April 19, 2004, Revised August 31, 2007
"I was planning to pay 1 point to reduce the rate on a new 30-year FRM
from 4.125% to 3.75%. I expect to be in the house about 7 years. Using
your calculator, I get a break-even of 34 months. However, I expect to
add substantially to my monthly payment in order to pay down this loan
faster. Will this affect my break-even?"
Yes, it will lengthen the period before you break even – meaning that
paying the point is not quite as good an investment.
Points are fees the borrower pays the lender at the time the loan is
closed, expressed as a percent of the loan. On a $100,000 loan, 1 point
means a payment of $1,000. The more points a borrower pays, the lower
the interest rate.
The benefit from paying points consists of the saving in monthly payment
resulting from the lower interest rate, plus the lower loan balance in
the month the loan is paid in full. The longer the borrower holds the
mortgage, the greater the benefit.
For example, on December 28, 2006, I found that a 30-year fixed-rate
mortgage at 5.75% and zero points was available at 5% with 3.76 points.
If this loan was paid off after 7 years with no extra payments, the
return on the investment in points would be 7.84%. This was calculated
from 11c)
Mortgage Points Calculator: Rate of Return on FRMs. If the borrower
made an extra payment every month equal to 8.9% of the payment, which is
the payment increase from moving to a 25-year amortization schedule, the
return would fall to 7.26%.
So prepayments reduce the return on investment, but in most cases the
reduction would not be enough to affect the investment decision. For a
fuller discussion of the wisdom of paying points as an investment, see
Is it
True That Paying Points Doesn't Pay?