you, confirm they will handle quarterly submissions and what that costs. Many landlords self-serve the quarterly updates and use an accountant only for the final declaration.
7. Consider HMRC's testing phase. A voluntary pilot is open before mandation. Joining early, with simple affairs, lets you learn the software with no penalties for getting the rhythm wrong.

Frequently asked questions

Will I pay tax more often under MTD?

No. Quarterly updates are reports, not payments. Your tax is still due on 31 January (and 31 July for payments on account), exactly as now.

I have one small flat — am I affected?

Only if your combined gross self-employment and property income exceeds the threshold for the relevant year. A single flat let for, say, £9,000 a year keeps you well under £20,000 and outside MTD entirely, unless other self-employment income pushes the combined gross figure over.

What if my income drops below the threshold later?

Once mandated, you generally stay in MTD even if income later dips, unless your qualifying income falls below the level for a sustained period and you meet HMRC's conditions to leave. Treat entry as broadly one-way and plan accordingly.

Are there penalties for late quarterly updates?

A points-based late submission penalty system applies under MTD, alongside late payment penalties. The detail is still bedding in, but the principle is clear: build the quarterly habit so you never test it.

Does this replace my Self Assessment login?

For your property and self-employment income, the final declaration replaces the SA return. You will still need to account for other income — dividends, savings interest, PAYE — within that finalisation.

This article is general information from the Filesy editorial team at NexoraOS and is not professional, financial, tax or legal advice. Rules and dates can change; check the latest gov.uk guidance or speak to a qualified accountant about your own circumstances.