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 shows the remaining balance on your mortgage, including fees, interest, etc.Learn more about what a payoff quote is and how to request one. Fill out the form below to request a loan payoff letter. If you have any questions, please contact Loan Customer Service at 1-800-677-6272 option 5, option 2. A payoff letter shows the remaining balance on your mortgage, including fees, interest, etc. Learn more about what a payoff quote is and how to request one. Do you need a loan payoff request form? 504. Payoff of first mortgage loan. 103. Settlement charges to borrower (line 1400). 403. 108. Assessments. 408.