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. The letter should have a formal, respectful and positive tone. It should also include all key information that the creditor or collection agency needs to know. 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. Jun, car loan car insurance, financing and auto loans talk. Debt settlement can negatively affect your credit score, which can make it more difficult for you to secure financing in the future. It's free - no hidden fees!