Mortgage overpayment calculator

Mortgage Calculator

Mortgage overpayment calculator

See how much interest and time you could save by overpaying your mortgage.

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With a £100 monthly overpayment, you could save £23,976.44 interest and pay off your mortgage 3 years and 3 months earlier.

Mortgage Overpayment Calculator

Need to see how much money you could save by overpaying your mortgage? Our free Mortgage Overpayment Calculator helps you estimate interest savings, time saved and your new estimated mortgage term.

Whether you are checking:

  • monthly mortgage overpayment savings
  • how much interest you could save
  • how much faster you could repay your mortgage
  • the impact of paying extra each month

This simple online tool makes mortgage overpayment calculations fast and easy.

How Mortgage Overpayments Work

Mortgage overpayments reduce the balance you owe. This can reduce the amount of interest charged and may help you repay your mortgage earlier.

Basic Idea:

Monthly Payment + Monthly Overpayment = Faster Mortgage Repayment

Mortgage Overpayment Example

If your mortgage balance is £225,000 at 5% interest over 25 years and you overpay by £100 per month:

  • Your monthly payment increases by £100
  • Your mortgage balance reduces faster
  • You may save thousands in interest
  • You may repay the mortgage years earlier

What Is a Mortgage Overpayment?

A mortgage overpayment is an extra payment made on top of your normal monthly mortgage repayment. It can be a regular monthly overpayment or a one-off lump sum payment.

Why Overpay a Mortgage?

Overpaying your mortgage can reduce the total interest you pay and shorten the length of time it takes to clear the mortgage.

Common Mortgage Overpayment Examples

  • £50 extra per month can reduce interest and shorten the term
  • £100 extra per month can create larger long-term savings
  • £250 extra per month may cut years off the mortgage
  • £500 extra per month can make a major difference to total interest paid

Why Use Our Mortgage Overpayment Calculator?

  • Estimate mortgage overpayment savings instantly
  • See how much interest you could save
  • Estimate how much sooner the mortgage could be repaid
  • Useful for budgeting and financial planning
  • No manual spreadsheet needed