By including a per diem amount in the letter, the parties will not have to execute another payoff letter if the termination date. Please accept this as my authorization to issue a payoff statement to.Through an effective date of . The release is what removes the lien, which in your case isn't there. A payoff agreement is an informal contract in which a creditor agrees to accept the balance of a debt owed as full payment. Please provide payoff information for the above referenced mortgage. Also, please provide loan number and per diem interest. A mortgage payoff letter can come in two forms. One form tells borrowers the remaining principal amount and interest they have to pay to close out the loan. A blank sample HB Letter 16 is included.