MTD for joint landlords

1. Start with each person, not the property

A jointly owned rental can look simple on paper: one property, one letting agent statement, one mortgage, and one bank account. Making Tax Digital for Income Tax looks at it differently. HM Revenue and Customs (HMRC) tests each landlord separately, because each person reports their own share of the rental income on their own tax return.

That is where mistakes start. A couple might see £62,000 of rent and assume the property is caught from April 2026. If the rent is split equally, each person has £31,000 of gross property income before expenses. That may put them outside the £50,000 first phase, but inside the later £30,000 phase, depending on the tax return HMRC uses for the look-back test.

The same property can also bring one owner into Making Tax Digital before the other. If one landlord has self-employment income as well as rent, their combined gross income may cross the threshold even where the other owner's rental share does not.

2. How the MTD threshold works for jointly owned property

Making Tax Digital for Income Tax applies by looking at qualifying income. For this purpose, qualifying income means the gross income from self-employment and property before expenses. Mortgage interest, agent fees, repairs, mileage, capital allowances and the property allowance do not reduce the threshold figure.

• From 6 April 2026: the rules apply if the relevant return shows qualifying income over £50,000.
• From 6 April 2027: the threshold drops to over £30,000.
• From 6 April 2028: the threshold drops to over £20,000.

For joint property, start with each person's share of the gross rent. Then add that person's gross self-employment income and any gross income from properties they own solely. That combined figure is compared with the threshold.

There is one narrower HMRC exception. If you jointly own a property and only receive notice of your share after expenses have already been deducted, HMRC says it will use that notified figure for the qualifying-income test. Keep the statement or calculation that shows how the figure was reached; the exception is about what you were notified of, not just what arrived in your bank account.

The return HMRC uses matters. The £50,000 phase uses the 2024/25 Self Assessment return. The £30,000 phase uses the 2025/26 return. The £20,000 phase uses the 2026/27 return. Current-year rent is still important for planning, but the formal start date comes from the return HMRC checks.

3. Digital records for jointly let property

The normal Making Tax Digital rule is that digital records should hold the transaction date, amount and category. For joint landlords, HMRC allows two useful simplifications because one person often receives the rent or pays the costs before the figures are split.

First, each landlord only needs digital records for their own share of the joint-property income and expenses. You do not have to duplicate the other owner's share in your own software.

Second, a joint landlord can keep less detailed records for the jointly let property. Instead of recording every rent receipt line by line, you can create one digital record for each income category in the update period. Instead of entering every shared expense as it happens, you can create one digital record for each expense category for the tax year.

That simplification only applies to the jointly let property. If you also own another rental property in your own name, the income and expenses for that solely owned property need to be kept and reported under the normal rules.

4. What goes into the quarterly updates

Quarterly updates are summaries sent from compatible software. They are not tax returns, and they do not calculate the final tax bill. They send totals for the income and expense categories used in the digital records.

Joint landlords get a choice for jointly let property. You can include income and expenses in the quarterly updates, or you can include income only and bring in the jointly let property expenses before the tax return is submitted.

If you use the income-only route, the expenses still matter. They are not ignored and they are not optional. They need to be added before the tax return is submitted, either by resending the fourth quarterly update or by adjusting the category totals and keeping the digital records up to date. Because quarterly updates are cumulative, a later update can also correct the year-to-date figures without resending an earlier update.

Calendar update periods are also available, but they need to be chosen in the software before the first quarterly update is sent. Once an update has gone in for the tax year, you cannot change between standard and calendar periods for that year.

5. Agent statements, mortgages and shared costs

A bank feed is not enough for a jointly let property. If a letting agent collects the rent, deducts fees or repairs, and pays out the net amount, each owner's records should still start with the gross rent and the separate deductions on the agent statement before the split is applied.

The account receiving the rent does not decide who is taxable. A repair paid from one owner's card does not automatically belong only to that owner either. Keep a short calculation showing the full property figures, the agreed tax split and any costs paid personally, so convenience payments do not change the reported shares by accident.

Mortgage payments need particular care. For individual residential landlords, mortgage interest is a finance cost and capital repayment is not a property expense. HMRC allows mixed capital-and-revenue payments to be adjusted before the tax return is finalised, but separating interest and capital while the records are built gives cleaner quarterly figures.

6. Form 17 and ownership shares

Form 17 is easy to mix up with Making Tax Digital, but it is a separate rule. It decides how rental income is split for tax between spouses or civil partners who live together and jointly own property.

The default position for spouses and civil partners living together is a 50/50 income split, even where the practical arrangement feels different. If the couple genuinely hold the property and its income in unequal beneficial shares, they can submit Form 17 so the income is taxed in those actual proportions instead. Form 17 does not create the split; it tells HMRC about a split that already exists and needs supporting evidence. The form must be signed by both people and reach HMRC within 60 days of the declaration.

The 60-day limit is strict. A late form does not backdate the unequal split. That matters for Making Tax Digital because the rental share used on the tax return is also the share you use when checking the threshold.

Form 17 is only for spouses and civil partners. Unmarried joint owners, siblings, parents and adult children do not use it. Their tax position follows their entitlement to the income, supported by the ownership papers and the way the arrangement works in practice.

7. Common examples

8. What to set up now

The cleanest setup is boring, which is usually what good tax admin looks like. Each owner needs a clear view of their share, the software needs to know whether the property is jointly let, and the year-end tax return should not depend on rebuilding the figures from old agent statements.

1. Confirm the income share. Start with the tax position, not the bank account. Check legal ownership, beneficial ownership, any declaration of trust, and whether Form 17 is needed.
2. Check each owner's threshold separately. Use the gross rental share and add any gross self-employment income. Do not test the property total on its own.
3. Choose the record route. Decide whether the quarterly updates will include income and expenses, or income only with expenses brought in before the tax return.
4. Set up the software once. Use HMRC-compatible software or bridging software that can handle property income and agent workflows properly. If a spreadsheet is used to split the figures, keep the source records, formulas and submission totals connected.
5. Keep the source paperwork tidy. Letting agent statements, mortgage-interest certificates, repair invoices, insurance schedules and service-charge statements should all support the digital records.
6. Authorise the agent early. Existing Self Assessment authorisation can be used for Making Tax Digital if the relevant Self Assessment agent code has been added to the Agent Services Account. Each owner who has to use MTD still needs their own sign-up and submission route.

The goal is not to create more admin. It is to stop the quarterly updates, Form 17 position and final tax return drifting into three different versions of the same rental year.

9. Questions to answer before filing

• What is each owner's share of the gross rent on the return HMRC is using?
• Have you been notified of a post-expense figure for your share, rather than the gross rent?
• Does either owner also have gross self-employment income?
• Are spouses or civil partners relying on an unequal split, and has Form 17 reached HMRC within 60 days?
• Does the bank feed tie back to the gross rent and deductions on the letting-agent statement?
• Have costs paid personally by one owner been allocated without changing the tax split by accident?
• Will jointly let property expenses be included in the quarterly updates, or brought in before the tax return?
• Does either owner have solely owned rental property that needs full quarterly income and expense reporting?
• Are mortgage interest and capital repayments separated correctly?
• Is the software approved for Making Tax Digital for Income Tax, and does it support the filing you need?
• Can your accountant access the Making Tax Digital record before the first update is due?

10. FAQs

For the wider rules, read our Making Tax Digital for Income Tax guide. For landlord tax planning beyond Making Tax Digital, see our property tax accountants service.