UK rental income on a US return: depreciation, credits and the traps between

Figures relate to tax year 2025 (US) · 2025-26 (UK)

UK rental income belongs on both tax returns if you are American. HMRC taxes it because the property sits here. The IRS taxes it because you are a US citizen. Foreign tax credits usually stop you paying twice, but the two calculations rarely produce the same profit figure.

That gap is where the work lives. Each country allows different expenses, and America compels a deduction Britain does not recognize at all. So this guide covers both calculations, the credits that join them, and the sale years later that quietly settles the score.

Key takeaways

• Both countries tax the same letting, with credits preventing genuine double taxation.
• Depreciation is mandatory on the US side, whether or not you claim it.
• UK finance costs get a basic-rate credit; America deducts mortgage interest in full.
• The non-resident landlord scheme decides whether rent arrives gross or taxed.
• Depreciation recapture on a later sale is the cost most landlords never see coming.

How is UK rental income taxed at home?

HMRC taxes the profit. Take the rent received, subtract allowable expenses, and pay at your marginal rate. Repairs, agent fees, insurance and safety certificates all deduct normally. Mortgage interest does not, because finance costs now attract a basic-rate tax credit instead.

Living abroad adds a wrinkle. According to GOV.UK's guidance on rent from UK property (opens in a new tab), agents or tenants must deduct basic-rate tax before paying you, unless HMRC approves you to receive rent gross. Most landlords apply for that approval immediately, because cash flow suffers otherwise.

How does America tax the same rental income?

It taxes the profit too, computed under US rules on a calendar year. Most operating expenses deduct as you would expect. Mortgage interest deducts in full against the property, which is more generous than the current British treatment.

Per the IRS guidance on rental income and expenses (opens in a new tab), you report the gross rents and deduct qualifying costs. The big difference from HMRC is depreciation, which recovers the building's cost over decades and reduces taxable profit every year.

Why does depreciation matter so much?

Because it is not optional. America makes you depreciate the building over 30 years for a foreign home. The deduction cuts your taxable rental income each year. It does so whether or not you claim it.

That last clause does the damage. Skip depreciation and you still lose the basis, because the eventual sale calculation assumes you took it. So a landlord who never claimed the deduction pays tax on the benefit anyway, without ever receiving it.

Depreciation is the deduction you take whether you take it or not. The only choice is whether you get the benefit.

How do the credits actually work?

UK tax paid on the letting becomes a foreign tax credit. It offsets the American liability on the same rental income. British rates usually beat American ones on property profit, so the credit often covers the US bill in full.

Two things complicate it. The profits differ, since depreciation lowers the American figure, so the credit may exceed what you need.

The basket rules add the second complication. Rental income sits in the general basket, where surplus credits carry forward but cannot help passive income. Our guide to Form 1116 and the foreign tax credit covers that mechanic in full.

How do you report it correctly?

Run the two calculations separately from one set of records. Reusing the British profit figure on the American return is the error we correct most often, and it usually overstates the tax. Work through this sequence each year:

1. Keep one record of gross rents and every expense, dated and receipted.
2. Split the property between land and building, because only the building depreciates.
3. Compute the UK profit on the 6 April year, applying the finance cost credit.
4. Compute the US profit on the calendar year, including mandatory depreciation.
5. Convert both to the right currency, using consistent rates across the year.
6. Claim the foreign tax credit for UK tax paid on that same rental income.
7. Track accumulated depreciation permanently, because the sale calculation needs it.

Which expenses can you actually claim?

Most running costs qualify in both systems, though the lists differ at the edges. Start with the obvious ones and keep every receipt, because rental income cases are won on documents rather than argument.

• Letting agent fees and tenant-finding commission
• Repairs and maintenance, but not improvements that add value
• Buildings and contents insurance for the let property
• Ground rent, service charges and council tax when you pay them
• Safety certificates, licensing fees and professional cleaning
• Accountancy fees for preparing the property pages

Improvements sit apart from repairs in both countries. A new kitchen replacing an old one usually repairs; an extension improves. Improvements add to your cost base instead, reducing the eventual gain rather than this year's profit.

What if the property was once your home?

