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Why is this an agent's problem, not just a landlord's?
Because you're the one already holding the data. Rent collected, fees taken, expenses recorded, all of it sits in your client accounting system. Landlords know that. So when HMRC starts asking them to file quarterly, the first call isn't to their accountant. It's to you.
That's not a burden agents asked for. It's one that's landing anyway, so it's worth understanding properly rather than fielding it one confused phone call at a time.
What is Making Tax Digital for Income Tax, and who does it apply to?
Making Tax Digital for Income Tax Self Assessment, usually shortened to MTD, requires landlords and self-employed people above a set income threshold to keep digital records and submit updates via an approved provider, rather than filing one return a year.
The rollout is happening in stages, based on gross income from property and self-employment combined, before expenses:
From April 2026, landlords earning over £50,000 are required to comply. This is already live. From April 2027, the threshold drops to £30,000. From April 2028, it drops again to £20,000.
Each stage pulls a wider group of landlords into scope. Landlords below £20,000 stay outside MTD for now, but the direction is obvious, and agents with a mixed portfolio of landlord sizes should plan on this widening, not staying still.
What does quarterly filing actually change?
Before MTD, a landlord filed once a year. Under MTD, that becomes five submissions: four quarterly updates plus a final declaration. The numbers underneath haven't changed. Rent is still rent, expenses are still expenses. What's changed is how often that information has to be packaged up and sent to HMRC, and in what shape.
That last part is where the friction sits. HMRC wants digital records with a clear digital link between where the data starts and where it ends up. A landlord's rental statement can be entirely correct and still not qualify, because being right and being in the format MTD software can read aren't the same thing.
Why does this create a manual re-keying problem?
Because for a lot of agencies, the two systems don't talk to each other. A landlord's statement gets produced correctly in the agency's client accounting system, and then someone, the agency, the landlord, or their accountant, has to sit down and manually type that information into separate MTD software. Four times a year, per landlord, on top of everything else already on the list.
The data isn't wrong. It's just stuck in one place and needed in another, and right now that gap gets closed by hand, one statement at a time.
How ready are landlords actually?
Less ready than they think. A May 2026 survey of 500 UK landlords and letting agents found 68% felt confident they'd be ready for MTD, but only 31% had MTD-ready software in place. One in four were still keeping records on paper or in spreadsheets.
That gap between feeling ready and being ready is exactly where things tend to go wrong, usually a week before a filing deadline, not a month before it.
What should letting agents do now?
Work out how many managed landlords are already in scope. Anyone over £50,000 gross from property and other income has to comply now, not from some point in the future. That's the group worth identifying first, not last.
Check whether your client accounting data can reach HMRC in the format required, or whether it currently relies on someone transferring it by hand. If it's the second one, that's worth fixing before quarterly deadlines start stacking up, not once they already have.
Decide who's filing. Some landlords will want their accountant to handle submissions. Others will assume the agency has it covered. Working out which is which now beats having that conversation for the first time in the middle of a live filing window.
Don't wait for the threshold to drop to £30,000 before this feels relevant.
It's also worth remembering this isn't happening in isolation. Agencies across the UK are managing the same landlords, and the ones who get a landlord signed up to their software of choice first are the ones who keep that relationship. With Nexus and PayProp, a landlord can see their whole portfolio in one place, which makes signing up early less of a compliance chore and more of a reason to stay.
Key questions answered:
What is MTD? Making Tax Digital for Income Tax Self Assessment is a UK government requirement for landlords and self-employed people above a set income threshold to keep digital records and submit quarterly updates to HMRC, rather than filing a single annual return.
When does Making Tax Digital start for landlords? It started in April 2026 for landlords earning over £50,000 gross from property and self-employment combined. The threshold drops to £30,000 in April 2027 and £20,000 in April 2028.
Do letting agents have to file MTD returns on behalf of landlords? Not by default. MTD is a landlord's personal tax obligation, and the landlord or their accountant is responsible for filing. In practice, letting agents are often the first point of contact because they hold the underlying rent, fee and expense data landlords need.
How many filings does MTD require compared to the old system? MTD replaces one annual tax return with four quarterly updates plus a final declaration, five submissions a year rather than one, using the same underlying financial data.
Why do agents need to manually enter data for MTD if it's already in their system? Because the data an agency holds isn't automatically in the digital format, with the digital links, HMRC requires. Unless an agency's client accounting system connects directly to MTD-compliant software, that gap gets closed manually, which is where most of the added admin comes from.
