UK Mortgages for British Expats in the United States
The United States is home to one of the largest British expat communities anywhere in the world, spread across finance in New York, technology in San Francisco and Seattle, consulting, and professional services in cities nationwide. Living and working in the US and thinking about buying or remortgaging a property back in the UK? A number of UK lenders may consider your application, though they weigh it up differently to how they'd assess a UK resident — and a US posting brings a couple of extra considerations, like FATCA reporting, that are worth understanding early. This page walks through how USD income is treated, what documents you'll typically need, and a worked example of the maths lenders use — it's information to help you plan, not mortgage advice. See how this compares across other postings in our guide to expat mortgages, or try our expat mortgage calculator to see indicative figures based on your own numbers.
47 of the 102 UK lenders we track currently show evidence of accepting British expat applications — 22 checked instantly through our calculator engine, 25 specialist or manual-route lenders.
Information only — not advice. We are not FCA authorised.
Worked example: USD income and the currency haircut
- 1. Salary in USD: USD 110,000 a year.
- 2. Converted to GBP: roughly £86,600 a year, using an illustrative exchange rate — the exact rate a lender uses on the day will differ.
- 3. Currency haircut applied: lenders typically use around 75% of USD income (a 25% reduction), as a buffer against exchange-rate movement: £86,600 × 75% = £64,950 usable income.
- 4. Indicative borrowing: at roughly 4.5× usable income, that's roughly £287,000–£297,000 — a conservative planning figure, not a mortgage offer.
This is a single illustrative example, not a personal quote. Your own figure depends on the lender, your deposit, your outgoings and the exact exchange rate on the day you apply.
Illustrative buy-to-let example: rental cover and the stress test
- 1. Monthly rent: an illustrative £1,800 a month, or £21,600 a year, for a typical UK buy-to-let property.
- 2. Stress-tested rental cover: BTL lenders typically want annual rent to cover the mortgage payment by roughly 145% (a “stress rate”), so the notional maximum annual payment this rent supports is £21,600 ÷ 1.45 = £14,897.
- 3. Assumed pay rate: at an illustrative pay rate of 5.5%, that notional payment supports a loan of roughly £14,897 ÷ 0.055 = £270,846.
- 4. Indicative maximum loan: roughly £265,000–£275,000 — a conservative planning figure, not a mortgage offer.
Illustrative only — this example assumes a UK buy-to-let property letting for £1,800 a month, using a stress rate and pay rate that are typical starting points rather than a specific lender's published figures; a given lender's actual test may be set higher or lower. This maximum covers rental-income cover only — it sits alongside, not instead of, the separate loan-to-value limit that also applies. Our buy-to-let mortgage calculator lets you check indicative figures against your own numbers.
Why the US is a major British expat mortgage market
British professionals in the US work across a wide range of sectors and visa types — finance and banking roles concentrated in New York, technology roles in California, Washington State and Texas, and consulting, academia and other professional services roles spread more widely, typically on H-1B, L-1, E-2 or similar visas. Brokers consistently name the US among the biggest sources of British expat mortgage enquiries — see our wider guide to expat mortgages for how this compares across other postings such as Canada — reflecting both the size of the community and the long-standing financial and legal ties between the two countries, even though a US posting brings some specific considerations UK lenders factor into how they assess an application.
How UK lenders treat a USD salary, and the FATCA consideration
UK lenders don't simply convert your US dollar salary to sterling and use the full figure — they apply a discount, commonly known as a haircut, to allow for exchange-rate movement between your application and any point down the line. USD is the world's most widely-traded currency, so it's generally treated as a major currency and the reduction applied tends to sit at the more favourable end of the range lenders use for foreign income. Separately, it's widely documented that the US taxes based on citizenship rather than residence, and that FATCA (the Foreign Account Tax Compliance Act) requires financial institutions worldwide to report US persons' account details to US tax authorities — as a result, some UK lenders take a more cautious approach, or have a specific process, for applicants who are US citizens or green card holders, regardless of where they currently live. It's worth raising your US-person status with a broker early rather than discovering a lender's stance partway through an application. See our lender-by-lender notes on USD salary income and our broader guide to how foreign-currency income affects UK mortgage affordability for more on the underlying mechanics.
