Key takeaways
- Making Tax Digital for Income Tax reached landlords whose gross rent plus self-employment turnover was over £50,000 in the 2024 to 2025 tax year. That cohort was mandated from 6 April 2026.
- The threshold drops to over £30,000 of 2025 to 2026 qualifying income from 6 April 2027, and to over £20,000 of 2026 to 2027 income from 6 April 2028.
- Quarterly updates fall due on 7 August, 7 November, 7 February and 7 May, and each one covers the tax year to date rather than the preceding three months.
- There are no penalty points for a late quarterly update in 2026 to 2027. From the year after, a fourth missed submission deadline costs £200.
- HMRC costed the one-off burden at an average £285 for the over-£50,000 group, rising to roughly £392 a head for the £20,000 to £30,000 cohort joining in 2028.
Making Tax Digital for landlords is a filing obligation, not a new tax. Whether it has reached you turns on a single figure HMRC calls qualifying income, and most people have never worked it out. It is your total rent plus any self-employment turnover, counted before expenses. Mortgage interest, letting fees and repairs do not reduce it.
Over £50,000 of qualifying income in the 2024 to 2025 tax year and you were in from 6 April 2026, when the first cohort started. Over £30,000 in 2025 to 2026 and you join on 6 April 2027. Over £20,000 in 2026 to 2027 and you join on 6 April 2028. At £20,000 or less you are automatically exempt, and you don't have to tell HMRC anything to get that.
HMRC shortens the name to MTD for Income Tax, and the deadlines sit on fixed dates rather than on your accounting year. The next one is 7 November 2026, the second quarterly update of the first mandated year, covering 6 April to 5 October 2026.
Making Tax Digital for landlords started in April 2026, and the threshold falls twice more
HMRC's guidance splits the population into three cohorts, each tested on a different tax year's return. The first trigger is qualifying income over "£50,000 for the 2024 to 2025 tax year", and HMRC's guidance says that group was required to start from 6 April 2026. The second is over "£30,000 for the 2025 to 2026 tax year, you will need to use it from 6 April 2027". The third is over "£20,000 for the 2026 to 2027 tax year, you will need to use it from 6 April 2028".
The Making Tax Digital threshold for landlords is therefore a moving target with a two-year memory, and two things in that structure catch people out. The first is the lag. The test year sits roughly two years before the start date, so the April 2028 cohort is being decided right now by a tax year already in progress. The second is the word "over". The test isn't at or above the threshold, it's above it. Qualifying income of exactly £30,000 in 2025 to 2026 doesn't pull you into the April 2027 group, though it does clear the £20,000 bar for April 2028. The exemption guidance states the same boundary from the other side: you're automatically exempt if your qualifying income is £20,000 or less.
Partnerships sit outside all of this for now. HMRC's exemption guidance says "Partnerships do not currently need to use Making Tax Digital for Income Tax", and the main guidance adds that "Partnerships will also need to use Making Tax Digital for Income Tax in the future. We'll set out the timeline for this at a later date." No date has been published.
Qualifying income is rent before expenses, not the profit you pay tax on
This is where the confusion sits, and it's the reason people assume they're out when they're in. HMRC's definition is blunt: "This is the amount before expenses (also known as turnover), based on the tax return you submitted in the previous tax year." Making Tax Digital for the self-employed runs on the same definition, which matters because self-employment and property are added together into one figure.
So a landlord taking £45,000 of rent and paying £20,000 of mortgage interest has a taxable property profit nearer £25,000 and a qualifying income of £45,000. The expense side never enters the test. If your rental business runs on thin margins, you're in scope considerably earlier than your tax bill suggests. Anyone who has worked through the buy-to-let Section 24 finance cost restriction has met this shape before: a rule that operates on a number larger than the cash you keep.
What's excluded matters just as much. HMRC lists employment under PAYE, "your share of profit from a partnership as an individual partner", dividends including those from your own company, the State Pension and private pensions. A landlord with £22,000 of rent and a £40,000 salary is tested on the £22,000 alone. Those other sources still belong on the return, alongside everything in the UK investment tax rates and allowances table, but they don't decide the start date.
None of this replaces the older test that puts a landlord into Self Assessment at all: the first £1,000 of rental income is tax free, and a return is required once gross rent passes £10,000 before allowable expenses.
