MTD for one rental property: a beginner's walkthrough

If you own a single rental property and you have started hearing the words "Making Tax Digital", you might feel a bit uneasy. For most landlords with one property, this is far less dramatic than it sounds, and you almost certainly do not need to rush out and hire an accountant to cope with it.

First, do you even need to do this yet?

Making Tax Digital for Income Tax (sometimes called MTD ITSA) is being phased in based on your qualifying income, and this is the bit people get wrong. Qualifying income means your gross rental and self-employment income before you take off any expenses. It is your turnover, not your profit.

The start dates work like this:

• Over £50,000: you join from 6 April 2026
• Over £30,000: from 6 April 2027
• Over £20,000: from 6 April 2028
• £20,000 or under: not required to join yet

So a landlord whose property brings in £18,000 a year in rent is not in scope at the moment, even though £18,000 is a meaningful amount of money. You can read the official detail on the GOV.UK Making Tax Digital for Income Tax guidance, and we have also broken the bands down in our guide to MTD income thresholds.

One thing to flag: the threshold is measured on gross rent, not the profit you keep. It is easy to assume you are under the line because your profit is modest, when your turnover tells a different story.

A worked example: meet Sarah

Sarah lets a two-bed flat in Leeds for £1,250 a month, which is £15,000 a year in rent. Her mortgage interest, letting agent fees, insurance and repairs come to around £6,000, so her actual profit is closer to £9,000.

Because her gross rent is £15,000, below £20,000, Sarah is not required to join MTD yet. Her profit does not come into the threshold calculation at all.

Now imagine Sarah also does a bit of freelance graphic design on the side, earning £12,000 gross from that. MTD adds her qualifying income together: £15,000 rent plus £12,000 self-employment gives £27,000. That tips her over £20,000, so she would be brought in from 6 April 2028. If you have income from more than one source, our guide on MTD when you have other income explains how it is combined.

What you'll actually do once you're in

Once you are required to follow MTD, three things happen. You keep digital records of your rental income and expenses. You send HMRC four quarterly updates during the tax year. And after the tax year ends, you submit one tax return.

Together, the quarterly updates and the tax return replace the old Self Assessment return for that income. You are not doing Self Assessment as well as MTD. MTD takes its place.

From 2025-26 onwards the quarterly updates are cumulative year-to-date totals. Each update is a running tally of the year so far, not four separate little tax returns. If you make a small slip in quarter one, the next update restates the correct year-to-date figure and tidies itself up.

The dates to put in your diary

The standard quarterly periods end on 5 July, 5 October, 5 January and 5 April. The matching deadlines to send each update are:

• 7 August
• 7 November
• 7 February
• 7 May

Then the tax return is due by 31 January following the end of the tax year, the same date Self Assessment always used. The rhythm of your year changes, but that big January date stays familiar. There is more in our MTD deadlines guide, and you can cross-check everything against GOV.UK's MTD timeline.

What if you own the property with someone else?

If you jointly own a rental, say with a spouse or sibling, each owner reports their share of the income, split by ownership share. The threshold is measured per person, not per property.

So a couple who jointly own a flat producing £36,000 of gross rent would each count £18,000 toward their own threshold, assuming a 50/50 split. Individually, that is below £20,000, so neither is dragged in purely on this property unless their other income pushes them over. A lot of landlords do not realise this.

Do you need an accountant?

For a single, straightforward rental, many landlords manage this themselves with the right software. That is what Quarterwise is built for. It keeps your digital records and files both the quarterly updates and the tax return to HMRC.

If your affairs are more tangled, with multiple properties, a limited company or big one-off costs, a good accountant is worth their fee, and MTD software still works alongside one. We cover that in using MTD software with an accountant.

One property, decent records, a few dates in the diary. That is the shape of it.

This article is general information, not tax advice. Always check your own position with HMRC or a qualified accountant.