Mortgage lenders love to talk about "buying down your rate," but the math behind discount points is where a lot of borrowers quietly lose money.
A point costs 1% of your loan amount and typically shaves a small amount off your interest rate.
On a $400,000 loan, one point runs $4,000 upfront.
The pitch sounds simple: pay more now, pay less later.
The catch is that you have to stay in the home long enough to break even, and the break-even point is often further out than buyers expect.
Say a lender offers 6.5% with no points or 6.25% with one point on that $400,000 loan.
The lower rate saves roughly $60 a month.
Dividing your $4,000 cost by $60 puts your break-even at about 67 months, or nearly six years.
Sell or refinance before then and you're out the difference.
That timeline matters more than ever right now.
With rates still elevated and home prices high, many buyers expect to refinance within a few years if borrowing costs ease.
Paying thousands upfront for a rate you plan to replace is a bet that can backfire.
That $4,000 could go toward closing costs, an emergency fund, or knocking down a higher-interest debt.
Money parked in points is gone the moment you close.
Points aren't automatically a bad deal, though.
If you're putting down roots for the long haul and plan to keep the loan for a decade or more, a permanent rate reduction can add up.
Some buyers also use seller credits to cover points, which changes the math entirely since it isn't their cash.
Ask your lender for a side-by-side Loan Estimate showing both scenarios, and confirm whether the points are tax-deductible for your situation.
Watch for "origination points" that are really just lender fees dressed up with a friendlier name.
Then run your own break-even number instead of trusting a sales pitch.
Divide the total cost of the points by the monthly savings.
If that answer is longer than you realistically expect to keep the loan, skip the points and keep your cash.
One more angle: a slightly higher rate with no points can make sense if it keeps your savings intact for repairs, moving costs, or a layoff buffer.
Liquidity has real value, even when it doesn't show up on a rate sheet.
The bottom line is that points are a math problem, not a loyalty test.
Run the break-even, be honest about your timeline, and don't let anyone rush you into paying for a discount you may never live long enough to enjoy.
Final Thoughts
The best mortgage is the one that fits your actual plans, not the one with the prettiest rate.