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.Please provide payoff information for the above referenced mortgage. Also, please provide loan number and per diem interest. The Vehicle Payoff Sample Letter form is a crucial document for individuals aiming to transfer their vehicle loan to the State Department Federal Credit Union. This form is furnished to give you a statement of actual settlement costs. Payoff of first mortgage loan. 103. For a third-party authorization of a payoff, there are the requirement of some forms to be filled up and other documentations. If you know you're not going to be able to keep up with your loan payments, you might be better off selling the car yourself and paying off the debt. At Ascentra Credit Union, our motto is listening, caring, doing what's right.