How to use
- Replace the example inputs with your loan and property figures.
- Select Calculate to update the estimate and any schedule.
- Change one assumption at a time, then compare the result with the earlier scenario.
How this calculation works
The monthly payment follows the entered amortization term. At the selected balloon month, the calculator reads the remaining balance immediately after that month’s regular payment. That remaining principal is the modeled balloon obligation.
Balloon = balance remaining after the selected regular payment
Worked example
Illustrative inputs — not a quote or a local average.
- Loan balance
- $320,000.00
- Interest rate
- 6.5 %
- Amortization term
- 30 years
- Balloon due after
- 7 years
Principal & interest: $2,022.62. Balance due after regular payment: $289,331.98. Interest through balloon month: $139,231.87.
Reading the result
A manageable monthly payment can coexist with a substantial maturity payment. Compare the balloon balance with a realistic repayment plan. The chart continues to show the underlying amortization schedule for context; it does not extend the contractual maturity date.
Before acting on the estimate
Refinancing at maturity is not guaranteed. A changed property value, income or lending environment can affect the options available. The estimate omits accrued daily interest, maturity fees and contract-specific payoff adjustments.

Questions, answered
Is the balloon included in the regular payment?
No. It is the additional principal still owed after that installment.
What happens if maturity equals the full term?
The modeled remaining balance is effectively zero.