Mortgage overpayment calculator

Try our mortgage overpayment calculator to find out if you could you save money by reducing the amount of interest you’re charged or the length of time you’ll be repaying your mortgage.

This calculator is for illustrative purposes only.

Important information

This calculator is for illustrative purposes only and it does not provide a precise calculation.
It's intended to give you information and guidance about potential interest savings, term reductions and monthly payment reductions.

To illustrate savings, we’ve made the following assumptions:

  • The results displayed are based on the information you have entered. The term is rounded to the nearest year.
  • The interest rate will remain the same for the term of the mortgage
  • The results are based on the repayment type and term you have entered
  • Savings are rounded down to the nearest pound and year

Please note the calculator does not factor in any early repayment charges that could be incurred as a result of exceeding your overpayment allowance. If you are unsure about your overpayment allowance, please refer to your mortgage offer or contact your mortgage provider.

Guidance on making overpayments

For more information about the benefits of overpaying and how to do it visit our Guide to Overpaying a Mortgage

Read our guide

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