This calculator computes the payment amount necessary for a mortgage with a balloon payment, using monthly interest compounding and monthly payments. FHA, VA, and USDA loans, for example, may all offer lower interest rates and other appealing qualities, like lower down payment requirements.A balloon mortgage is a mediumterm real estate loan that allows borrowers to make low or no monthly payments. A balloon payment mortgage is a type of balloon loan that features relatively low monthly payments for a set period, typically 5 to 7 years. A balloon mortgage is a type of home loan that charges a lumpsum balloon payment at the end of the term.