Answers · UK 2025/26
How big a mortgage can I get on a £350,000 salary?
Typically around £1,575,000, based on the common 4.5x income cap (4.5 x £350,000). Some lenders stretch to 5x (£1,750,000) or more for higher earners with strong credit, but affordability checks and lender loan-size limits often apply at this level.
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Most UK mortgage lenders cap borrowing at roughly 4 to 4.5 times gross annual income, so on a £350,000 salary you can usually borrow about £1,400,000 to £1,575,000. Some lenders offer 5x or 5.5x for borrowers with a clean credit history and manageable existing commitments, potentially reaching £1,750,000 to £1,925,000, though at this size some mainstream lenders route applications to specialist high-net-worth or private banking teams with bespoke underwriting rather than standard income multiples. Worked example: borrowing £1,575,000 over 25 years at 5.0% costs about £9,207.29 a month. On a £350,000 salary your take-home pay for 2026/27 is roughly £16,440.53 a month after Income Tax (£143,703 a year) and National Insurance (£9,010.60 a year) -- note the Personal Allowance is fully withdrawn above £125,140, so a large share of this income is taxed at 40% or 45% -- meaning that payment is around 56.00% of net income, at or above the level many lenders consider comfortable. A bigger deposit, a longer term, or accepting a smaller loan can bring the payment down to a more manageable share of take-home pay. Use the mortgage affordability calculator to factor in your deposit and outgoings.
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This answer is informational only and does not constitute financial, tax or legal advice. Figures are for the 2025/26 UK tax year. See our methodology and sources.