Mortgage points are one of the few home-buying decisions where the right answer is pure arithmetic, yet lenders rarely spell it out.
You can pay extra upfront to lower your rate, or keep that cash and take the higher rate.
The gap between those two paths is where real money hides.
One point costs 1% of your loan amount and typically shaves about 0.25% off your interest rate.
On a $400,000 mortgage, that's $4,000 upfront to drop from, say, 6.75% to 6.50%.
Here's the number that matters: your break-even point.
Divide the upfront cost by the monthly savings.
In this case, $4,000 divided by $63 lands at about 63 months, or a little over five years.
Stay in the home longer than that and buying points puts you ahead.
Sell or refinance before then and you handed the lender free money.
A 2021-style refi boom could return, or you could get a job offer across the country in year three.
Paying points is essentially a bet that you'll keep this exact loan for a specific stretch of time — a bet plenty of homeowners lose.
There's also the tax angle, which surprises people.
Points paid on a purchase mortgage are generally deductible in the year you pay them, while points on a refinance usually must be deducted over the loan's life.
That softens the upfront sting a bit, but it doesn't change the break-even math, and it only helps if you itemize.
When you're certain you're staying put, you have cash beyond your down payment and emergency fund, and you're not chasing a lower rate by draining savings.
A 15- or 30-year fixed loan on a forever home fits that profile.
Paying points with your last available dollars does not.
The flip side — taking the higher rate and no points — keeps cash in your pocket for moving costs, repairs, and the surprise expenses that always show up in the first year of ownership.
That flexibility has real value, even if it doesn't show up on a rate sheet.
One more move worth knowing: ask your lender for a side-by-side loan estimate showing both scenarios at your actual loan amount.
The federal Loan Estimate form makes this comparison straightforward, and any lender who dodges the request is telling you something.
The bottom line is that points aren't a scam or a secret hack — they're prepaid interest with a deadline attached.
Final Thoughts
Do the division, pick your honest timeline, and let the math decide instead of the sales pitch.