Interest only loans are available with both fixed rates and adjustable rate mortgages. Paying the interest only allows borrowers to lower their monthly mortgage payment.

With an Interest Only loan, you make no payments to principle. They only way to gain equity is to make additional higher payments or choose a home in a high appreciation area.

In contrast, with an adjustable rate mortgage (ARM) , your payments will vary over time.

The average homeowner in America sells or refinances roughly every 5 years. Keeping this in mind, it may not always be in your best interest to go with a fixed rate mortgage for 30 years. An ARM loan may be more appropriate for you, especially if you know you plan on moving or refinancing within the first few years. A 5/1 ARM will generally provide a lower interest rate than a 30 year fixed rate mortgage will and the lower rate will equate to a lower mortgage payment. So think about not just the now when obtaining a mortgage but the near future as well.

Adjustable rate mortgages typically have an initial fixed rate lower than the rate of a comparable fixed rate mortgage. The initial fixed rate period is followed by adjustment intervals. For example, a "3/1 ARM" is fixed at an initial low rate for the first 3 years, and then adjusts every year based on an index. Common ARMs are: 1/1, 3/1, 5/1, 7/1, and 10/1. (Don't confuse ARMs and balloons )

Interest Only is an option that can be chosen for most types of mortgages, Fixed or ARMs. The interest only option allows the borrower to make only interest payments. This is usually only allowed for the first 5-10 yrs. Choosing an interest only option can also affect your interest rate. There is usually an add on of 0.25% - 0.5% to the interest rate for interest only payments.