Mortgage Overpayment Calculator
See how much interest and time you save by overpaying your mortgage. Free, private and instant.
How to use the Mortgage Overpayment Calculator
- Enter your values in the fields above.
- The result updates automatically as you type.
- Copy or note the figures you need.
About this tool
Enter your balance, rate and remaining term, then add a monthly overpayment or a one-off lump sum. The calculator shows how many months earlier you would be mortgage-free and how much interest you would save. Check your lender's overpayment limits and early repayment charges first.
Mortgage Overpayment Calculator is part of ToolStack Hub's Finance & UK Tax Calculators. It runs entirely in your browser, which keeps your data private and makes results instant. There is nothing to install, no account to create and no usage limit.
Frequently asked questions
Is the Mortgage Overpayment Calculator free?
Yes. Mortgage Overpayment Calculator is completely free with no sign-up, limits or watermarks.
Is my data private when I use the Mortgage Overpayment Calculator?
Yes. It runs in your browser, so your input is not uploaded to our servers.
Does it work on mobile?
Yes. ToolStack Hub tools work on phones, tablets and desktop browsers.
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