Documents you'll typically need as a US-based applicant
Much of the paperwork matches what a UK-resident applicant would supply, plus several US-specific items: evidence of your visa or right to work, recent pay stubs and an employer verification letter (a standard US HR document confirming role, salary and tenure), your most recent W-2 form, 3–6 months of US bank statements showing your salary being credited, and your UK credit history if you have one. If you're a US citizen or green card holder, be ready to provide FATCA-related self-certification (for example a W-9) if a lender asks for it. Exactly what's required varies lender to lender, so it's worth checking our lender-by-lender expat criteria library before you apply.
Deposit size and loan-to-value expectations
Deposit requirements for expat mortgages tend to run above what a UK resident would face — plenty of expat-focused products max out around 75–85% loan-to-value versus the 90–95% sometimes seen domestically, subject to lender and product. A bigger deposit pulls double duty: a better LTV band, plus a wider pool of lenders, since a number of them apply a lower LTV ceiling specifically to overseas-income applications, and some scrutinise US-person applicants even more closely on top of that. A 25% deposit is a sensible planning figure to work toward. Our guide to deposit size and mortgage borrowing has more on how deposit size shapes what you can borrow generally.
Time zones and the practicalities of buying from the US
The US spans several time zones, so the practical gap with the UK depends heavily on where you live — the East Coast is typically around 5 hours behind the UK, the West Coast around 8 hours behind, with the exact gap shifting for a few weeks each spring and autumn since the US and UK change their clocks on different dates. That usually still leaves a workable overlap for calls with a UK solicitor, broker or lender, particularly earlier in the UK day, but it's worth flagging your specific location and time zone to your solicitor so conveyancing calls and document signings can be scheduled with the gap in mind. Try our expat mortgage calculator to see how the numbers stack up for your own circumstances.
Buying to move back into vs buying to let while you're in the US
Talk to a broker about US-based applicants and two distinct client types come up: one is putting money aside for a UK property to eventually move into, or wants family settled there sooner; the other is only interested in a UK property as a rental while their career keeps them in the US. A lender treats these very differently — residential borrowing centres on the property becoming your, or an immediate family member's, main home inside an agreed window, while buy-to-let borrowing is priced mainly off the rent the property's expected to bring in rather than your salary. See the worked BTL example on this page, run your own figures through our buy-to-let mortgage calculator, and check our buy-to-let affordability guide for how that rental figure is worked out. Sorting out which of the two applies early on narrows down the realistic list of lenders considerably.
How the process typically works from the US
- 1
Decision in principle from abroad
Most lenders can issue a decision in principle remotely by phone, video call or online form. The US spans several time zones, so the practical overlap with the UK depends on where you are — the East Coast is generally easiest to schedule around, the West Coast needs a bit more planning.
- 2
ID and verification checks
Your visa or right-to-work evidence and standard UK identity checks are verified alongside the income documents described above, and — for US citizens or green card holders — any FATCA-related paperwork a lender asks for; see our guide to UK mortgage application documents for the general list.
- 3
GBP deposit transfer
Your deposit typically needs to arrive in a UK account, often the solicitor's client account, in sterling ahead of completion. International transfers from a US bank can take several working days to clear, so it's worth allowing extra time and checking your bank's limits and reporting requirements on large outbound payments.
- 4
Valuation
A UK-based surveyor values the property in person; this doesn't require you to travel, though having someone local who can arrange access helps if the property is tenanted or vacant.
- 5
Legal work and power of attorney
Your solicitor manages conveyancing remotely, but signing mortgage deeds from overseas can sometimes need local notarisation — a US notary public can often handle this, sometimes with an apostille attached — or a power of attorney so someone in the UK signs on your behalf. It's worth confirming what your solicitor needs early, since US notarisation and an apostille can take longer to arrange than a UK-based signing.
- 6
Completion
Once funds have arrived and legal work is finished, the mortgage completes and funds are released — from this point, timing depends mainly on the conveyancing chain rather than your US location.
See which of these lenders' criteria could fit your situation
Our expat mortgage calculator covers 47 expat-friendly lenders — 22 checked instantly, 25 accessible through an adviser — no credit search, results in minutes.
Try the Expat Mortgage CalculatorFrequently asked questions
Can I get a UK mortgage while living in the US?
Generally, yes. UK lenders assessing US-based applications include mainstream banks, building societies and specialist expat lenders, reflecting how large a source of enquiries the country represents. Which one fits your case depends on your income, deposit, the property, whether you're buying to live in or to let out, and — for some lenders — whether you're a US citizen or green card holder.
Does being a US citizen or green card holder make it harder to get a UK mortgage?
