Details: Comparing costs of home loan options - 2005-03-05
On a $100,000 loan for 30 years at 6 percent, the monthly payment on a conventional mortgage would require about $600 - $500 in interest, $100 in principal. With an interest-only loan, you'd pay just the $500 in interest.
Going for an interest-only loan with the same rate but no principal payment for the first 15 years, and your payment would increase to about $844 for the last 15 years of the 30 years.
Read the full story at Lincoln Journal Star