A lender's payoff statement or letter will show the amount you need to pay to completely close out the loan. 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. If you are looking to payoff your vehicle, there is a sample letter form that you can use as a guide. The letter should be professional and informative.