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.Step four: Request close-out documentation. You'll want follow the lender's instructions to request a Release of Deed. Processing time for payoffs statements is up to seven business days, and payoffs will not be processed without proper authorization. Texas Bay Credit Union offers online tools to figure out how to quickly pay off your mortgage. Open an account today with TBCU! We offer the best mortgage tools available on the Internet - easy, convenient, online shopping for the best loan programs and most current rates available. A payoff letter shows the remaining balance on your mortgage, including fees, interest, etc. Learn more about what a payoff quote is and how to request one.