Mortgage Overpayment Calculator

See how much interest you save and how many years you shave off your mortgage by overpaying — monthly or as one-off lump sums.

Your mortgage

£
%
years

Your overpayment

£
Most lenders allow up to 10% of balance overpaid per year penalty-free.
£

Your savings

Total interest saved
£0
0 years 0 months earlier

Without overpaying

Monthly£0
Total paid£0
Total interest£0
Term0y

With overpaying

Monthly£0
Total paid£0
Total interest£0
New term0y
Get a free remortgage quoteSome deals beat the saving from overpaying — check both

Estimates only. Most UK lenders allow overpayments up to 10% of the balance per year penalty-free during a fixed deal — check your specific mortgage terms before overpaying. For the wider trade-offs see our overpaying your mortgage guide.

Try our other free calculators

Built for UK first-time buyers and remortgagors. No sign-up, no email, no tracking your inputs.

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