UK Seller's Guide to FIRPTA
UK residents who sell a DVC contract face the same 15% FIRPTA withholding as any other foreign seller. But you also have specific obligations to HMRC and benefits from the US-UK tax treaty that affect your total tax outcome. This guide covers what UK sellers need to do from closing through both US and UK tax filings.
The 15% FIRPTA Withholding
At closing, the buyer's closing agent withholds 15% of your gross sale price and remits it to the IRS via Form 8288. You receive Form 8288-A confirming the amount withheld. This is a deposit against your actual US tax (not the tax itself. For most UK sellers, the actual US tax is considerably less than 15% of the gross sale price, making a refund due.
Do You Need an ITIN?
Yes. To file a US tax return as a UK resident, you need a US Individual Taxpayer Identification Number (ITIN). Apply using Form W-7. A valid UK passport is sufficient for identity verification) you can either mail the original to the IRS (returned within 7–11 weeks) or have a Certified Acceptance Agent verify it in person so your passport never leaves your hands. Several CAAs operate in the UK, primarily in London.
The US-UK Tax Treaty
Article 13 of the US-UK Convention for the Avoidance of Double Taxation confirms that the United States has the right to tax gains from the sale of US real property interests, including DVC contracts. The treaty does not exempt UK sellers from US tax. What it provides is a mechanism to avoid paying tax on the same gain twice (once in the US and once in the UK.
Reporting to HMRC: UK Capital Gains Tax
UK residents must report the disposal of overseas assets on their Self Assessment return (SA108), even if no UK CGT is ultimately owed.
Convert USD to GBP using the spot exchange rate on each transaction date) the date you originally purchased the DVC contract and the closing date of the sale. Use HMRC published rates or rates from a major bank. Do not use an average annual rate.
CGT Annual Exempt Amount (For 2024/25 this is £3,000. If your converted GBP gain falls within the allowance, no UK CGT is owed.
UK CGT rates on residential property) DVC contracts are classified as US real property interests. UK CGT rates on residential property are 18% (basic rate taxpayers) or 24% (higher/additional rate taxpayers) for disposals on or after 30 October 2024.
Double Taxation Relief
If UK CGT is owed, you claim Double Taxation Relief (DTR) for the US tax you paid. The credit is the lower of the UK CGT owed and the US tax paid. Because the US withholds 15% of the gross sale price and your actual US tax on the gain is typically 15% of the gain, the US tax credit almost always equals or exceeds your UK CGT liability. Leaving little or nothing additional to pay HMRC.
Worked example:
| US (IRS) | UK (HMRC) | |
|---|---|---|
| Sale price | $24,000 (≈£19,000) | £19,000 |
| Purchase price | $17,000 (≈£13,500) | £13,500 |
| Gain | $7,000 | £5,500 |
| Tax rate | 15% long-term capital gains | 24% higher rate |
| Tax owed | $1,050 | £1,320 |
| FIRPTA withheld | $3,600 (15% of $24,000) | : |
| US refund due | $2,550 | : |
| DTR credit (US tax paid) | : | ~£840 |
| UK CGT after DTR | : | £480 |
UK CGT 60-Day Reporting
Since April 2020, UK residents must report and pay CGT on UK residential property within 60 days of completion. DVC contracts (as US real property) fall outside this UK-residential-property rule, but if HMRC's guidance changes or your adviser treats the DVC interest as within scope, report within 60 days to avoid automatic penalties. Your annual Self Assessment is filed in addition to any 60-day report, not instead of it.
When to File Your US Return
Form 1040-NR (non-resident alien return) is due by June 15 of the year following the sale. An automatic one-month extension beyond the April 15 standard date for non-resident filers without US wages. You can extend further to October 15 using Form 4868. The FIRPTA refund is issued 4–8 months after the IRS processes your return.
Common Mistakes UK Sellers Make
- Not filing a US return at all. The IRS will not automatically refund excess FIRPTA withholding. You must file Form 1040-NR to claim it. Many UK sellers assume the 15% withheld is the final bill and never recover the difference. Often £2,000–£4,000.
- Converting at the wrong exchange rate. Using an average annual rate rather than the transaction-date spot rate mis-states your UK gain and potentially your DTR credit.
- Forgetting to claim Double Taxation Relief. DTR is not applied automatically. You claim it on SA108 and provide details of the US tax paid.
- Using the same ITIN for future US filings. Your ITIN is permanent. Once issued, use it on all future US tax filings involving your ITIN number (do not apply for a new one.
Frequently Asked Questions
Can I avoid US tax via the treaty?
No. Article 13 explicitly allows the US to tax gains on US real property interests. The treaty prevents you paying tax twice on the same gain, but it does not exempt the gain from US tax entirely.
Do I need both a US tax preparer and a UK accountant?
For a straightforward DVC sale, a US international tax firm handles the 1040-NR. Your UK accountant handles Self Assessment. Make sure your UK adviser knows about the US tax paid so they can claim DTR correctly.
Which exchange rate does HMRC accept?
HMRC published exchange rates (available on gov.uk) or rates from a recognised financial institution on the actual transaction dates.
For more on the treaty provisions and UK tax interaction, see our UK DVC FIRPTA treaty guide.