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.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. Create a Loan Payoff Letter online and download it as a PDF or Word document. Customize and print a blank Loan Payoff Letter for free. 1. Enter the lender's name and loan account number. Request a payoff quote. 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. Creating a payoff letter is essential to any loan or mortgage repayment process.