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.Paying off your mortgage early can save money in the long run. Do you need a loan payoff request form? What is a Payoff Agreement? A payoff agreement is an informal contract in which a creditor agrees to accept the balance of a debt owed as full payment. Creating a payoff letter is essential to any loan or mortgage repayment process. Our free templates and this guide can help you get started. This is an example of a payoff letter used in a syndicated loan transaction. This payoff letter (including the defined terms such as Lenders,.