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. 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. A 10 day payoff is crucial to getting your old loans paid off during a refinance. Learn how it works from start to finish. If you are looking to payoff your vehicle, there is a sample letter form that you can use as a guide. The letter should be professional and informative. Please write your loan account number on the front of your check, include a payment coupon and mail it to: Sacramento Credit Union GENERAL. What is the contact number for questions about my existing mortgage loan such as payment, monthly statement, or escrow questions? 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.