All mortgages can be divided into two main
categories: conventional and government loans.
Additionally, each of the various mortgage programs
can further be classified as fixed rate loans,
adjustable rate loans, or a combination of the two.
In last month’s technical bulletin, we discussed the
different types of conventional and government loans.
In this month’s technical bulletin, we’ll talk about
fixed rate vs. adjustable rate loans.
Fixed Rate Mortgages
With fixed rate mortgage (FRM) loans, the interest
rate and monthly payments remain fixed for the
period of the loan. Fixed-rate mortgages are available
for 40, 30, 25, 20, 15, and 10 years. Generally, the
shorter the term of a loan, the lower the interest rate.
The most popular mortgage terms are 30 and 15
years. With the traditional 30-year fixed rate mortgage,
monthly payments are lower than they would be
on a shorter term loan. But if a borrower can afford
higher monthly payments, a 15-year fixed-rate mortgage
allows repayment twice as fast and saves more
than half the total interest costs of a 30-year loan.
The payments on fixed rate fully amortizing loans are
calculated so that at the end of the term the mortgage
loan is paid in full. During the early amortization
period, a large percentage of the monthly payment is
used for paying the interest. As the loan is paid down,
more of the monthly payment is applied to principal.
With bi-weekly mortgage plans, a borrower pays half
of the monthly mortgage payment every two weeks.
Because of the extra principal paid each year, the
loan is repaid in less time. For example, a 30 year
loan can be paid off within 21–23 years.
Adjustable Rate Mortgages
A variable or adjustable rate loan is a loan whose
interest rate, and therefore monthly payments,
fluctuate over the period of the loan. With this type
of mortgage, periodic adjustments based on changes
in a defined index are made to the interest rate. The
index for a particular loan is established at the time
of application.
Well known indexes include the Constant Maturity
Treasury (CMT), Treasury Bill (T-Bill), 12-Month
Treasury Average (MTA), 11th District Cost of Funds
Index (COFI), Cost of Savings Index (COSI), London
Inter Bank Offering Rates (LIBOR), Certificates of
Deposit (CD) Indexes, and Prime Rate.
The new interest rate is determined by adding the
index and the margin. The margin is fixed percentage
points added to the index to compute the interest
rate. The result will then be rounded to the nearest
one-eighth of a percent. For example: If the index is
5.3% and the margin is 2.5%, then the new interest
rate = 5.3% + 2.5% = 7.8%. The nearest to 0.8% is
0.75% = 6/8%. The result will be 7.75%.
The margins remain fixed for the term of the loan
and are not impacted by the financial markets and
movement of interest rates. Lenders use a variety of
margins depending upon the loan program and
adjustment periods.
Most ARMs have interest rate caps to protect
borrowers from enormous increases in monthly payments.
A lifetime cap limits the interest rate increase
over the life of the loan. A periodic or adjustment cap
limits how much the interest rate can rise at one
time.
With most ARMs, the interest rate can adjust every six
months, once a year, or every 3, 5, 7, or 10 years. A
loan with an adjustment period of 6 months is called
a 6-month ARM; a loan with an adjustment period of
1 year is called a 1-year ARM, and so on.
Most ARMs offer an initial lower interest rate than the
fully indexed rate (index plus margin) during the
initial period of the loan, which could be one month
or a year or more. This is known as a teaser rate.
All ARMs are available with 30-year terms and some
with 15-year terms, and adjustable rate mortgages
generally have a lower initial interest rate than fixed
rate loans.
Negatively Amortizing Loans
Some types of ARMs offer payment caps rather
than interest rate caps, which limit the amount the
monthly payment can increase. If a loan has a payment
cap but has no periodic interest rate cap, then
the loan may become negatively amortized: if interest
rates rise to the point that the monthly mortgage payment
does not cover the interest due, any unpaid
interest will get added to the loan balance, so the
loan balance increases. However, the borrower
always has the option to pay the minimum monthly
payment, or the fully amortized amount due.
For example, if a loan has a payment cap of 7.5%
with a payment of $1,000 per month and interest
rates rise, the new payment could go up to, say,
$1,200 per month. But the capped payment is only
$1075. The other $125 would get added to the loan
balance to be paid off over time, unless the borrower
decides to pay that amount now.
