Making Tax Digital for Landlords: Quarterly Updates Explained

I know people who've deliberately built up a small portfolio of one-bedroom flats in relatively affordable areas, chasing yields of around 8–9% — genuinely better than anything a bank offers right now, especially with inflation quietly eating into cash sitting in a savings account. I've always admired that; I've just never had spare cash sitting around to do it myself. But the reward comes with a flip side: cross the right threshold on rental income and MTD becomes part of running that portfolio, whether or not you ever set out to run a "business."

The other side of this, which I've seen more often than you'd think, is people becoming landlords by accident rather than by choice — usually through inheriting a property. I know of one couple who inherited a house from a relative and sold it almost straight away, while still living in a council house at the time, and the money didn't stretch much further than a new car and some work on the house they were already in. The relative's intention, as far as anyone could tell, had been to give them a leg up with a property of their own. Whatever you make of that particular choice, it's a familiar pattern: ordinary people become property owners overnight, most don't get proper advice first, and decisions get made quickly rather than calmly. A property landing in your lap, even a share of one, is genuinely rare and can be worth real money for years if it's kept and let out properly rather than sold in a hurry.

Whether to keep, sell, or rent out a property you've inherited is a much bigger decision than this page can cover, and it's not really what this guide is about. But if you do end up renting out a property — through inheritance or any other route — getting your Making Tax Digital position right is part of that decision, not something to work out later. Find out where you stand before you decide anything else.

Multiple properties: one submission, not one per property

If you own more than one property, your UK properties are pooled into a single "UK property business" for MTD purposes. You keep digital records for each property individually, but they roll up into one combined quarterly update covering all of them together — not a separate submission per property. Overseas property is treated differently: it's reported as a separate "foreign property business," alongside your UK submission rather than merged into it.

Furnished holiday lets: the special regime is gone

If you let a holiday property, the separate Furnished Holiday Lettings tax regime was abolished from April 2025. In practice, this means holiday lets now sit inside your ordinary UK property business rather than following distinct rules — whether a property is furnished, unfurnished, or let short-term makes no difference to whether or how MTD applies. The quarterly reporting mechanics are the same as for a standard buy-to-let.

Joint ownership: what actually changes

This is the area with the most genuine confusion, so it's worth being precise:

• Your MTD threshold is based on your own share of the income, not the total. If a property generates £70,000 in gross rent but you own it 50:50 with someone else, your qualifying income from that property is £35,000 — not £70,000 — unless you have other self-employment or property income pushing you over regardless.
• You do not file a joint return. Each joint owner keeps their own digital records reflecting their share and submits their own quarterly updates independently — your co-owner's filing is entirely separate from yours.
• HMRC has relaxed record-keeping for joint owners specifically: you can report gross income from a jointly held property in your quarterly updates and leave the detailed expense breakdown until the year-end finalisation, rather than itemising every transaction quarterly. You can also keep a single digital record per category of income or expense across the jointly held property, rather than a record for every individual transaction.
• The income split follows ownership, with one exception: married couples and civil partners are taxed on a default 50:50 split regardless of actual ownership share, unless you've filed a form with HMRC to declare unequal ownership and change that split. Unmarried co-owners are taxed according to their actual ownership share from the outset.

Mortgage interest and other year-end-only items

Not everything gets reported quarterly. Mortgage interest relief, for example, is given as a basic-rate tax credit rather than a deductible expense, and that adjustment is applied at the year-end finalisation stage — not itemised in your quarterly updates. This is a useful thing to know if you're trying to work out why your quarterly figures don't fully match your expected tax bill; some of the picture only completes at the final declaration.

Letting agents don't handle this for you automatically

If you use a letting agent, it's a common — and costly — assumption that they're taking care of MTD on your behalf. They aren't, unless you've specifically arranged for them (or an accountant) to act as your agent for tax purposes. An agent collecting rent and sending you statements is a different relationship to one authorised to submit your MTD updates. Worth confirming explicitly rather than assuming.