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. Enclosed with this letter, you will find a formal payoff statement confirming the full satisfaction of your loan.A payoff letter provides instructions on how to pay off a loan with a lump sum before the loan term ends. Learn how payoff letters work. Looking to save on your car loan? Discover how to refinance my auto Dallas for lower rates and better terms tailored to your budget. Add or Remove a Lien on a Vehicle. To add or remove a lien on your vehicle title, visit your local county tax office. Loan Payoff Address Standard Mailing​ PO Box 7000. The document is a payoff statement for a vehicle loan, detailing the total payoff amount and deadlines.