| | Fixed vs. Adjustable Rate Mortgages
Like homes themselves, mortgages come in many sizes and
types, and one of the most important decisions you face as you consider your
choices is whether to take out a fixed or an adjustable rate mortgage. The type
of mortgage that's appropriate for you depends on many factors, such as your
tolerance for risk and how long you expect to stay in your home.
Fixed rate mortgages
Fixed rate mortgages are attractive to homebuyers
because loan payments are predictable. As the name implies, the interest rate
on a conventional fixed rate mortgage remains the same throughout the term
(length) of the loan. Your monthly payment (consisting of principal and
interest) remains the same as well. The entire mortgage is repaid in equal
monthly installments over the term of the loan (e.g., 15, 20, 30 years).
The good news is, you're locked in; the bad news is,
you're locked in
Locking in a fixed interest rate on your mortgage has its
good and bad points. If interest rates rise, yours won't; as a result, your
monthly mortgage payment will always remain the same. This can be reassuring to
homeowners on tight budgets or with fixed incomes. For this reason, fixed rate
mortgages often appeal to individuals with a low tolerance for the risk
associated with fluctuating monthly payments.
But if interest rates go down, yours won't, and your (now
high) mortgage payment will remain the same. While you might be able to
refinance your home, paying off the higher-rate mortgage with one that carries
a lower interest rate, this isn't always possible. In addition, the interest
rate might need to drop significantly to offset the expenses associated with
refinancing, and you'd need to remain in your home long enough to allow the
monthly savings associated with the lower rate to recoup those expenses.
One special type of fixed rate mortgage that may be
available is an interest-only fixed rate mortgage. With this type of mortgage,
the term of the loan is divided into two periods. During the first period
(e.g., 10 years) you pay only interest and no principal so your payment is
lower. During the second period (e.g., 20 years) you pay both principal and
interest until the loan is paid off so your payment is higher. Because these
mortgages carry certain risks, they're not appropriate for everyone; you should be
certain you can afford the higher payment you'll need to make during the second
period before considering this type of fixed rate mortgage.
Adjustable rate mortgages (ARMs)
With an ARM, also called a variable rate mortgage, your
interest rate is adjusted periodically, rising or falling to keep pace with
changes in market interest rate fluctuations. Since the term of your mortgage
remains constant, the amount necessary to pay off your loan by the end of the
term changes as your loan's interest rate changes. Thus, your monthly payment
amount is recalculated with each rate adjustment.
Depending on what's specified in the mortgage contract, an
ARM can be adjusted semi-annually, quarterly, or even monthly, but most are
adjusted annually. The adjustments are made on the basis of a formula specified
in the mortgage contract. To adjust the rate, the lender uses an index that
reflects general interest rate trends, such as the one-year Treasury securities
index, and adds to it a margin reflecting the lender's profit (or markup) on
the money loaned to you. Thus, if the index is 3.13% and the markup is 2.25%,
the ARM interest rate would be 5.38%.
What's to keep the interest rate from going through the
roof--or, for that matter, from plunging through the floor? Most ARMs specify
interest rate caps. The periodic adjustment cap may limit the amount of rate
change, up or down, allowed at any single adjustment period. A lifetime cap may
indicate that the interest rate may not go any higher--or lower--than a
specified percentage over--or under--the initial interest rate.
Caution:
Some ARMs cap the payment amount that you are required to
make, but not the interest adjustment. With these loans, it's important to note
that payment caps can result in negative amortization during periods of rising
interest rates. If your monthly payment would be less than the interest accrued
that month, the unpaid interest would be added to your principal, and your
outstanding balance would actually increase, even though you continued to make
your required monthly payments.
The initial interest rates (referred to as teaser rates) on
ARMs are generally lower than the rates on fixed rate mortgages. If you can
tolerate uncertainty in your mortgage interest rate and fluctuations in your
monthly mortgage payment amount, believe that interest rates will stay low or
go lower in the future, or plan to live in your home for only a short period of
time, then you may want to consider an ARM.
Hybrid ARMs
Hybrid ARMs are mortgage loans that offer a fixed interest
rate for a certain time period (3, 5, 7, or 10 years), and then convert to a
1-year ARM. The initial fixed interest rate on a hybrid ARM is often
considerably lower than the rate on either a 15-year or 30-year fixed rate
mortgage. The longer the initial fixed-rate term, however, the higher the
interest rate for that term will be. Generally speaking, even the lowest of
these fixed rates is higher than the initial (teaser) rate of a conventional
1-year ARM.
Conventional fixed rate mortgage | Adjustable rate mortgage | Hybrid adjustable rate mortgage |
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- Low risk
- 10- to 40-year term
- Interest rate doesn't change during term
- Payment remains the same
| - Higher risk
- Initial interest rate often lower than fixed rate
mortgage
- Interest rate may go up or down
- Interest rate usually adjusted annually
- Rate adjustments may be limited by cap(s)
- Payment caps can result in negative amortization in
periods of rising interest rates
| - Higher risk
- Initial rate often lower than fixed rate mortgage
- Fixed term for 1 to 10 years, then becomes a 1-year
ARM
- May have option to convert to a fixed rate mortgage
before becoming a 1-year ARM
- Interest rate may go up or down
- Rate adjustments may be limited by caps
- Payment caps can result in negative amortization in
periods of rising interest rates
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Hybrid ARMs are best suited for individuals who plan to stay in
their homes for a short period of time (3 to 10 years), since they can take
advantage of the low initial fixed interest rate without worrying about how the
loan will change when it converts to an ARM. If you think your plans may change
or you are planning on staying put for a while, look for a hybrid ARM with a
conversion option. This option will allow you to convert your loan to a fixed
rate loan before it turns into an ARM.
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