Include the payment amount. Include the date you plan to make the payment.So now what do I do? 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. Contact several banks or credit unions to get a prequalification letter that you can take to the dealership. Fill out the sections that are changed. Indicate your reason for requiring a corrected title. Your full name; Your loan account number; Vehicle year, make and model; Vehicle identification number (VIN); Address where you'd like the lien release sent. How can I prove that my car is paid off? Once you pay off your loan, your lender will send you an official release of lien letter.