ToolGrym field guide
When Paying Mortgage Points Makes Sense
Mortgage points exchange cash at closing for a lower rate. They help only if the payment savings recover the upfront cost before the mortgage ends.
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- Plain-English explainer
- Practice
- 4 linked calculators
Written by the ToolGrym Editorial Team
Last reviewed:
Start with paired written offers
One point costs 1% of the mortgage amount, but it does not always reduce the rate by the same amount. Ask a lender for otherwise comparable options with zero points and with points. Match loan type, term, lock period, amount, and other fees.
Enter those rates in the mortgage points calculator. Do not assume that one point always buys 0.25 percentage point.
Break-even measures time
Simple break-even divides point cost by monthly principal-and-interest savings. If one point costs $3,000 and saves $45 per month, break-even is about 67 months.
Compare that date with when you might sell, refinance, pay off, or otherwise replace the loan. Use a short, likely, and long timeframe. A thirty-year term does not mean the household will keep that exact mortgage for thirty years.
Cash reserves matter
Points can be mathematically profitable over a long stay while still being a poor cash-flow decision. Closing already requires down payment, lender charges, prepaid items, moving, and reserves. Do not weaken an emergency fund merely to improve a projected long-run total.
Cash also has opportunity cost. The simple break-even method does not credit what point money might earn elsewhere.
Distinguish points from other charges
The word “point” can be used loosely. CFPB guidance explains that discount points connected to a lower rate should appear on the Loan Estimate and Closing Disclosure. Origination charges may also be percentage-based without buying down the rate.
Lender credits reverse the exchange: the borrower accepts a higher rate for help with closing costs. Compare total cost over the expected horizon.
Refinance risk changes the answer
If rates later fall enough to justify refinancing, the original point cost is sunk. A borrower expecting a near-term move or refinance has less time to recover it. A borrower with strong cash reserves and a high probability of keeping the mortgage beyond break-even has the clearest case.
Use the refinance calculator for an existing loan and compare amortization balances when the decision is close.
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The ToolGrym editorial team builds and maintains every calculator on this site. Each tool’s formulas are implemented as tested code and verified against authoritative sources such as the CFPB, Federal Reserve, IRS, and BLS.