Discount points are the most beneficial mortgage points to the buyer. If you have a substantial amount of cash on hand up front, but do not have the credit to get the interest rate you want, paying for points may be the best way to go. A discount point represents 1% of the overall loan amount, and for each point you pay, the lender will reduce your interest rate by 1/4 of a percent. Most lenders will let you buy 3 or 4 discount points, reducing your interest rate by no more than 1%. For example, if your loan amount is for $300,000, each point will cost $3,000. Paying four points will cost you $12,000. If your interest rate was 6%, your monthly payment would be $1798.65. After the buy down, your interest rate is 5%, which makes your payment $1610.46, saving you $188.19 per month. At this rate, it would take nearly 64 months, or slightly longer than 5 years to make the $12,000 buy down back. If you do not think you will be in the house at least that long, don't pay for the points up front. These points are tax deductible.