Somewhere in your mortgage paperwork, a loan officer is going to ask if you want to "buy down" your rate. It sounds like a no-brainer — pay a little more up front, get a lower rate forever — but whether it's actually a good deal depends entirely on math most buyers never run: how long you'll keep the loan, and how many months it takes the lower payment to earn back what you spent.
Mortgage points are simply prepaid interest. One point typically costs 1% of your loan amount and typically knocks your rate down by roughly 0.25%, though the exact ratio varies by lender and market conditions. The idea is straightforward, but the decision of whether to buy points, put that same money toward a bigger down payment, or just keep it in savings is where most people get stuck.
On a $400,000 loan, one point costs $4,000. If that point drops your rate from 6.75% to 6.5%, your monthly payment falls by somewhere around $65, depending on the loan term. Divide the $4,000 cost by the $65 monthly savings, and you get a break-even point of about 61 months — a little over five years. If you keep the loan (meaning you don't sell the home or refinance) past that point, buying the rate down saved you money. If you move or refinance before then, you'd have been better off skipping the points.
This is the single most important number in the whole decision, and it's almost never mentioned unless you ask for it directly. Any loan officer can calculate your specific break-even period in a couple of minutes — request it in writing for every point option before you sign anything.
Putting that same $4,000 toward your down payment instead of points reduces your loan amount rather than your rate. A bigger down payment can also help you cross thresholds that matter — getting under 20% down often removes private mortgage insurance entirely, and PMI can cost far more per month than a quarter-point rate reduction would save. If you're close to that 20% line, extra cash almost always does more good eliminating PMI than buying points.
A bigger down payment also lowers your total loan balance immediately, which reduces the interest you pay over the life of the loan in a way that isn't tied to how long you keep the house. Unlike points, that benefit doesn't evaporate if you sell or refinance early — the smaller balance is baked in from day one.
Points tend to win when you're confident you'll be in the home well past the break-even period — for instance, buying a forever home rather than a starter property, or already at 20% down and simply deciding what to do with leftover cash. Points also make more sense in a higher-rate environment, since a quarter-point reduction on a 7% rate saves more in raw dollars than the same quarter-point reduction on a 4% rate.
Some lenders also offer temporary rate buydowns, where the rate is only reduced for the first one to three years of the loan before reverting to the standard rate. These can make sense if you expect your income to rise or plan to refinance once rates fall, but they're a different product from permanent points and deserve their own separate break-even math.
Priya and her partner Owen were buying a $450,000 home with 10% down, leaving them a $405,000 loan. Their lender quoted 6.875% with no points, or 6.625% for 1.5 points, which would cost them $6,075 upfront. The rate reduction lowered their monthly payment by about $92.
Running the math, $6,075 divided by $92 comes out to roughly 66 months to break even — five and a half years. Priya and Owen planned to stay in the home at least eight years while their kids were in the local school district, so they bought the points. Had they instead been buying a starter condo they expected to sell in three years, the same $6,075 would have been better spent as an extra chunk of down payment, or simply kept as a cash cushion for closing costs and moving expenses.
A common mistake is buying points without ever asking for the break-even number in writing, which means the buyer has no real way to judge whether the trade was worth it. Another is assuming points are refundable or transferable if you sell early — they're not; the money is gone the moment you close, regardless of what happens next. Buyers also sometimes drain their entire cash cushion to buy points, leaving nothing for moving costs, repairs, or an emergency fund, which is a much bigger financial risk than a slightly higher rate. It's also easy to confuse discount points, which lower your rate, with origination points, which are simply a lender fee and buy you nothing — always ask which type you're being quoted.
Start by asking your lender for a rate sheet showing the cost and payment impact of zero, one, and two points side by side. Calculate the break-even month for each option by dividing the upfront cost by the monthly savings. Compare that break-even period honestly against how long you actually expect to keep the loan — job changes, growing families, and relocations happen more often than buyers plan for. If you're near the 20% down payment threshold, price out removing PMI before you price out points, since PMI removal is often the bigger win. If you're weighing points against paying off other debt first, it's usually smarter to compare against your highest-interest balances, such as credit card debt, before locking cash into a mortgage rate buydown.
Mortgage points aren't automatically good or bad — they're a bet on how long you'll keep the loan. Run the break-even math with your actual numbers, compare it honestly to your expected timeline in the home, and don't let a smooth sales pitch skip the one calculation that actually determines whether points are worth it. If you're building savings toward a future down payment in the meantime, comparing options like CD ladders against high-yield savings can help that cash grow while you wait, and once you're settled, some buyers also explore house hacking to offset the payment further. For the down payment fund itself, a mix of loans knowledge and steady saving usually beats trying to time the rate market.
This article is for general informational purposes only and does not constitute financial, investment, or legal advice. Mortgage rates, point pricing, and loan terms vary by lender and change frequently — consult a licensed mortgage professional about your specific situation.
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