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. This is a standard form of payoff letter. We currently have two ways to fill out your personalized reading list request: you can complete one online or in person. Alternatively, your lender may have a form you must fill out. We welcome feedback: report an example sentence to the Collins team. One form tells borrowers the remaining principal amount and interest they have to pay to close out the loan.