The interest rate on negatively amortized loans can
adjust monthly.
The advantages of negatively amortized loans, also
known as deferred interest loans, are that they allow
borrowers to control cash flow (because the payment
is relatively stable), take advantage of low interest
rates relative to the market at any given time, and pay
back the money borrowed today at a depreciated
value years from now (because of natural inflation).
Combined (Hybrid) Loans
Hybrid loans, a combination of fixed and ARM loans,
come in different varieties:
Fixed-period ARMs
With fixed-period ARMs homeowners can enjoy from
three to ten years of fixed payments before the initial
interest rate changes. At the end of the fixed period,
the interest rate will adjust annually. Fixed-period
ARMs—30/3/1, 30/5/1, 30/7/1 and 30/10/1—are
generally tied to the one-year Treasury securities
index. ARMs with an initial fixed period, in addition
to lifetime and adjustment caps, usually also have a
first adjustment cap. It limits the interest rate paid the
first time the rate is adjusted. First adjustment caps
vary with the type of loan program.
The advantage of these loans is that the interest rate
is lower than for a 30-year fixed (the lender is not
locked in for as long, so their risk is lower and they
can charge less) but there is still the benefit of a fixed
rate for a period of time.
Two-Step Mortgage
Two-step mortgages have a fixed rate for a certain
time, most often 5 or 7 years, and then the interest
rate changes to a current market rate.
Two-step mortgages can be convertible or nonconvertible.
With a convertible two-step mortgage, also
known as a 5/25 or a 7/23, the interest rate for the
initial five or seven years is fixed. The loan then converts
to a fixed-rate mortgage (at a different interest
rate) for the remaining 25 or 23 years, respectively.
A non-convertible two-step mortgage means that the
5/25 or 7/23 has a fixed interest rate for the first five
or seven years, then converts into an ARM that adjusts
annually for the remaining 25 or 23 years of the loan.
Convertible ARMs
Some ARMs come with an option to convert them to
a fixed-rate mortgage at designated times (usually
during the first five years on the adjustment date), if
interest rates start to rise. The new rate is established
at the current market rate for fixed-rate mortgages.
The conversion is typically done for a nominal fee
and requires almost no paperwork. The disadvantage
is that the conversion interest rate is typically a little
higher than the market rate at that time.
The other kind of convertible mortgage is a fixed
rate loan with a rate reduction option. If rates have
dropped since the time of closing, this type of mortgage
allows the borrower, under some prescribed
conditions and for a small conversion fee, to adjust
the mortgage to the going market rate.
Graduated Payment Mortgages
(GPMs)
Graduated payment mortgages have payments that
start low and gradually increase at predetermined
times. A lower initial payment allows a borrower
to qualify for a larger loan amount. The monthly
payments will eventually be higher in order to catch
up from the lower payments. In fact, the loan will
be negatively amortizing during the early years of
the loan, then the principal will be paid off at an
accelerated pace through the later years.
Lenders offer different GPM payment plans, which
vary in the rate of payment increases and the number
of years over which the payments will increase.
The greater the rate of increase or the longer the
period of increase, the lower the mortgage payments
in the early years.
Buydown Mortgage
A temporary buydown is the type of loan with an initially
discounted interest rate which gradually
increases to an agreed-upon fixed rate usually within
one to three years. An initially discounted rate allows
you to qualify for more house with the same income
and gives you the advantage of lower initial monthly
payments for the first years of the loan when extra
money may be needed for furnishings or home
improvements. To reduce your monthly payments
during the first few years of a mortgage you make an
initial lump sum payment to the lender. If you do not
have the cash to pay for the buydown, the lender can
pay this fee if you agree on a little higher interest
rate.
A very popular buydown is the 2-1 buydown. 3-2-1
and 1-0 buydowns are also available, though less
common. The compressed buydown works the same
way, but with the interest rate changing every six
months instead of yearly.
The lower rate may apply for the full duration of the
loan or for just the first few years. A buydown results
in lower payments and may be used to qualify a
borrower who would otherwise not qualify .
With a variety of different loan programs available, it
is important to choose the type of loan that will best
suit your needs.