Walk into any mortgage closing and someone will slide a sheet across the table showing two columns.
One has a lower rate with a hefty upfront fee.
The other has a higher rate and nothing due at signing.
Pick one, they say, like it's a coin flip.
It isn't, and the math is stacked in a way that rarely gets explained out loud.
Mortgage points, sometimes called discount points, are prepaid interest.
One point costs 1% of your loan amount and typically shaves somewhere between 0.25% and 0.5% off your rate.
On a $400,000 loan, one point runs you $4,000 up front.
The selling pitch is simple: pay now, save later.
The break-even point is the number that actually matters, and it's easy to calculate once you know your numbers.
Divide the cost of the points by your monthly savings.
If $4,000 in points saves you $60 a month, you need about 67 months, or five and a half years, just to get your money back.
Before that point, you're underwater on the deal.
The average American homeowner moves or refinances well before that break-even window closes.
Life happens: job relocations, growing families, divorces, better rates that make a refi tempting.
Every time you sell or refinance early, those prepaid points evaporate.
You paid real money for a benefit you never collected.
Points are pure profit if you don't stick around long enough to benefit, and they don't exactly send a reminder card at year three.
That's not a conspiracy, just an incentive worth noticing.
The person recommending points isn't the person absorbing the risk if you move.
Then there's the opportunity cost nobody puts on the disclosure form.
That $4,000 could sit in a high-yield savings account earning 4% or more, pay down credit card debt charging 20%+, or cover an emergency fund that keeps you from swiping a card when the water heater dies.
Comparing points to "nothing" is the wrong comparison.
It's points versus whatever else that cash could do.
Points can still make sense in specific situations.
If you're certain you'll stay in the home for a decade, have a fully funded emergency fund, no high-interest debt, and plan to keep the loan until payoff, buying down the rate is a reasonable move.
Certainty is doing a lot of work in that sentence, though.
Most people don't have it, even when they think they do.
There's also a tax angle that gets oversold.
Points on a purchase mortgage are generally deductible in the year paid, but only if you itemize, and most filers take the standard deduction.
Check with a tax professional before counting on a break that may not apply to you.
The no-points route keeps your cash flexible.
A slightly higher rate costs more monthly, but you keep the money, and you can always refinance later if rates drop without having wasted thousands on a buy-down that never paid off.
Flexibility has value that doesn't show up on a rate sheet.
So when that two-column sheet lands in front of you, ask one question: how long until I break even, and how confident am I that I'll still be here?
The bottom line: points are a bet on your own future, placed with a lender who wins either way.
Final Thoughts
Run the break-even math yourself, be honest about how long you'll stay, and remember that the lowest rate isn't the same thing as the best deal.