Foreign property is where MTD gets genuinely difficult. The rules are not far off UK property, but most software and guidance assume all your property is here.
Add a Barcelona apartment, a villa in the Algarve or a studio in Dubai and the standard workflow breaks: it has to be filed separately from your UK property, every euro or dollar converted into pounds, and your true UK tax bill cannot be settled until the relief for tax paid abroad is applied at the year end.
First, a point that catches people out. A UK resident who lets property abroad is not a non-resident landlord. The Non-Resident Landlord Scheme is for people who live overseas and let property here, so it does not apply to you.
I deal with this every day. A large proportion of our clients own property abroad and building RentalBux to handle foreign property was one of our earliest decisions. This guide is what I would tell a landlord sitting across my desk with an overseas portfolio and a list of MTD questions.
This guide assumes you already know how quarterly updates, the Final Declaration and the qualifying income threshold work. If not, start with our complete MTD for Income Tax guide, then come back for the foreign property layer.
Is Your Foreign Property a Qualifying Business for MTD?
Under MTD, all your overseas rental properties are treated as one qualifying business, separate from any UK property you hold.
A UK resident landlord who owns both files two sets of quarterly updates: one for the UK property business, covering every UK property combined, and one for the foreign property business, covering every overseas property combined, regardless of how many countries are involved.
Key Fact
A landlord with a Spanish apartment, a French villa and a US condo files one combined foreign property quarterly update, not three updates by country. All foreign rental income and expenses are aggregated into a single business for MTD. This mirrors the Self Assessment position, where foreign property income is reported on the SA106 foreign pages as one property business.
The UK and foreign updates are filed separately, through different HMRC endpoints. For the qualifying income threshold test, though, they are added together, along with any self-employment turnover.
So the threshold test combines everything, while the quarterly reporting keeps the two property businesses apart. Hold on to that distinction, because it catches people out in both directions.
How Foreign Rents Count Towards the Qualifying Income Threshold
Your gross foreign rental income counts towards the qualifying income threshold. It is aggregated with your UK gross rents and any self-employment turnover.
Worked Example
James runs a consulting business with £60,000 of gross turnover, owns three UK buy to lets producing £42,000 of combined rent, and lets a Barcelona apartment to tourists for £18,000 a year.
His aggregate qualifying income is £120,000, well above the threshold. Once mandated, he files three quarterly updates each quarter: self-employment, UK property and foreign property. That is twelve quarterly filings a year, plus one Final Declaration.
Foreign property is mandated on the same timetable as everything else: MTD applies from 6th April 2026, when your combined qualifying income is over £50,000, from 6th April 2027, when it is over £30,000, and over £20,000 from 6th April 2028. The first wave is already in effect.
You can confirm your own position with HMRC's eligibility guidance. The point to take from this section is this: Overseas rent is not separate from the threshold but a part of it.
Are Your Foreign Rents Taxable in the UK Yet?
The UK taxes its residents on worldwide income, so foreign rental profit is normally taxable here whether or not you bring the money home.
Once Exception
Since 6th April 2025 the remittance basis has been replaced by the four-year foreign income and gains regime. A qualifying new arrival who has not been UK resident in the previous ten years may claim to have their foreign income, including overseas rental profit, exempted from UK tax for their first four years of UK residence.
If you fall within that regime, your reporting position is different, and you should take advice before assuming the standard rules apply to you. For everyone else, your foreign rents are taxable in the UK, and the rest of this guide is what you need.
How MTD For Foreign Property Owners Look Like
Converting Foreign Income and Expenses to Sterling
Every figure you file with HMRC must be in sterling, converted using one method that you apply consistently to every foreign property for the whole year.
HMRC accepts three approaches.
Transaction date rate: The exchange rate on the date of each individual transaction. This is the most accurate method and the most time-consuming, because it needs a spot rate for every rent receipt and every payment.
Period average rate: HMRC publishes monthly average exchange rates on GOV.UK. Using the monthly or quarterly average for all transactions in that period is an accepted simplification.
Actual conversion rate: Where you actually convert currency at a point in time, the rate your bank or currency service gave you can be used.
Whichever method you choose must be applied consistently across all your foreign properties for the year. Switching between methods or between properties to pick up a more favourable rate is not allowed. Choose a method, write it down and stick to it.
What I Recommend
For most clients I recommend HMRC's published monthly average exchange rates. They sit on GOV.UK, they are easy to defend in an enquiry because HMRC published them, and they remove the need to look up a spot rate for every line.
HMRC's own approach to exchange rates for tax purposes is set out in its Business Income Manual at BIM39515. Traders have flexibility in choosing exchange rates. They may use rates quoted by their bank, London closing rates, or the monthly average rates published by HMRC for VAT purposes, provided the chosen method is in accordance with generally accepted accounting practice (GAAP). That gives a sensible balance between accuracy and effort.
Convert before you file, not after. Your digital records should store the sterling figure alongside the original foreign currency amount. The quarterly update reports only the sterling, so HMRC never sees the euro or dollar figures.