Then the sale gets more interesting. Britain gives relief for periods you actually lived there, which can shelter much of the gain. America offers its own exclusion, though the qualifying tests are stricter and the amounts smaller.

Renting out a former home therefore starts a clock. The longer it stays let, the smaller the relief becomes on each side. So anyone letting a former residence should model the sale before the reliefs erode further.

A worked example

Take an illustrative example. An American in Bristol lets a flat for £18,000 a year. Expenses run £4,000, and mortgage interest costs £6,000. HMRC taxes £14,000 of profit, then gives a basic-rate credit worth roughly £1,200 on the interest.

The American calculation deducts the interest in full and adds around £5,000 of depreciation. That leaves roughly £3,000 of taxable profit. Her UK tax comfortably exceeds the US charge, so credits absorb it, and the surplus carries forward in the general basket.

What happens when you sell?

The reckoning arrives. America recaptures the depreciation you claimed, or should have claimed. It taxes that amount at a special rate first, before ordinary capital gains apply. Britain computes its own gain with no depreciation in sight.

The mismatch can leave real US tax due even when the UK charge is modest. Currency movement adds another layer, because the gain is measured in dollars. Our guide to selling your UK home as a US citizen covers the residence relief question that sits alongside it.

How do currency movements affect the numbers?

Every American figure is a dollar figure, so the exchange rate shapes your profit as much as the tenant does. Rent collected in sterling converts at the rates during the year, and most landlords use a yearly average for simplicity.

The mortgage adds a sharper edge. Paying off a sterling loan after the pound weakens can create a taxable currency gain in American eyes, quite separately from the property itself. Keep the loan history, because that calculation reaches back to the original drawdown.

None of this affects the British return, which simply works in pounds throughout. It is purely an American layer, and it catches landlords who assumed the two calculations differed only on depreciation.

What about the non-resident landlord scheme?

It governs how rent reaches you while you live abroad. Without approval, your agent or tenant must deduct basic-rate tax from every payment, and that money goes straight to HMRC.

With approval, the rent arrives gross instead. You then settle the tax through Self Assessment each year, which suits most landlords far better for cash flow.

Approval is straightforward for compliant landlords, and applying early avoids months of unnecessary withholding. According to GOV.UK's guidance on renting out a property (opens in a new tab), you still declare the rental income annually regardless of which route applies.

The mistakes and penalties that follow a UK let

Rental cases go wrong in predictable ways, and most errors compound quietly across years. These are the ones we unwind most often:

• Copying the UK profit onto the American return, ignoring depreciation entirely.
• Never claiming depreciation, then facing recapture on a benefit never received.
• Deducting mortgage interest in full on the British return, where only a credit applies.
• Missing the non-resident landlord approval, so rent arrives taxed for years unnecessarily.
• Forgetting the letting exists on the American return because no US bank account received rent.
• Losing the purchase paperwork, which the sale calculation needs decades later.

The reporting layer matters too. A UK property held personally is not itself a reportable foreign asset, but the accounts that hold the rent usually are. Our guide to the international forms you may owe maps which apply.

Should you hold the property through a company?

Many British landlords incorporate to escape the finance cost restriction. For an American, that decision changes character entirely. A UK limited company brings its own American reporting and anti-deferral rules with it.

So the British arithmetic alone can mislead badly. What saves tax in one system frequently creates paperwork and exposure in the other. Model both sides before restructuring, and treat any adviser who ignores the American half with real caution.

How US UK Tax Accountants helps

We prepare both calculations from one set of records, so the depreciation schedule, the credits and the UK profit all reconcile. Our property and capital gains service covers lettings and the eventual sale together, because the two are the same story.

In our practice we see depreciation handled wrongly more than any other rental issue. One senior specialist owns the file, on a fixed fee agreed in writing, and the depreciation schedule travels with you year after year.

Get the letting reported properly

If your UK rental income has only ever been calculated for HMRC, the American side needs building from scratch. Tell us about the property and how long you have let it. We will rebuild the position and quote a fixed fee in writing. Book a consultation and hear back within one working day.

Last reviewed 9 September 2026 by the US UK Tax Accountants Tax Team. This article is general information, not personal tax advice — speak to a qualified US/UK tax adviser about your own position.

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