Making Tax Digital for Landlords: Complete 2026 Guide

Making Tax Digital for Income Tax, usually shortened to "MTD for IT" or just "MTD", is the biggest change to how landlords report rental income to HMRC since Self Assessment itself was introduced. It is no longer a distant proposal: the first wave of landlords are required to join from April 2026, and many more will follow over the next two years. This guide explains what MTD actually involves, who it applies to and when, and the practical steps you can take now to get ready without a last-minute scramble.

What Making Tax Digital for Income Tax actually is

MTD for Income Tax replaces the familiar once-a-year Self Assessment tax return, for those it applies to, with a more frequent digital reporting routine. Instead of gathering everything up at the end of the tax year and submitting one return, you will need to keep digital records of your income and expenses throughout the year, send HMRC a quarterly summary of your figures using compatible software, and then submit a final declaration after the year ends to confirm and finalise your tax position.

HMRC's stated reasoning is that more frequent, digitally-recorded reporting reduces errors, gives taxpayers a clearer real-time view of their tax position, and closes the "tax gap" caused by mistakes and estimates in paper-based or spreadsheet record-keeping. Whatever you think of the reasoning, the practical reality for landlords is the same: if MTD applies to you, the way you keep records and report to HMRC is changing, and digital, software-based record-keeping stops being optional.

The phased rollout: who joins, and when

MTD for Income Tax is being introduced in stages, based on your total gross income from self-employment and property combined. It is important to understand that this threshold is based on gross income, the total rent and other qualifying income you receive before deducting any expenses, not your profit. A landlord with a large portfolio and modest profit margins can easily have a gross income well above the threshold even if their actual taxable profit is comparatively small.

• Phase 1, from April 2026: mandatory for anyone with gross qualifying income (rental plus self-employment combined) over £50,000.
• Phase 2, from April 2027: the threshold drops to £30,000, bringing in a significantly larger group of landlords and self-employed people.
• Phase 3, from April 2028: the threshold drops again to £20,000, bringing in most landlords with even a modest portfolio or a single well-let property.

HMRC determines whether you are in scope for a given year by looking at the gross income reported on an earlier tax return, so the figures that matter are usually those from a tax year that has already ended by the time the new phase begins. If your income is close to a threshold, or fluctuates from year to year, it is worth checking your position well in advance rather than assuming you are safely outside scope.

What you will actually need to do

If MTD applies to you, there are three main ongoing obligations to get used to. None of them are individually complicated, but together they represent a real change of habit from the old once-a-year routine.

• Keep digital records. Income and expenses need to be recorded digitally as they happen, using compatible software, rather than gathered up from paper receipts and spreadsheets at year end. This does not mean you need to scan every receipt the moment it lands, but your underlying records of rent received and costs incurred need to live in a digital system that can produce the figures HMRC requires.
• Submit quarterly updates. Four times a year, you will send HMRC a summary of your income and expenses for that quarter, generated directly from your digital records via compatible software. These are cumulative running totals rather than mini tax returns, and they do not themselves produce a final tax bill.
• Submit a final declaration. After the tax year ends, you confirm your total income, add any other relevant information (such as other income, reliefs or adjustments), and finalise your tax position for the year. This step effectively replaces the old Self Assessment return for those in MTD.

One reassurance worth holding onto: MTD changes how and how often you report, not the underlying tax rules. The way your rental profit is calculated, the expenses you can claim, and the operation of rules like Section 24 mortgage interest restriction are unaffected by MTD itself. If you understand your tax position now, MTD does not change the arithmetic, only the reporting rhythm.

Working out when MTD applies to you

Because the rules phase in gradually and are based on gross income from an earlier year, it is easy to misjudge your own start date. A few practical pointers:

• Add together your gross rental income and any self-employment income, the threshold applies to the combined total, not to property income alone.
• Use gross figures (total rent received) rather than profit after expenses, this is the most common point of confusion and catches out landlords with high turnover but thin margins.
• If you are close to a threshold, plan as though you will be brought in at the next phase rather than waiting to be told, getting your records digital early costs you very little and removes the risk of a rushed transition.
• HMRC will write to those it believes are affected, but the responsibility for being ready sits with you, not with HMRC's notification letter arriving in time.

Practical steps to get ready

Whether your start date is imminent or a couple of years away, the groundwork is the same, and there is real benefit in starting early rather than waiting until the deadline is close.

• Choose compatible software. A range of tools designed specifically for landlords, such as Landlord Studio and Hammock, are built to record rental income and expenses digitally and produce MTD-compatible submissions. Look for software that fits how you already manage your properties, rather than forcing a complete change of system.
• Get your records digital now. If you currently rely on paper files or a personal spreadsheet, start moving income and expense records into digital software well before your MTD start date. The earlier you build the habit, the less disruptive the transition will feel when quarterly updates become mandatory.
• Talk to your accountant early. Many accountants are already adapting their processes for MTD and can advise on software choices, how quarterly submissions will fit around your existing arrangements, and whether your gross income is likely to bring you into scope sooner than you expect.
• Build a simple routine. Set aside a short, regular slot, weekly or monthly, to record rent received and log expenses as they happen. This turns MTD from a quarterly scramble into a habit that barely registers.

Common questions and concerns

Does MTD mean I will pay more tax? No. MTD changes the way you report your figures to HMRC, not the rules that determine how much tax you owe. Your taxable profit is still calculated the same way, using the same allowable expenses and reliefs as before.

What if my income varies a lot from year to year? Because eligibility is based on gross income from an earlier tax year, you could move in and out of scope over time as your portfolio or income changes. It is worth checking your position each year rather than assuming a single check settles the matter permanently.

Can I still use an accountant? Yes. MTD does not require you to do everything yourself. Many landlords will continue to work with an accountant or bookkeeper, who can either manage the digital records and submissions on your behalf or work alongside software that you operate day to day.

What happens if I do nothing? Once MTD becomes mandatory for you, failing to keep digital records or submit updates on time can lead to penalties, in much the same way that late or incorrect Self Assessment returns can. Getting set up before your start date is the simplest way to avoid this.