If you use a feed from a foreign bank, check whether your software converts automatically at a rate you can set, or whether it imports the foreign currency and leaves you to convert by hand. Across four quarters, that difference in workflow is significant.
Tracking Each Property by Country
Track every foreign property by country from the first quarter, because HMRC identifies each property by a country code and your year end double tax relief is calculated country by country. HMRC's foreign property design includes a unique property identifier for each overseas property, linked to a country code.
When your software submits a foreign property for the first time, it sends the property name and country code and receives an identifier in return. This identifier is then used in every later submission for that property.
This is a real difference from UK property, where individual properties are not separately identified in the submission. For foreign property, HMRC wants to know which property, in which country, the income relates to.
Not every part of this is fully enforced yet, but it is expected to become mandatory, so set each property up with its country code from the start.
Even if HMRC did not require it, there are strong reasons to track income and expenses by country inside your software:
Double tax relief. This is the credit that stops the same rental profit being taxed in both the country where the property sits and the UK. It is calculated country by country, so without per-country figures, the year-end relief claim becomes very hard to do accurately.
Different cost profiles. Management fees, local property taxes and compliance costs vary by jurisdiction. Per country tracking shows you which properties, in which countries, are actually making money.
Local tax returns. Many countries require you to file a local return on the rent. The data the Spanish return needs differs from what the French return needs. Per country records serve both.
Currency. Different countries mean different currencies and rates. Per country tracking makes sure the right rate is applied to each.
Tip: Set your software up to track by country and by individual property from day one. Reconstructing per country and per property splits from a combined record at year end, especially for the double tax relief calculation, is one of the most time consuming jobs in property tax. Getting the structure right at the start costs nothing. Fixing it later costs hours. |
Filing Your Quarterly Updates for Foreign Property
The foreign property update follows the same rhythm as everything else under MTD: cumulative year to date totals, filed by the same deadlines of 7 August, 7 November, 7 February and 7 May. The mechanics are identical to your UK property update. Four things are different.
Everything is in sterling. The converted amounts, not the original currency, are what sit in your digital records and your update. HMRC does not accept euros, dollars or any other currency.
Fewer expense categories. HMRC uses a simpler category structure for foreign property than for UK property, which reduces the categorisation work each quarter.
Section 24 applies to overseas residential property. Finance costs on overseas residential property are subject to the same basic rate credit restriction as UK residential property, known as Section 24 after section 24 of the Finance (No. 2) Act 2015. They go in the residential property finance costs category, not in general expenses. People assume this does not reach overseas property. It does.
Simpler categorisation is always available. For UK property, simpler categorisation is only available below the £90,000 VAT registration threshold. For foreign property it is available whatever the income. That means you can report just three figures a quarter: total income, total expenses excluding finance costs, and residential property finance costs. For an overseas portfolio, where mapping local costs to HMRC's UK focused categories would be awkward, this is a real saving.
What a quarterly update looks like: You let an apartment in Barcelona. For the quarter to 05/07 you receive rent of €4,500 and pay a management fee of €450, local property tax (IBI) of €300, insurance of €200 and mortgage interest of €600. Using HMRC's published average for the period, say €1.17 to £1: |
Category | EUR | GBP filed |
|---|---|---|
Total property income | €4,500 | £3,846 |
Total expenses (excluding finance costs) | €950 | £812 |
Residential property finance costs | €600 | £513 |
Only the sterling column goes to HMRC. The euro figures stay in your records, and your software should keep both for audit purposes.
Claiming Double Tax Relief at the Year End
Most UK residents with foreign property pay tax on the rent twice over: once in the country where the property sits, and again in the UK on the same profit. Double tax relief, given as foreign tax credit relief, stops that. It is claimed at the Final Declaration, never in the quarterly updates. HMRC's overview of relief where you are taxed in more than one country is at Tax on foreign income.
The mechanism is straightforward in principle. The UK taxes your worldwide income, including the foreign rental profit. You then claim a credit for the foreign tax you have already paid, capped at the amount of UK tax due on that same income.
If the foreign tax is lower than the UK tax on the income, you pay the difference here. If the foreign tax is higher than the UK tax, the excess cannot be refunded or used to reduce tax on other types of income. Furthermore, unlike certain corporate tax scenarios, individuals cannot carry forward this excess foreign tax to future tax years; it is effectively lost.
One practitioner point that is easy to miss: where the foreign tax exceeds the UK tax on the income, claiming the foreign tax as a deduction against the rental profit rather than as a credit can sometimes give a better result, because it can create or increase a loss to carry forward. It is worth comparing both before you file the Final Declaration.
The relief is worked out country by country. A landlord with property in Spain and the US calculates the Spanish relief separately from the US relief. This is why per country tracking is not optional: without it, the calculation cannot be done properly.
Warning
The in year tax estimate your software shows after each quarterly update does not account for double tax relief. For anyone who has paid foreign tax, that estimate overstates the UK liability, sometimes substantially. Treat it as a rough gross figure, not your real bill. The accurate position only appears at the Final Declaration once the relief is applied.
