"Payoff amount" is generally higher than the remaining balance on the home. How do I calculate a mortgage payoff?1. Understand why your mortgage payoff amount does not equal your current balance. A mortgage payoff letter can come in two forms. One form tells borrowers the remaining principal amount and interest they have to pay to close out the loan. Payoff letters aren't the only way to learn about your current loan balance. You can also talk to your lender and request a verbal payoff quote. Online Banking, Express Mortgage, VISA cards iwth great features and no surprises. If you have questions about your loan with Servbank and would like to speak to someone, please call us at (866) 867-0330. The mortgage payoff statement is a document that provides a comprehensive breakdown of the remaining balance on a mortgage.