UK Mortgages for British Expats in the USA

Who this page is for

If you are a British national living in the USA and you want a mortgage on UK property, this page is for you.

That includes buying a UK home while you are still based in the States, building a UK buy-to-let portfolio remotely, remortgaging an existing UK property as your fix ends, or planning a return to the UK in the next year or two.

It also covers joint applications where one of you is in the US and the other is in the UK, and the situation many British expats face where their US partner is a US citizen, which has tax and lender implications.

The currency picture

You earn in US dollars. UK lenders convert dollar income to sterling to assess affordability. Most apply a haircut of around 20 percent, which means a 200,000 USD salary is treated as roughly 160,000 USD before the rate kicks in.

A smaller group of specialist lenders, accessed through brokers with the right relationships, do not apply a haircut at all. The single largest variable on what you can borrow from the US is which lender sees the income.

The dollar moves against sterling, sometimes significantly. This is the lender's concern more than yours, and it is the reason haircuts exist.

Try the expat mortgage calculator to see what each scenario means for your income.

Common situations

British expats applying from the US usually fall into one of these:

• Finance professionals in NYC, Boston, or Chicago earning W-2 income with a base salary, bonus, and often deferred stock or RSUs. Bonus and equity treatment varies sharply between lenders.
• Tech employees in San Francisco, Seattle, Austin, or NYC with significant equity components. RSUs that have vested are treated differently to RSUs still on a vesting schedule.
• Healthcare and academic professionals with structured pay and often public-sector pension entitlements. Generally well received.
• Self-employed and 1099 contractors. Two years of US tax returns are usually required, and the figure used is net of business expenses.
• British expats married to US citizens where the US spouse's income forms part of the application. FATCA reporting and tax filings affect documentation but not eligibility.

What lenders want to see

The standard documentation pack from a US-based applicant:

• Three months of US bank statements showing salary credits.
• Three months of pay stubs.
• Most recent W-2 form, or two years of 1099 returns if self-employed.
• The most recent two years of US federal tax returns, including all schedules.
• Employment contract or offer letter.
• Evidence of US visa status if you are not a US citizen (green card or relevant work visa).
• Proof of UK address history and any UK property already owned.

US tax returns are more detailed than UK ones. Lenders use them to confirm both income and any deductions or business expenses that affect the net figure.

How lenders view US-based applicants

Most expat lenders are comfortable with US income, but they treat it more cautiously than UAE or Singapore income for two reasons. First, US tax returns can show large deductions that reduce the income figure used for affordability. Second, FATCA reporting means US persons (citizens and green card holders) carry tax disclosure obligations that some smaller lenders prefer to avoid.

The right lender for a US-based applicant is usually one with experience of FATCA documentation and US W-2 or tax return analysis. The wrong lender will either decline or apply such a heavy haircut that the loan size becomes uneconomic.

Bonus and equity income require careful packaging. RSUs are sometimes treated as income, sometimes as a one-off, sometimes ignored entirely. The same applicant can borrow very different amounts depending on which lender sees the case.

Common pitfalls

A few things trip up US-based applications more than they should:

• Self-employment income misread. Lenders use the net figure on the tax return, after deductions. People who deduct heavily for tax purposes often look poorer on paper than they are in reality.
• Equity and stock comp ignored. Vested RSUs that have been paid out are real income, but only some lenders count them. Worth asking before you assume.
• FATCA-shy lenders. Some lenders quietly avoid US persons. We know which ones.
• AML on deposit funds. Money moved between US accounts, brokerage accounts, and UK accounts needs a clear paper trail.
• Currency timing on remortgages. If you are remortgaging from the US and your existing UK fix ends in three months, start the conversation now. Lender turnaround for US cases is six to ten weeks at best.

Common questions