This tool figures a loan's monthly and balloon payments, based on the amount borrowed, the loan term and the annual interest rate. A balloon loan is usually rather short, with a term of three to five years, but the payment is based on a term of up to 15 years.For purposes of the attached surety bond, the Principal may be an Ohio Mortgage Loan Act (OMLA) registrant obtaining a surety bond in. Use the balloon payment calculator to estimate the monthly payment and the final lump sum of a given balloon loan construction.