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Overpayment calculator (UK mortgages)

An overpayment calculator shows what happens when you pay more than your contractual monthly mortgage payment. Enter your balance, rate, term and overpayment amount — get the years saved and total interest saved instantly.

Your mortgage

UK calculator
Estimated monthly payment£1,254
Your overpayment result

You'll be mortgage-free 6 years 9 months earlier
and save £46,940 in interest.

New payoff
September 2044
was June 2051
Total interest
£109,338
was £156,277

Balance over time

Without overpaying With overpaying
WithoutWith overpay
Term25 years18 years 3 months
Total interest£156,277£109,338
You save£46,940 · 6y 9m

Want to clear it even faster?

A lower interest rate could save you thousands more on top. See if you could remortgage to a better deal.

Check remortgage rates

We may receive a commission if you remortgage through a partner broker. This never affects the rate you're offered.

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