Introduction Owning property on both sides of the Atlantic sounds straightforward. Pay your UK mortgage, pay your US mortgage, collect the rent, and pay the local tax. In reality, it is far more intricate than that. Every rental pound from a UK property must be reported to the IRS. Every rental dollar from a US […]
Owning property on both sides of the Atlantic sounds straightforward. Pay your UK mortgage, pay your US mortgage, collect the rent, and pay the local tax. In reality, it is far more intricate than that.
Every rental pound from a UK property must be reported to the IRS. Every rental dollar from a US property must be reported to HMRC. When either property is sold, capital gains rules in both jurisdictions apply simultaneously. And when a US person sells US real estate, FIRPTA withholding can create a cash flow shock that most investors never see coming.
Managing a transatlantic property portfolio effectively requires a genuine tax specialist in the US and the UK who understands every dimension of the problem. The main tax responsibilities on both sides, the riskiest traps, and the characteristics of a well-coordinated advice engagement are all covered in this guide. Contact Jungle Tax at https://www.jungletax.co.uk/ for specialist guidance.
A tax specialist for the US and UK is a practitioner who holds concurrent expertise in both US federal and state tax law and UK tax law.
For a property investor with assets in both countries, this dual expertise covers: UK income tax on rental profits; US federal income tax on the same profits; UK capital gains tax on disposals; US federal capital gains tax on the same disposals; FIRPTA withholding on US property sales by foreign persons; SDLT and US transfer taxes on acquisitions; and the foreign tax credit mechanism that prevents full double taxation.
A UK-only accountant handles the UK side. A US-only CPA handles the US side. But neither knows what the other is doing. Only a genuine tax specialist for the US and the UK manages both sides as a single integrated position.
The IRS guidance on rental income and expenses for US taxpayers is published at:
https://www.irs.gov/publications/p527
Property sits at the intersection of income tax, capital gains tax, inheritance tax, and transfer tax in both jurisdictions.
A decision that optimizes the UK position — such as electing to use the cash basis for rental income — may have unforeseen US consequences. A disposal that qualifies for principal private residence relief in the UK may not qualify for the Section 121 exclusion in the United States. And a US property sold by a UK-resident investor triggers FIRPTA withholding, which can withhold 15 percent of the gross sale price — regardless of the actual gain.
These interactions cannot be managed without a specialist who sees the full picture.
This guide is written for US citizens and permanent residents who are UK residents and who own property in the United States — whether as a primary residence, a rental property, or an investment property.
It is equally relevant to UK nationals who have acquired US property, to non-UK-domiciled individuals with property in both countries, and to any investor who receives rental income from both jurisdictions simultaneously.
The Autumn Budget 2024 reduced the UK capital gains tax rate on residential property for higher-rate taxpayers from 28 percent to 24 percent. While this represents a reduction, it remains well above the rate applicable to other assets.
For a US person selling UK residential property, both UK CGT and US federal capital gains tax apply. The foreign tax credit allows UK CGT paid to offset the US liability. But the rate differential between the two systems means the analysis is not straightforward. A tax specialist for US and UK models models the net position before any disposal is agreed.
The Foreign Investment in Real Property Tax Act — FIRPTA — requires a buyer of US real estate to withhold 15 percent of the gross sale price when the seller is a foreign person.
A UK-resident investor selling a US rental property worth $800,000 faces automatic withholding of $120,000 at completion — regardless of the actual taxable gain. This is a significant cash flow impact that must be planned for in advance.
A withholding certificate application can reduce the withheld amount to the estimated tax on the actual gain. But this application must be filed with the IRS before or at the time of closing. The US real estate tax system is discussed in more detail in our linked guide on US and UK tax consultants for HNW families.
Since April 2015, non-UK residents have been subject to UK CGT on gains from UK residential property. Since April 2019, this has been extended to all UK property and indirect property interests.
HMRC has significantly increased its compliance activity in this area. A US investor who has sold UK property without filing the required non-resident CGT return within 60 days of completion faces automatic penalties. The HMRC guidance on reporting and paying CGT on UK property is published at:
https://www.gov.uk/capital-gains-tax/report-and-pay-capital-gains-tax
On the UK self-assessment return, rental income from a UK property must be reported to HMRC. Permitted deductions include mortgage interest (subject to the finance cost restriction for residential property), letting agent fees, repairs and maintenance, insurance, and certain other costs.
The same rental income must also be reported on the US federal tax return. The US allows deductions for mortgage interest, property taxes, depreciation, repairs, management fees, and insurance. Depreciation is a key difference — US tax rules require it; UK tax rules for residential property do not.
A tax specialist for the US and UK prepares both returns simultaneously. The foreign tax credit allows UK income tax paid on the rental profit to offset the US tax liability on the same income.
When a UK property that has been the owner’s main residence is sold, principal private residence relief may exempt the gain from UK CGT. The relief applies to periods of actual occupation and certain deemed periods of occupation.
In the United States, the Section 121 exclusion allows a US person to exclude up to $250,000 of gain ($500,000 for married couples filing jointly) on the sale of a principal residence. The property must have been the principal residence for at least two of the five years before the sale.