Seven income mixes and the date each one joins
The table runs the qualifying income test across seven combinations of rent and self-employment turnover. It assumes income is roughly stable across the three test years, which is the assumption that breaks most often, and it ignores exemptions other than the automatic one at £20,000.
| Gross rent | Self-employment turnover | Qualifying income | First mandated tax year |
|---|---|---|---|
| £11,000 | None | £11,000 | Automatically exempt |
| £22,000 | None | £22,000 | 6 April 2028 |
| £27,000 | £10,000 | £37,000 | 6 April 2027 |
| £28,000 | £25,000 | £53,000 | 6 April 2026 |
| £45,000, with £20,000 of mortgage interest | None | £45,000 | 6 April 2027 |
| £50,000 let jointly, equal shares | None | £25,000 | 6 April 2028 |
| None | £55,000 | £55,000 | 6 April 2026 |
The fourth row is the one that keeps surprising people: £28,000 of rent alongside £25,000 of self-employment turnover. Neither source reaches the first threshold on its own. Added together they make £53,000, which is over £50,000, so that person was mandated from 6 April 2026 and has already missed the 7 August deadline if they never signed up. HMRC's own worked example has the same shape, with "£25,000 from rental income" and "£27,000 from self-employment income" giving a total qualifying income of £52,000.
The update dates are fixed, and 7 November 2026 is the second one
Standard update periods line up with the tax year. 6 April to 5 July is due by 7 August, 6 April to 5 October by 7 November, 6 April to 5 January by 7 February, and 6 April to 5 April by 7 May the following tax year.
There's a calendar alternative for anyone whose accounting period runs 1 April to 31 March, with periods ending 30 June, 30 September, 31 December and 31 March. The four deadlines are identical. The choice is made in the software "before you send your first quarterly update", and once an update has gone in it can't be changed for that tax year.
There is no such thing as an MTD for Income Tax quarterly return, and the difference is not pedantry. The cumulative design is the part that surprises anyone expecting a four-times-a-year version of the tax return. HMRC says "Each time you send a quarterly update it will cover from the start of the tax year to the end of the update period, not just the previous three months." A mistake in the first update gets corrected by the second rather than resubmitted. An update is a summary of totals by income and expense category, not a tax calculation, and "You do not need to make any accounting or tax adjustments before sending a quarterly update."
Separate updates go in for each self-employment and each property business. The return deadline doesn't move: "You must submit your tax return by 31 January following the end of the relevant tax year." So a landlord with one property business files five things a year where there used to be one. What lands on the Self Assessment deadline of 31 January is the bill for the year that ended plus a first instalment towards the one in progress.
A jointly let property halves the figure HMRC tests
Joint ownership is the largest single lever on the test, and it isn't planning. It's simply how the rule reads: your share of jointly owned property income counts, not the whole. HMRC's example describes someone who holds a property with a sibling that "generates £50,000 in income", where both "receive an equal share" and there's no self-employment. The conclusion is that "In this example, your qualifying income would be £25,000." The same £50,000 of rent puts a sole owner in the April 2026 cohort and two equal owners in the April 2028 one.
Where you're only told your share of income after expenses have come off, HMRC assesses that figure instead. And a property source that has run for part of a year has to be scaled up: "you need to annualise your income yourself to work out your qualifying income."
For jointly let properties a quarterly update can carry income only, with the expenses reported after the tax year ends by resending the fourth update.
Nothing is charged for a late update this year, and that ends after 2026 to 2027
The penalty position in the first mandated year is unusually soft, and it's temporary. HMRC's guidance states: "There are no penalties for missing a quarterly update deadline for the 2026 to 2027 tax year." The updates still have to be sent, because the return can't be submitted until they have been.
After that the points system applies. A missed quarterly update or return deadline earns one point. "The penalty point threshold is 4 points", and reaching it triggers a £200 penalty, with a further "£200 penalty each time you miss another submission deadline". Only one point can accrue per deadline, even across several businesses. Below the threshold, HMRC says "we'll automatically remove each point 24 months after the missed deadline".
Late payment is priced separately and isn't points based. For 2026 to 2027 there's no penalty on a payment up to 15 days late. Between 16 and 30 days the charge is "3% of the tax owed at day 15". From day 31 it's that 3%, plus 3% of the tax owed at day 30, plus "an annual rate of 10% per year on the outstanding amount, charged daily from day 31". For 2027 to 2028 both percentages become 4%. A first year in the regime gets 30 days rather than 15 before penalties start, and HMRC gives that concession once.
Half the first cohort still hadn't filed by the first deadline
Take-up is the most useful read on how this is going, and the two official counts of the cohort don't agree. HMRC's impact note of 2 September 2025 forecast "around 780,000 people with business or property income over £50,000" joining from April 2026. The press release of 23 July 2026 described "More than 864,000 sole traders and landlords within scope". The later figure comes from the live service rather than a forecast, so it's the one the compliance arithmetic should use.
Against that 864,000, more than 436,000 filed a first update, which is roughly 50.5% of the cohort. Sign-ups ran ahead of filings at over 570,000, or about 66.0%, leaving something like 294,000 people in scope who hadn't signed up at all by 12 August 2026. HMRC's answer was to start signing people up itself from September 2026, "in stages over the coming months".
