Depending on your lender, you may have to sign in to an online account, call a helpline, or send a formal letter to start the request process. The mortgage payoff statement is a document that provides a comprehensive breakdown of the remaining balance on a mortgage.Ask for a payoff statement good thru the first of the month that you plan to pay it off in. A 10day payoff refers to the time it takes for your new lender to pay off your old loans during a refinance. 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 Satisfaction of Security Instrument is a document that shows an individual has paid a deed of trust or a mortgage in full. Here's how to determine your payoff amount: Contact your lender: Contact your mortgage servicer to request an official payoff statement. How can I request a payoff statement? Contact your servicing bank (where you make your monthly mortgage payments) and request a payoff statement.