It lays out each fee and dollar still due before you completely pay off your mortgage. Here's how it works.The mortgage payoff statement is a document that provides a comprehensive breakdown of the remaining balance on a mortgage. A 10day payoff refers to the time it takes for your new lender to pay off your old loans during a refinance. A Satisfaction of Security Instrument is a document that shows an individual has paid a deed of trust or a mortgage in full. "Payoff amount" is generally higher than the remaining balance on the home. 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. 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.