Remaining balance over time
Yearly schedule
| Year | Capital paid | Interest paid | Remaining balance | Remaining balance |
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Yearly schedule for mortgage 2
| Year | Capital paid | Interest paid | Remaining balance | Remaining balance |
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What this mortgage overpayments calculator does
This mortgage overpayments calculator shows how recurring extra payments change your mortgage outcome. It models monthly repayment, total paid, total interest, interest saving, and term reduced using the same shared engine as the main mortgage calculator.
Set your loan amount, term, mortgage type, interest rate, and overpayment pattern to compare your base mortgage against your mortgage with overpayments.
How overpayments are calculated
Overpayments are applied to principal at the selected recurring interval (monthly, quarterly, every 6 months, or annually). Reducing principal earlier lowers future interest, which can shorten the mortgage term and reduce total interest paid.
What your results show
- Monthly payment
- Overpayment amount and cadence
- Total paid over term
- Total interest paid
- Interest saving of
- Term reduced by
- Updated chart and yearly schedule
All calculations update instantly in your browser. No personal data is stored or transmitted.
Assumptions and limitations
Results assume a fixed annual interest rate, monthly compounding, and no refinancing or lender-specific penalties. Taxes, legal fees, and insurance are not included.
Frequently asked questions
Can I compare overpayment frequencies?
Yes. You can switch recurring frequency and instantly compare how each pattern affects interest and term length.
Does overpaying always reduce total interest?
In this fixed-rate model, yes. Paying principal earlier reduces the balance that future interest is charged on.
Does this page use the same logic as other mortgage pages?
Yes. Mortgage calculator, comparison calculator, and overpayments calculator share the same calculation and rendering logic.