A UK rental property on a US tax return goes on Schedule E in dollars, with depreciation over 30 years rather than the 27.5 years a US house gets. Mortgage interest is fully deductible for the IRS while HMRC restricts it to a 20% reduction, so the same flat usually shows two different profits. UK tax for US citizens has to reconcile them.
That divergence is the whole problem. A property can be loss-making in America and profitable in Britain in the same year, which leaves UK tax to credit against US tax that does not exist — and a carryover nobody planned for.
Reporting UK rental property on Schedule E
Rent is income when received, translated into dollars. Expenses follow US rules, not UK ones, so the figures on your Self Assessment property pages are a starting point rather than an answer.
- Letting agent fees, insurance, ground rent, service charges and repairs are deductible.
- Improvements are capitalised and depreciated, not deducted.
- The UK £1,000 property allowance has no US equivalent.
- Travel to inspect the property is deductible within the usual US limits.
- Rent received gross of agent commission is still income; the commission is the deduction.
Depreciation is not optional
Property used predominantly outside the United States must be depreciated under the Alternative Depreciation System. For residential rental property placed in service after 2017 that means a 30-year recovery period — 40 years for property placed in service before 2018 — against 27.5 years for an equivalent US property. The rules are set out in IRS Publication 946 and Publication 527.
Only the building is depreciated; land is not. Split the purchase price between the two on a reasonable basis and keep the working, because the split drives every later year and the gain on sale.
Depreciation is not a choice. Gain on sale is computed after subtracting depreciation "allowed or allowable", so skipping it now does not protect you later — it simply loses the deduction while keeping the recapture.
The mortgage interest mismatch
Since April 2020 an individual UK landlord cannot deduct finance costs from rental profit. Relief comes instead as a reduction in the income tax liability, at the basic rate of 20%, as HMRC explains in its guidance on tax relief for residential landlords.
The US makes no such restriction: interest on the rental is an ordinary Schedule E expense. A higher-rate UK landlord therefore reports a larger profit to HMRC than to the IRS, pays UK tax on it, and finds the resulting foreign tax credit exceeds the US tax on the smaller US profit.
Excess credit is not wasted — passive-category credits carry forward ten years — but it only helps if you later have passive income to absorb it. The categories are explained in Form 1116 explained.
Two profits, one property
| Item | UK treatment | US treatment |
|---|---|---|
| Mortgage interest | 20% tax reduction, not a deduction | Fully deductible on Schedule E |
| Depreciation | No relief on the building | Required, 30 years under ADS |
| Tax year | 6 April to 5 April | Calendar year |
| Losses | Carried forward against future property profits | Passive loss rules, generally suspended |
| Furniture and white goods | Replacement of domestic items relief | Depreciated, or expensed under the de minimis rules |
| Currency | Pounds | Dollars, translated as received and paid |
The general US framework for foreign rentals is covered in reporting foreign rental income; the points above are what makes the UK version distinctive.
Losses usually wait
Rental losses are passive. Unless you qualify as a real estate professional, or fall within the allowance for actively managed rentals at lower income levels, a US loss is suspended and carried forward to be used against future passive income or released on sale.
So the mismatch rarely produces a refund. It produces two sets of carryforwards — suspended losses on one side, excess foreign tax credits on the other — that need tracking year to year.
Both carryforwards have expiry risk. Passive-category foreign tax credits lapse after ten years, and suspended losses are only released in full when you dispose of the property in a fully taxable transaction. A landlord who holds a UK flat for twenty years and then sells can find that the earliest credits expired long before the gain arrived to use them.
When you sell
The UK charges capital gains tax, with a return and payment due within 60 days of completion for residential property, covered in non-resident capital gains tax. The US taxes the gain in dollars, with depreciation recapture taxed at up to 25% before the remaining gain is taxed at capital gains rates.
Exchange rates apply again to the purchase and sale, and a sterling mortgage repaid on completion can produce a separate currency gain — the mechanics are in selling a UK home as a US citizen.
Do not forget the accounts
A UK account that collects rent counts towards the FBAR threshold of $10,000 aggregate at any time in the year, and a letting agent's client account can count where you have a financial interest in it. The reporting sits under the foreign tax credit and double taxation work rather than separately from it.
Tranzesta prepares the Schedule E and the UK property pages from one ledger, with the depreciation schedule and credit carryovers tracked across years. Book a consultation if you let a property in Britain.
Frequently Asked Questions
How do I report UK rental income on a US tax return?
On Schedule E of Form 1040, in US dollars, with rent reported when received and expenses deducted under US rules. The figures are built from your records rather than copied from the UK property pages, because the two systems differ on interest, depreciation, allowances and tax year.
How long do I depreciate a UK rental property?
Thirty years for residential rental property placed in service after 2017, because property used predominantly outside the United States must use the Alternative Depreciation System. Property placed in service before 2018 uses 40 years. Only the building is depreciated — the land is not.
Can I deduct UK mortgage interest on my US return?
Yes. The US has no equivalent of the UK restriction, so interest on a rental mortgage is an ordinary Schedule E deduction. In the UK, individual landlords instead receive a basic rate reduction of 20% of finance costs, which is why UK and US profit figures for the same property differ.
Why is my foreign tax credit bigger than my US tax on the rental?
Because UK taxable profit is usually higher: UK rules disallow the interest deduction and give no relief for depreciation, while US rules allow both. The excess credit is not lost — passive-category credits carry forward for ten years — but it can only be used against future passive income.
Do I pay US tax when I sell a UK rental property?
Generally yes, on the gain computed in dollars. Depreciation is recaptured first, taxed at up to 25%, with the balance taxed at capital gains rates. UK capital gains tax paid on the same sale is usually creditable, and a UK return is due within 60 days of completion.
How is a Dubai rental property treated?
The US rules are the same: Schedule E, dollar reporting and 30-year ADS depreciation. The difference is that the UAE imposes no personal income tax on rental income, so there is no foreign tax credit, and the US tax on the profit is the whole bill rather than a top-up.
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