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.The following is an example of promissory note which can be used to guide and direct eligibility decisions in which promissory notes are involved. 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. All prepayments shall first be applied to outstanding late fees, then to accrued interest and thereafter to the principal loan amount. NOTE. Complete the requested information, date of promissory note, and the principal amount of the note.