Additional Mortgage Payment Calculator
See how extra monthly principal payments can shorten loan term and reduce interest.
Interest saved
₹ 0.00
Months saved
0
Base payment
₹ 0.00
New payment (with extra)
₹ 0.00
First payment
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Last payment
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Scheduled vs additional payments
Compare remaining balance and cumulative interest with minimum payments vs your extra monthly payment (annual points).
| S.No | Date | Payment | Principal | Interest | Remaining balance |
|---|
How to Use This Calculator
- Enter Years remaining on mortgage, Original mortgage term, and Original mortgage amount.
- Add your Additional monthly payment and Interest rate.
- Click Calculate for interest saved, months saved, base vs new payment, the chart, and amortization schedule.
- Use Excel or PDF to export the schedule.
Frequently Asked Questions
Is the extra payment assumed every month?
Yes. The model applies the same extra principal each month until the loan is paid off.
Does this handle biweekly or lump-sum prepayments?
Lump sums are not modeled here. For half-payments every two weeks, use the Biweekly mortgage calculator linked in the sidebar.
Are there prepayment penalties?
The math assumes no penalty; check your note for lender rules.
