Enclosed with this letter, you will find a formal payoff statement confirming the full satisfaction of your loan. No information is available for this page.Letter of authorization form (PDF). Full payment of the property tax due must be made before submitting the application. 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. First, get a piece of paper and a pencil or pen. Then write your request on the paper.