This financial calculator helps determine how much interest you save by increasing your mortgage payment. Click the "View Report" button below the graph to see a complete amortization payment schedule and how much you can save on your mortgage!
Annual interest rate
The annual interest rate used to calculate your monthly payment. Please note that this is different than an Annual Percentage Rate (APR) which includes other expenses such as mortgage insurance, and the origination fee and or point(s), which were paid when the mortgage was first originated. The APR is normally higher than the simple interest rate.
Original mortgage term
Total length, or term, of your original mortgage in years. The most common lengths are 15 years and 30 years.
Total number of years remaining on your original mortgage.
Original mortgage amount
The original amount financed with your mortgage, not to be confused with the current remaining balance or principal balance.
Additional monthly payment
Your proposed extra payment per month. This payment will be used to reduce your principal balance.
Current mortgage payment
Monthly principal and interest payment (PI) based on your original mortgage amount, term and interest rate. This does not include escrows for items such as homeowner's insurance and real estate taxes.
Monthly accelerated payment
Scheduled payment plus additional monthly payment.
Total amount you would save in interest if you made the accelerated payment until your mortgage was paid in full.
This calculator is for illustrative purposes only. The information shown is designed to provide basic information about mortgage financing. Please consult with your tax advisor to determine the tax impact of home ownership and interest deductibility for your individual circumstances.