By including a per diem amount in the letter, the parties will not have to execute another payoff letter if the termination date. We request you furnish our office a written payoff with per diem, please fax the payoff as soon as possible to (352)282-4895.Customer: I Check the payoff letter and it does not have a per diem amount. It typically details the principal balance, interest due as of that date, per diem, any late fees, etc. Use the payment calculator to estimate monthly payments. Check out the Chase Auto Education Center to get car guidance from a trusted source. Loans (the "Payoff Sum"). So long as you pay the payoff within the time frame of the payoff you should not owe additional money. Pay it off earlier in the time frame rather than later. The Payoff Amount and Per Diem Amount quoted herein are effective through December 31, 2020.