Calculators
Run the numbers first.
Every calculator here is built for a real decision — not a lead form. Free to use, no sign-up. When you want the strategy behind the figure, that's what Nathan is for.
Live mortgage rate trackerBoE base rate →New · First-time buyersFirst-Time Buyer Passport — a step-by-step guide you return toStart the journey →Mortgages
Mortgage calculatorRepayment, interest-only, and affordability estimates in seconds.Remortgage savingsSee what you could save, net of fees, early repayment charges, and breakeven.Overpayment calculatorHow much interest and how many years you save by overpaying each month.Expat mortgageBorrowing on foreign-currency income for a UK mortgage, with FX conversion.Bridging loanThe total cost for an auction purchase, a chain break or a refurbishment, with retained, rolled-up or serviced interest.