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Mortgage tools

Mortgage overpayment calculator

See how a regular extra payment could reduce interest and shorten a repayment mortgage.

Illustrative input, not a current product rate.
Your illustration—

What this illustration assumes

Assumes a constant rate, monthly payments and overpayments that reduce the term. Excludes early repayment charges. Check your lender’s overpayment allowance and how it applies additional payments.

Calculated on your device. The figures you enter are not sent to Jack. A lender or insurer may calculate costs differently.

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Understand the figures

How to interpret overpayment savings

The illustration assumes a regular additional monthly payment and a constant rate. It shows the effect of paying down capital sooner while keeping the assumptions stated by the tool.

Check your mortgage’s allowance and early repayment charges first. Also consider access to emergency cash and whether your lender reduces the payment or the term when applying an overpayment.

Illustrations support preparation for a conversation. Read the assumptions above and how website information is prepared.

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