Depending on your lender, you may have to sign in to an online account, call a helpline, or send a formal letter to start the request process. The mortgage payoff statement is a document that provides a comprehensive breakdown of the remaining balance on a mortgage.How to fill out the Payoff Request Letter Templates? 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. 1) Call the mortgage department and request an official principal payoff letter. Do you need a loan payoff request form? 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. You may also call the customer service center to request a payoff letter.