Mortgage & Stamp Duty Calculator
Enter a price, deposit, rate and term to see the monthly repayment, stamp duty, and cash you'd need to complete. No login needed.
House price£340,000
Deposit10% · £34,000
Interest rate4.8%
Mortgage term30 years
Deposit£34,000
Monthly payment£1,605
Total interest£271,971
Cash needed£41,000
Stamp duty (SDLT)
£7,000Up to £125,000 · 0%£0
£125,001–£250,000 · 2%£2,500
£250,001–£925,000 · 5%£4,500
Affordability
Example households, not your numbersIn the app, this mortgage gets checked against your real House Budget so you know what's actually left each month. These examples shuffle as you adjust the calculator, on purpose, since they're not calculated from what you've entered:
Alex disposable income£1,270
Sam disposable income£895
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