Craig Ogilvie, HMRC's Director of Making Tax Digital, called the August position "an important milestone in the move to a more modern tax system". Both things are true. A service taking 436,000 filings in its first quarter works, and one that half its mandated population hasn't used isn't yet tested, because missing the deadline costs nothing in year one.
The cost per head rises as the threshold falls
HMRC has costed each phase, and the pattern in the chart runs the wrong way for the smallest businesses. Across the first two cohorts the impact note gives "an estimated average transitional cost of £320 and an average annual additional cost of £110". Split out, the over-£50,000 group carries an average one-off cost of £285 and £115 a year. The £30,000 to £50,000 group carries £350 one-off and £110 a year.
For the £20,000 to £30,000 group HMRC published totals rather than averages: "a transitional cost of £380 million and a net increase in the continuing costs of tax compliance of £101 million", across "approximately 970,000 additional individuals". Divide one by the other and the one-off cost is about £392 a head, with about £104 a year after it. That is roughly £107 more, once, than the group reporting more than double the income, and it makes the £20,000 to £30,000 band the most expensive of the three to join.
The mechanism is not mysterious. The fixed parts of complying, choosing software, learning it, setting up digital records, don't scale down with turnover. HMRC put the transitional cost across the first two cohorts at £561 million, and it lands hardest on the people with the least margin to absorb it.
The strongest case against it is in HMRC's own appraisal
The serious objection isn't that digital records are hard. It's who pays for them. HMRC's Accounting Officer assessment of 4 June 2025 states that "The MTD Programme's overall lifecycle costs are estimated at £4.3 billion, of which £1.4 billion are public sector costs and £2.9 billion customer costs." The benefit side is lifecycle additional tax revenue savings of £5.5 billion.
So the people buying software and changing how they keep records carry £2.9 billion of a £4.3 billion programme, which is 67.4% of the cost, against £5.5 billion of additional revenue that goes to the Exchequer. The headline return looks comfortable, and the assessment says so: "With the revised ROI of 3.8:1 I am satisfied that MTD comfortably meets the Value For Money" test.
That ratio leaves the landlord's side out by design. The same page says the return on investment "excludes customer costs and compares only the costs to government of delivering MTD against exchequer benefits". The measure that does count customer costs is the benefit cost ratio, and it "remains positive at 1.3:1" after "reducing from 2.2:1 to 1.3:1". The first ratio counts only what the government spends. The second counts what everyone spends, and on that measure the benefits exceed the costs by 30% rather than by a factor of nearly four. Both sides are estimates, which the assessment also says, since the revenue benefits "are sensitive to changes to the tax gap, and customer costs to wider market factors".
Set against that, the guidance names one thing a landlord gets back. After each update "you'll be able to get an estimate of your tax bill for your self-employment and property income", with PAYE income HMRC already holds folded in. For someone whose tax bill has always arrived as a January surprise, in-year visibility is a real change. The recurring price of it, on HMRC's own costing, is about £110 a year.
What these making tax digital landlords rules cannot tell you
Three limits are worth stating plainly. The first is that every threshold is tested on a return you've already filed, so the table only holds if income is stable. One year with a large one-off receipt can pull you in, and HMRC annualises a short sole-trader accounting period. A landlord who sold a property mid-year can still be tested on income from the source that ceased.
The second is that the £20,000 phase is further from certainty than the other two. It "was announced at Spring Statement 2025", and the policy paper setting out the regulations was published on 24 March 2026 with an operative date of 6 April 2028. That is law on the page with a start date two years out. The £50,000 phase is already running and the £30,000 phase begins in April 2027, so those two are the firm ones.
The third is that the cost figures are averages across very different people. HMRC says those "already operating MTD for VAT or using digital tools for business administration may incur relatively little cost". An average of £392 says nothing about the spread, and the data cannot tell you which half of it you fall in.
What would change the answer
The £20,000 threshold is the most likely thing to move the table. It's the phase with the thinnest margin between the compliance cost and the income being reported, and the one HMRC has costed at the highest price per head. The signal is a Budget or Spring Statement line deferring or raising it, not commentary about one.
The second signal is the penalty switch after 2026 to 2027. On-time filing ran at about 50.5% by the first deadline in a year when missing it cost nothing. If a similar share misses a deadline in a year when the fourth miss costs £200, the politics of the programme change quickly. The number worth watching isn't sign-ups, which HMRC can generate by signing people up itself, but on-time updates.
The third is partnerships, which remain outside the qualifying income test with no published start date. For a landlord choosing how to hold property, that moves the start date more than the rent does. Whether the resulting bill is larger or smaller is a separate question from when it has to be reported, and the landlord tax changes in April 2027 are where that side of the sum sits.