By including a per diem amount in the letter, the parties will not have to execute another payoff letter if the termination date. A 10 day payoff is crucial to getting your old loans paid off during a refinance.Learn how it works from start to finish. What is a Payoff Agreement? A payoff agreement is an informal contract in which a creditor agrees to accept the balance of a debt owed as full payment. Please include a per diem amount in the statement. Please email this information to as soon as possible. Open the account in the State of Nevada's name. Once screening is complete, enter the CAIVRS confirmation code on VA Form. 26-6393, Loan Analysis, in the space to the right of the "no" block in item 46.