Important to know: Using the overpayment calculator
This calculator is only an illustration and will not give an accurate result.
Mortgage amount
Current monthly mortgage payment
Regular overpayment
Step 1
Input your mortgage amount and mortgage term, then add your current monthly mortgage payment amount or interest rate.
Step 2
Add a regular overpayment amount. You can also choose to add a one-off overpayment amount.
Step 3
Calculate your results to show how your overpayments could help you pay off your mortgage sooner.
Mortgage overpayment guide
Find everything you need to know about the benefits, risks, and types of overpayments.
Log in for personal support
Check your overpayment options, find your overpayment allowance, and get help.
Early repayment charges (ERCs)
Some mortgages limit the amount you can overpay before paying an ERC. Find out more about ERCs and how they can affect you.