Mortgage points: how long must you keep the loan to recover the upfront cost?

What the upfront charge buys

In US mortgage terminology, discount points are an upfront charge exchanged for a lower interest rate. One point costs 1% of the loan amount; it does not promise a one-percentage-point rate reduction. The actual rate change comes from the lender’s specific quote. Lender credits usually move the tradeoff the other way: less paid at closing in exchange for a higher rate.

Keep this distinction separate from taxes, insurance and other closing expenses. Those charges can matter greatly to the cash you need, but they are not all payments for a rate reduction. Compare the extra cost attributable to the cheaper rate rather than treating the full closing bill as the price of points.

🧮 Try a simple payback calculation

Consider two hypothetical offers for the same loan amount, term and repayment structure. Offer B costs 3,000 currency units more upfront and reduces the monthly principal-and-interest payment by 75. Dividing 3,000 by 75 gives 40 months. This is a simple cash-flow payback estimate, not a quoted loan or a complete economic comparison.

After 24 months, the payment savings would total 1,800, leaving 1,200 of the extra upfront cost unrecovered under these assumptions. After 60 months, savings would total 4,500, or 1,500 more than the upfront charge. If the savings were only 50 per month, the simple payback would take 60 months instead. The result is sensitive to the actual quote.

Use the life of the loan, not only the home

You may stay in a home for ten years but replace its mortgage after three. Selling, refinancing or paying off the loan can end the payment stream used in the estimate. Future refinancing is uncertain, so compare a shorter and longer holding period rather than assuming a rate cut will arrive on schedule.

The lower monthly number is appealing when the budget already feels tight. Our editorial concern is that paying extra today can weaken the cash reserve needed for repairs or an income interruption. Set that liquidity question beside the payback result. A mathematically favorable long stay does not prove that the upfront payment fits your household.

What the quick estimate leaves out

A full comparison can include different remaining loan balances, the timing and value of money, tax treatment, financed fees and changes in payments. If fees are added to the balance, they may themselves accrue interest. When comparing options at an early payoff date, ask for the projected outstanding balance as well as cumulative payments.

Use comparable written offers: the same loan amount, term, rate type and assumptions. Check whether a rate is locked, when the quote expires, and which costs actually differ. The CFPB Loan Estimate guidance is specific to US disclosures; elsewhere, request the equivalent itemized documents rather than assuming the same form or terminology applies.

Request the comparison that matches your likely exit

Ask for a written comparison with and without the extra points. Record the upfront difference, monthly principal-and-interest difference and estimated balance at your likely payoff date. Then test a shorter holding period. If the apparent benefit vanishes under that realistic alternative, the lower advertised rate deserves another look.