It can add an extra layer of process rather than ruling it out. Because FATCA requires financial institutions to report US persons' account details to US tax authorities, some UK lenders take a more cautious approach, apply extra checks, or ask for additional paperwork (such as a W-9) for applicants who are US citizens or green card holders — this is a widely-documented industry consideration, not a blanket restriction, but it's worth raising with a broker early.
Do UK lenders accept a USD salary for mortgage affordability?
Yes, although the full figure on your payslip isn't what counts — lenders discount income paid in a foreign currency like USD to guard against exchange-rate movement, and the worked example on this page shows that calculation step by step. Since USD is the most heavily-traded currency in the world, the discount applied is usually towards the milder end of what lenders use for overseas income.
What deposit do I need for a UK mortgage as a US-based expat?
That depends on the lender and the product, but 75–85% loan-to-value is a common ceiling for expat-focused ranges, pointing to a deposit of around 15–25% as a realistic starting figure. A larger deposit can widen your options further, since some lenders apply a lower LTV ceiling specifically for overseas-income applicants.
What documents does my US employer need to provide for a UK mortgage application?
Most lenders want an employer verification letter confirming your role, salary and length of service, alongside recent pay stubs, your most recent W-2, and bank statements showing the salary being paid in. This is broadly the standard combination US employers are used to providing, though exactly what's required varies lender to lender, so it's worth confirming the full document list before you apply.
Will I owe UK or US tax when I buy or sell a UK property while living in America?
Potentially both, depending on your circumstances — US citizens and green card holders are generally taxed by the US on worldwide income and gains regardless of where they live, and UK tax can also apply to rental income or a future sale. The interaction between UK and US tax rules is genuinely complex and specific to your situation. This page is for mortgage planning only, not tax advice, so it's worth speaking to a qualified cross-border tax adviser before you commit to a purchase.
How do I transfer my deposit from the US to the UK, and does currency risk matter?
Deposit funds typically move via an international transfer provider or a currency broker rather than a standard bank transfer, given how much rates and fees can differ between them — comparing options before sending a large sum is worthwhile. GBP/USD can shift meaningfully over the weeks or months a purchase takes, so what your deposit is worth in sterling can change between setting your budget and actually transferring the money — it's worth padding that figure rather than cutting it fine.
As a US-based non-resident, do I pay the SDLT surcharge on a UK property purchase?
Typically yes. Buyers who don't meet the UK residence test for Stamp Duty Land Tax at completion pay an additional 2% on top of the standard SDLT bands, which can combine with other surcharges such as the rate for additional properties. This residence test is based on days spent in the UK around the transaction, separate from your immigration or tax status in the US. The surcharge isn't included in the indicative figures on our calculators, so it's worth budgeting for as an extra cost. This is general information, not tax advice — confirm your own position with a solicitor or tax adviser, ideally one used to cross-border US/UK cases.
What are the UK reporting rules for rental income if I'm letting a property while living in the US?
As an overseas landlord, HMRC's Non-Resident Landlord Scheme would generally apply. Under the standard route, your letting agent or tenant deducts basic-rate tax from the rent before paying you, unless you've separately applied to HMRC for approval to receive the rent without deduction, in which case tax is instead settled through your own UK return. US citizens and green card holders also have US reporting obligations on worldwide income, including UK rental income, so this often needs coordinating across both systems. This is general information, not tax advice — a cross-border accountant can advise on both sides.
Is there a deadline to report Capital Gains Tax to HMRC if I sell a UK property from the US?
Yes — non-UK residents disposing of UK residential property must generally report the sale to HMRC and pay any Capital Gains Tax due within 60 days of completion, whether or not any tax turns out to be owed. This runs alongside, not instead of, any US tax reporting obligations you may have as a citizen or green card holder on the same disposal. This is general information only; a tax adviser experienced in both UK and US rules can talk through reliefs, costs and the numbers for your specific sale.
Does it matter which US state I'm based in for a UK mortgage application?
Not directly — UK lenders assess US-based applicants primarily on income, deposit, credit history, the property and (where relevant) US-person tax status, rather than on state of residence itself. Where state does matter in practice is more about timing and logistics, since your time zone and any state-specific notarisation or document-witnessing requirements can affect how quickly paperwork gets signed and returned during the process.
Information only — not mortgage advice. We are not FCA authorised. Being shown a lender does not mean you will be accepted, and figures shown are conservative estimates, not offers. Always speak to a qualified, FCA-authorised mortgage adviser before applying.
