Set loan terms with larger payments at the end. This tool figures a loan's monthly and balloon payments, based on the amount borrowed, the loan term and the annual interest rate.• If you wish to prepare an amortization table of the loan that includes interest. • If you want to see and determine the amount of monthly payment for the loan. An unsecured promissory note with amortized payments is a promise to pay back a loan when there's no collateral, and it'll be repaid in equal installments. Amotization Schedule. A timetable for payment of a mortgage loan.