Adjustable or Fixed Rate Mortgage?

Buying a new home is a big step and for some is the largest investment they have ever made. Most people can not afford to buy a home outright, so they get a loan instead. This loan is called a mortgage and there are two main kinds.

Fixed Rate Mortgage

With a fixed rate mortgage you are guaranteed by the lender to maintain the same interest rate during the entire length of your loan. The major advantage to this type of loan is that if the federal interest rates go up, you are locked in at a lower rate that can not be changed by the bank. There is a flip side to this though, because if the federal interest rate goes down, your interest rate will not.

Most people that finance their home with a fixed rate mortgage, do so over the course of 30 years. The advantage to this is that you get a larger tax advantage and because it is spread out over 30 years a lower monthly payment.

Others opt for a shorter mortgage of 15 or 20 years. Generally the shorter the loan, the lower the interest rate. This means you pay less interest, but because you are paying over a shorter time the monthly payments will be higher.

Adjustable Rate Mortgage (ARM)

An adjustable rate mortgage, as the name implies, is a mortgage that does not have a fixed interest rate. The interest rate is set to be re-evaluated at a predetermined period. The interest rate can go up or down and a cap is placed on the percent it can change each time.

The frequency that the interest rate adjusts is set by the bank, as is the amount the interest rate can change each time. For example say you are offered a 4.9% 3/1 ARM. This means that the first 3 years, the interest rate will stay at 4.9%. After that your interest rate will adjust every 1 year. The percent that the interest rate can go up or down is set at the time of the loan, but it is often 1%. So in 4 years when the interest rate change, you would probably be paying 5.9%. The next year it would be re-evaluated and would either raise or lower 1%.

The advantage to this type of loan is that your initial interest rate will be generally less expensive than a fixed rate mortgage. If you keep the loan without refinancing though, you will likely end up with a much higher interest rate because except in times of recession, your interest rate will not typically go down. An adjustable rate mortgage is perfect if you intend to refinance or sell your home within a few years before the interest rate changes.