Tutorial on Selecting a Rate/Point Combination
18 April 2006, Revised November 15, 2008

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, 2 points means a payment of $2,000. If points are negative, it is called a “rebate”, which the lender pays. For background information about points, see Questions About Points.

Points are traded off against the interest rate. For example, I took the following schedule for 30-year fixed-rate mortgages (FRMs) from a lender's price sheet on November 14, 2008.

 Interest Rate Points
 5.375%  2.83
 5.5  2.20
 5.625 1.72
 5.75  1.00
 5.875  0.37
6  0.00
 6.125  -0.42
 6.25  -0.60
 6.375  -0.76
6.625 -1.18


Paying points is an investment. The return is the lower payment and faster balance reduction that results from the lower rate. The return is higher the longer you have the mortgage.

Assume you were choosing from the schedule above and elected to pay 1 point to reduce the rate from 6% to 5.75%. If you have the mortgage 4 years or less, you earn nothing on your investment. Over 5 years, however, you earn 7.45% and over 10 years you earn 17.56%. I calculated these returns, as you can, using calculator 11c Mortgage Points Calculator: Rate of Return on FRMs. A companion calculator, 11d, Mortgage Points Calculator: Rate of Return on ARMs, does the same for ARMs.

Negative points are payments made by the lender to you for paying a higher rate. For example, the lender shown above will pay you 1.18 points for accepting a 6.625% rate rather than 6%. You can use the payments to defray settlement costs.

Where points that you pay yield a higher return the longer you have the mortgage, points that you receive cost you more the longer you have the mortgage. In the example above, you will be paying the lender 5% on the rebate for the 1.18 point rebate over 2 years, 27% over 3 years, and 42% over 10 years.

I have calculated returns from similar schedules covering a number of lenders and different types of mortgages. In general, paying points is a good investment if you hold the mortgage 4 years or longer, whereas negative points are very costly unless you are out within 2 years. Adjustable rate mortgages generally provide a higher rate of return on points than FRMs. See Is It True That Paying Mortgage Points Doesn't Pay?

I also found that differences between lenders are large. One lender offered better deals buying down the rate on a 15-year FRM than on a 30, while another lender offered a better deal on a 30. This is why it is a good idea to know exactly how many points you want to pay (or receive) before you shop for a mortgage.

Before you shop for a mortgage, decide what you want to do about points. If you want to pay points to reduce the rate, you shop rate based on a specified number of points. This has the added advantage of letting loan officers know that you know what you are doing.

If you want a rebate, the best strategy is to shop rate on a no-cost loan, which means a rebate high enough to cover all settlement costs except escrows and interim interest. This has the added advantage of protecting you against getting whacked with additional settlement costs at closing. See No-Cost Mortgages.

Selecting a loan provider while the rate/point combination is undecided is a bad mistake. Because of the wide variability in pricing points, the lender offering the lowest points at one rate is not necessarily the same as the lender offering the lowest points at a different rate.