Mortgage Payoff Calculator How much interest can you save by increasing your mortgage payment? The mortgage payoff calculator helps you find out. Click the "View Report" button to see a complete amortization payment schedule and how much you can save on your mortgage. Javascript is required for this calculator. If you are using Internet Explorer, you may need to select to "Allow Blocked Content" to view this calculator. For more information about these these financial calculators please visit: Financial Calculators from KJE Computer Solutions, Inc.