The City of San José processes requests for payoff demands of existing homebuyer and home repair loans, and affordability restrictions (i.e. Step 1: Get the payoff amount and instructions.Creating a payoff letter is essential to any loan or mortgage repayment process. Our free templates and this guide can help you get started. 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. 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. You'll use the information on a 1099INT to fill in certain fields of your federal income tax return.