Mortgage Discount Points Break-Even Calculator
Should you buy discount points to lower your mortgage rate? See the upfront cost, monthly savings, and the month you break even.
You save $133/mo — worth it if you keep the loan past month 61 (5.1 years).
| Cost of points | $8,000 |
| Payment without points | $2,661.21 |
| Payment with points | $2,528.27 |
| Monthly savings | $132.94 |
| Lifetime savings (full term) | $39,857.64 |
Assumes you keep the loan and its rate for the full term. If you sell or refinance before the break-even month, buying points loses money. The upfront cost also can't be invested elsewhere — a factor for shorter stays. Not advice.
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How this calculator works
Who this is for
Homebuyers and refinancers deciding whether to pay for discount points at closing. Points lower your interest rate — but only pay off if you keep the loan long enough to recoup the upfront cost.
How points and break-even work
One discount point costs 1% of your loan amount and typically lowers your rate by roughly a quarter percent (lenders vary). That lower rate cuts your monthly payment. Divide the points' upfront cost by the monthly savings and you get the break-even month.
Before the break-even point, you're behind — you spent more up front than you've saved. After it, every month is pure savings. So the decision hinges on whether you'll keep this loan, at this rate, past break-even.
When points make sense
Points favor buyers who'll stay put and keep the same loan for many years — long past the break-even month. They're a poor bet if you expect to sell or refinance soon, or if you could put that cash toward a larger down payment or higher-return investment.
Caveats
The exact rate reduction per point varies by lender and market, so enter the actual quoted rate with points. This assumes a fixed rate held to term and ignores the opportunity cost of the upfront cash. Discount points may be tax-deductible in some cases — check with a tax professional.
Frequently asked questions
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This site is for educational purposes only and does not constitute financial advice.