This calculator solves for mortgage payment with option to prepay. Input the Principal Loan Balance, Interest Rate, Term, Starting Month and Year. Then select your Pre-payment frequency, the AMOUNT you’d Prepay, and select Calculate Now to see your results over time.

Change these fields as desired:

Principal Loan Balance
Annual Interest Rate (%)
Amortization Length (YEARS)
Starting Month
Starting Year
Pre-payment method
Monthly/Annually/One-Time Principal Prepayment AMOUNT
One-Time Prepayment to be paid after month:
Show full amortization table?