Places limitations on interest rates after default; 14 . Prohibits balloon payments and negative amortization; 15 .Instead, a borrower may have a different fixed-term: for example, 10 years, with a 30-year amortization. Use this balloon mortgage calculator to view the change in principal over the life of the mortgage. Lenders don't amortize these loans in a traditional way. While term lengths can vary, five-year and 10-year balloon mortgages are standard. As with any loan, look at the current balloon mortgage rates and examine a balloon mortgage amortization schedule before choosing this option. Learn about how balloon payments work.