UK expats face a stack of compounding frictions when buying UK property that standard affordability calculators miss: the +2% non-UK resident SDLT surcharge (stacks on the +5% additional-property surcharge for BTL), the 25% FX haircut UK lenders apply to foreign-currency income, lower max LTVs (65% for mainstream lenders, 75% specialist, 80% private bank), a 0.5-1pp rate premium, and country-of-residence restrictions for US/Canada/Australia residents (FATCA reporting). This calculator stacks all five at once.
UK Expat Mortgage Calculator
The thing UK expat lenders won't tell you in one number. Models the FX haircut on foreign income, the lender-tier max LTV, the expat rate uplift, FATCA-tier country friction, non-resident SDLT, and BTL ICR re-test — together.
My scenarios (0/10)
Save snapshots of your inputs to switch between scenarios (e.g. “65% LTV, higher-rate” vs “75% LTV, basic-rate”). Stored in your browser only — no login needed.
Expat headlines
Max loan
£315,000
Effective rate
6.25%
Base + tier uplift + country premium
Monthly payment
£1,641
Upfront cash
£140,000
Includes SDLT £32,000 + ~£3k fees
BTL ICR (target 145%)
0.95×
Fails — reduce loan or raise rent
What's binding your loan?
The smaller of income-multiple and LTV-cap wins.
Income & SDLT detail
Effective GBP income (post-haircut)
£70,200
Max LTV (tier)
75%
SDLT (non-resident applied)
£32,000
The income haircut, visualised
What FX conversion + the lender's 25%-ish haircut do to your borrowing power.
Warnings
- ICR fails at 145% / stress rate — reduce loan, increase rent, or move to a higher LTV tier.
Expat mortgage availability, rates, and LTVs vary widely by lender. This calculator gives a realistic shortlist-and-budget view, not a guaranteed offer — always confirm with an expat-specialist broker. Calculator does not currently model AUM-driven private-bank pricing.
Use these together
Calculators that pair naturally with this one.
Related guides
Plain-English explainers for the rules behind this calculator.
Frequently asked questions
Answers to the questions UK property investors most often have about this tool and the underlying rules.
- Can a UK expat get a mortgage on a UK property?
- Yes — specialist lenders (Skipton International, Hampshire Trust, Marsden, Kent Reliance) cater to UK expats. Mainstream high-street lenders are more restrictive, often requiring you to have a UK foothold (existing account, recent address). Country of residence matters: EEA and Hong Kong are well-served; US, Canada and Australia residents face FATCA-related restrictions and fewer options.
- What is the +2% non-UK resident SDLT surcharge?
- A 2-percentage-point surcharge on top of standard SDLT introduced in April 2021 for buyers who haven't been resident in the UK for 183+ days in the 12 months before purchase. It applies to England & NI SDLT (Scotland LBTT and Wales LTT have no equivalent yet). For a BTL purchase it stacks on top of the +5% additional-property surcharge — so a non-UK resident buying a £400,000 BTL pays £38,000 of SDLT (£10k standard + £20k additional + £8k non-resident).
- Why is foreign income haircut by 25%?
- UK lenders absorb FX risk by discounting foreign-currency income. The standard haircut is 25% — your £100,000 USD salary at a 0.78 GBP rate (£78,000) becomes £58,500 for affordability purposes. Some lenders use 20%, a few 30%. Income paid in GBP (e.g. UK pension while resident abroad) is not haircut.
- Can a US resident get a UK mortgage?
- Yes but the choice of lender is narrow because of FATCA reporting requirements. Skipton International, Kent Reliance and a handful of private banks are the typical routes. Expect 0.5-1pp rate premium over a comparable EEA-resident loan and tighter affordability criteria. Australian and Canadian residents face similar restrictions.