What is the difference between a Fixed Rate Mortgage and an Adjustable Rate Mortgage (ARM)?
The interest rate on a Fixed Rate Mortgage stays the same over the life of the loan. The rate on an Adjustable Rate Mortgage changes or adjusts after a specific time period. For example, the interest rate on a 30 year fixed mortgage will stay the same for 30 years, while the interest rate on a 3 year ARM will stay the same for 3 years, and then will adjust afterwards. Both Fixed Rate and Adjustable Rate mortgages can have Full Amortizing or Interest Only payment structures.
With a fixed rate mortgage, your interest rate remains constant for the life of the loan. Many fixed rate mortgages are 15-year or 30-year loans, but other terms are available. The interest rate on an ARM fluctuates according to an index and a margin agreed to in advance by the borrower and lender.