These two reliefs operate independently. A property can qualify for full UK PPR relief but not for the partial or no US Section 121 exclusion — or vice versa. The adviser must model both positions before the sale is agreed.
FIRPTA withholding applies whenever a foreign person sells US real property interests. The standard withholding rate is 15 percent of the gross sale price.
The withheld amount is not a tax — it is a credit against the actual US tax liability on the gain. If the estimated tax on the actual gain is less than the required withholding, the seller may apply for a withholding certificate to reduce the withholding amount.
A withholding certificate application must be filed with the IRS using Form 8288-B. The IRS aims to process these within 90 days. A tax specialist for the US and UK files the application well in advance of the planned sale date.
Managing a transatlantic property portfolio requires a structured annual process. Every element must be coordinated across both jurisdictions.
Step one — Portfolio mapping and basis establishment.
The adviser identifies every property in both jurisdictions. The acquisition cost, purchase date, and any capital improvements are established for each property. The correct tax basis is confirmed in both the UK and US systems — these can differ significantly.
Step two — Annual rental income reporting.
UK rental income is reported on the self-assessment return with the correct allowable deductions. The same income is reported on the US federal return with the applicable US deductions — including depreciation where required. The foreign tax credit is calculated to offset the UK tax against the US liability.
Step three — FBAR and FATCA compliance.
Any rental income held in UK bank accounts by a US person is a foreign financial account for FBAR purposes. The FBAR filing threshold is an aggregate balance of $10,000 at any point during the year. The FinCEN BSA E-Filing system for FBAR submissions is available at:
https://bsaefiling.fincen.treas.gov/main.html
Step four — Pre-disposal planning.
Before any property is sold, the adviser models the combined UK CGT and US capital gains tax position. PPR relief and the Section 121 exclusion are assessed. The foreign tax credit is modeled. The optimal timing of the sale — including the choice of UK and US tax years — is advised.
Step five — FIRPTA withholding certificate application for US property sales.
When a UK-resident investor sells US real estate, a withholding certificate application is prepared and filed with the IRS before or at closing. This reduces the withheld amount from 15 percent of gross proceeds to the estimated tax on the actual gain.
Step six — Non-resident CGT return for UK property sales.
Where a non-UK resident sells UK property, a non-resident CGT return must be filed with HMRC within 60 days of completion. This obligation applies regardless of whether any tax is owed. Missing the 60-day deadline triggers automatic penalties.
Step seven — Annual review and portfolio strategy.
The adviser reviews the portfolio annually. Any changes to UK CGT rates, US capital gains rates, or the foreign tax credit rules are assessed. Disposal and acquisition timing decisions are made with full visibility of the combined tax position.
Michael is a US citizen. He has been a UK resident for sixteen years.
He owns two UK buy-to-let properties in London and a condominium in Miami that he purchased before relocating to the UK. The Miami property has been rented out for the past twelve years.
His UK accountant correctly reported the London rental income on his self-assessment returns. His Miami property income had never been reported anywhere — not to HMRC and not to the IRS.
When Michael approached Jungle Tax ahead of a planned sale of the Miami property, the review identified several issues.
First, the Miami rental income had never been reported on his US federal return. Twelve years of unreported rental income created a potential US tax liability plus interest.
Second, the same Miami income should have been reported to HMRC as foreign rental income. Michael had been on the arising basis throughout — all foreign income was taxable in the UK as it arose.
Third, Michael had never filed an FBAR for the US bank account into which the Miami rent was paid. The balance had exceeded $10,000 in every year.
Fourth, Michael was planning to accept the full FIRPTA withholding of 15 percent of the gross sale price — approximately $67,500 on a $450,000 sale — without applying for a withholding certificate.
Jungle Tax coordinated a full remediation and sale planning exercise.
A Streamlined Foreign Offshore Procedures submission was prepared for the unreported US rental income. The UK returns were amended to include the Miami rental income for the relevant years.
A FIRPTA withholding certificate application was filed with the IRS. The estimated tax on the actual gain was approximately $28,000. The certificate reduced the withheld amount from $67,500 to $28,000 — saving Michael $39,500 in withheld funds at closing.
The combined UK CGT and US capital gains tax on the Miami sale was modeled. The foreign tax credit for UK CGT paid reduced the US liability significantly. Contact our US tax specialist or the team at hello@jungletax.co.uk or 0333-8807974 if your situation is similar.
A UK-resident US person who receives rental income from US property must report it to HMRC. Most investors assume that US rental income is only a US matter. This is wrong.
A UK resident on the arising basis is taxable in the UK on worldwide income. US rental income is foreign income that must appear on the UK self-assessment return. The foreign tax credit for US tax paid can offset the UK liability — but the income must be declared first.
The mirror-image error is equally common. A US person living in the UK who receives UK rental income must report it on the US federal return.
