Column Delivered August 21, 2000, Revised September 6, 2002, November
30, 2006
“I need $50,000 to remodel my house. Is it better to refinance my
existing mortgage (with a balance about $140,000) into a new $190,000
mortgage, or should I borrow the extra $50,000 with a home equity
loan.?”
Every homeowner in need of extra cash faces this question. To answer it,
you must consider several factors, including:
* The interest rate and points you have to pay to refinance the first
mortgage, compared with the same costs for a second mortgage.
* Any mortgage insurance requirement on the new first mortgage.
* The interest rate, mortgage insurance, and period remaining on the
term of the existing first mortgage.
* The term you select on the new first relative to that on the new
second.
* The amount of cash you need.
* Your income-tax bracket.
* The length of time you expect to remain in your home.
* The interest rate you can earn on savings.
All these factors are pulled together in calculator (3d),
Refinance to Raise Cash or Take Out a Second Mortgage. This
calculator computes all costs of both options over a future time period
specified by the user. It also shows a break-even interest rate on the
second mortgage -- the highest rate you can pay on the second and come
out ahead of the refinance option.
The second mortgage is the less-costly option if it is available at an
interest rate below the break-even rate.
Consider your case. You have a $140,000 first mortgage and you need
$50,000. The average age of most refinanced mortgages is a few years, so
I'm assuming you acquired yours two years ago, at 7 percent for 30
years, without mortgage insurance.
Example 1 assumes you are in the highest income tax bracket (39.6%) and
can earn 5% on your investments. Your house is now worth $213,000. A new
loan for $190,000 plus settlement costs will require mortgage insurance.
I’m assuming the insurance will continue during the entire 5 years you
expect to remain in your home. The new first mortgage would be for 30
years at 8.25% and one point. The second mortgage for $50,000 plus costs
would be for 15 years at 11.5% and one point.
The break-even rate on the second mortgage is 18.25%, well above the
market rate of 11.5% for the second. Over 5 years, the second would cost
$11,361 less than refinancing the first.
Example 2 is the same, except that I assume you can afford a 15-year
term on the new first mortgage cash-out. The break-even rate on the
second would fall to 16.86%, and the savings on the second would drop to
$8,982.
Example 3 is the same as Example 2, except that I assume you are in the
15% tax bracket. The break-even rate on the second mortgage would drop
to 14.98%, and the savings to $8,230.
Example 4 is the same as 3 except that I assume that your house will
appreciate by 5% a year, resulting in termination of mortgage insurance
on the new first mortgage after 18 months. The break-even rate on the
second would fall to 13.21%, and the savings to $4,021.
Example 5 goes one step further and assumes that marked recent
appreciation in the value of your house eliminates the need for mortgage
insurance altogether. The break-even rate on the second would drop to
12.41% and the savings to $2,138.
Borrowers who acquired mortgages a few years ago at rates significantly
below the current market are likely to do better taking second mortgages
than refinancing. But older mortgages carrying higher rates can be a
different story.
For example, lets make all the assumptions of Example 1, but instead of
having a 7% 30-year loan from 1998 we assume you have a 10% 30-year loan
from 1990. The break-even would be 9.98%, or below the market rate on
the second, and refinancing would save you $2,467 over 5 years compared
to the second.
If we apply the assumptions of Example 5 to the 10% mortgage, the
breakeven on the second would be 3.81% and the savings from refinancing
$17,106.
But don't rely on generalizations because no two situations are
identical. Use the calculator to find the answer that applies to your
precise situation.