In the payoff demand statement, the beneficiary must state the amount of the unpaid balance and interest rate together with the total amounts. 1) Call the mortgage department and request an official principal payoff letter.Any overage payments will be refunded at a later date. Do you need a loan payoff request form? A lender's payoff statement or letter will show the amount you need to pay to completely close out the loan. Alternatively, your lender may have a form you must fill out.