Note: The purchased version of this document includes a Loan Amortization Schedule Calculator (in Microsoft Excel format). Edit, sign, and share balloon mortgage note online.No need to install software, just go to DocHub, and sign up instantly and for free. 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 mortgage is one of many loan types you can get to buy a home. Balloon loans are short-term loans that provide the benefit of low monthly payments. 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. A balloon loan is a short-term loan that does not fully amortize over its term.