Many investors pay UK income tax on their rental profits and assume nothing further is required. The US filing obligation exists regardless of where the property is located or where the tax has been paid. The HMRC property income guidance is available at:
https://www.gov.uk/guidance/income-tax-when-you-rent-out-a-property-working-out-your-rental-income
Accepting the standard 15 percent FIRPTA withholding without applying for a certificate is one of the most expensive mistakes a UK-resident investor can make when selling US property.
The withholding certificate reduces the withheld amount to the estimated actual tax on the gain. For a property with significant depreciation recapture or a large basis, the savings can be tens of thousands of dollars. The application must be filed before or at the time of closing.
UK principal private residence relief and the US Section 121 exclusion cover different periods and apply different conditions. A property can qualify for full PPR relief in the UK but zero Section 121 exclusion in the US.
This is most commonly an issue where the owner has been non-resident in the property for extended periods. Specialist advice before any disposal is agreed is essential.
A non-UK resident who sells UK property must file a non-resident CGT return within 60 days of completion. This applies regardless of whether any tax is owed.
Many investors are unaware of this obligation. The automatic penalty for missing the deadline is £100 for the first day, rising to £300 after three months and further amounts after six months.
Jungle Tax is a specialist US-UK cross-border tax advisory firm. Our team includes IRS Enrolled Agents and UK-qualified tax practitioners with specific experience in transatlantic property portfolios.
We manage the full compliance picture for property investors in both countries. This includes UK self-assessment rental income reporting, US federal rental income reporting, FBAR filings for property-related accounts, FIRPTA withholding certificate applications, non-resident CGT returns for UK property sales, and the combined capital gains tax modeling for any disposal.
We also advise on portfolio strategy — including the timing of disposals, the use of PPR relief and the Section 121 exclusion, the optimization of foreign tax credits, and the interaction with estate and inheritance tax planning.
You can find further information on our page at https://www.jungletax.co.uk/, or read our related guide to US and UK tax advisors for HNW families with dual-country property.
If you own property in both the UK and the United States, contact our tax specialist for the US and UK team at hello@jungletax.co.uk or call 0333-8807974 today.
A transatlantic property portfolio creates tax obligations in both the UK and the United States on every rental payment and every disposal.
Three points from this guide matter most.
First, rental income from a US property must be reported to HMRC, and rental income from a UK property must be reported to the IRS — regardless of where the tax has already been paid.
Second, FIRPTA withholding of 15 percent of the gross sale price applies automatically when a foreign person sells US real estate — but a withholding certificate can reduce this to the estimated tax on the actual gain.
Third, UK principal private residence relief and the US Section 121 exclusion operate independently. A disposal that is fully exempt in one jurisdiction may be fully taxable in the other.
Managing all of these obligations simultaneously requires a genuine tax specialist for the US and the UK who understands both systems and their interaction.
Speak to a Jungle Tax adviser today — contact us at hello@jungletax.co.uk or visit our website https://www.jungletax.co.uk/ to learn more.
Yes. A US citizen or permanent resident must report worldwide income on their US federal tax return — including rental income from UK property. The income is reported on Schedule E of Form 1040. UK income tax already paid on the rental profit can be claimed as a foreign tax credit on Form 1116 to offset the US tax liability on the same income. The credit is calculated separately for passive category income and must fall within the applicable basket limits. A specialist adviser prepares both the UK and US returns simultaneously to ensure the credit is optimized correctly.
FIRPTA — the Foreign Investment in Real Property Tax Act — requires a buyer of US real estate to withhold 15 percent of the gross sale price when the seller is a foreign person. For a UK-resident investor, this withholding applies automatically at completion. The withheld amount is a credit against the actual US tax liability on the gain, not an additional tax. Where the estimated tax on the actual gain is less than the withheld amount, the seller can apply for a withholding certificate using Form 8288-B to reduce the withholding before closing. This application should be filed as early as possible before the planned sale date.
No. UK PPR relief and the US Section 121 exclusion are entirely separate reliefs operating under different rules. PPR relief applies in the UK based on periods of actual and deemed occupation. The Section 121 exclusion applies in the US only where the property has been the principal residence for at least two of the five years before the sale. A property can qualify for full PPR relief in the UK but not for Section 121 exclusion in the US — most commonly when the owner has been abroad for extended periods. Both positions must be assessed before any disposal is agreed.
A non-UK-resident who sells UK residential or commercial property must file a non-resident CGT return with HMRC within 60 days of the completion date. This obligation applies regardless of whether any UK CGT is owed on the disposal. Missing the 60-day deadline triggers automatic penalties: £100 for the first day late, £300 after three months, and further daily penalties after six months. The return is filed through HMRC’s online service. A specialist adviser files this return as part of the disposal management process.
Yes. US tax rules require that foreign rental property held for investment be depreciated over 40 years using the Alternative Depreciation System. This is a mandatory deduction — not an optional one. Depreciation reduces US taxable rental income each year. However, when the property is sold, the accumulated depreciation is recaptured and taxed at up to 25 percent under the US unrecaptured Section 1250 gain rules. A specialist adviser tracks the depreciation history for each property and calculates the recapture correctly on disposal.
