Mortgage points are worth it if you keep the loan long enough for the monthly savings to repay what you spent upfront, and not worth it if you sell or refinance first. That's the whole question, reduced to one comparison: cost of the points against how many months of lower payments you'll collect. Everything else, the "buy 2 points" line on a rate sheet, the $18,000 buydown offer that feels either brilliant or reckless, comes down to that same arithmetic. Here's how to run it for yourself.
What is a mortgage discount point?
A discount point is money you pay your lender at closing in exchange for a permanently lower interest rate on that loan. One point equals 1% of your loan amount: on a $500,000 loan, one point costs $5,000. The Consumer Financial Protection Bureau describes it plainly: points "lower your interest rate, in exchange for paying more at closing."
Here's the part most explainers skip: there's no fixed exchange rate between points and rate reduction. You'll often hear "a quarter point per point" as a rule of thumb, but the CFPB is explicit that this varies. "The amount that your interest rate is reduced depends on the specific lender, the kind of loan, and the overall mortgage market," and the reduction per point paid can run larger or smaller depending on the day. Treat any "0.25% per point" number you see, including the illustrative one below, as a rough guide, not a guarantee. Your loan estimate will show the real number for your quote.
Is buying down the rate worth it? The break-even math
This is the only question that matters, and it has a simple formula: cost of points ÷ monthly payment savings = months to break even.
Say a borrower is financing $600,000 on a 30-year fixed loan. Buying 3 points costs $18,000 (3% of $600,000), which is a real number worth running the math on before reacting to the sticker shock. These figures, including the rates below, are an illustrative example, not an offer or a rate/APR quote; run your own loan amount through the same math, or use our mortgage calculators to plug in your numbers directly.
| No points | 3 points ($18,000) | |
|---|---|---|
| Monthly principal & interest | $4,093 | $3,792 |
| Monthly savings | — | $301 |
| Break-even | — | ~60 months (about 5 years) |
Once the math is run, the decision becomes a single question: how long do you expect to keep this loan? The table below shows the net outcome (interest saved minus the $18,000 cost) at four different hold times.
| You keep the loan… | Net result vs. not buying points |
|---|---|
| 3 years | -$4,440 (points cost more than they saved) |
| 5 years | +$4,646 (roughly break-even, slightly ahead) |
| 10 years | +$27,283 |
| Full 30 years | +$90,234 |
Sell or refinance at year three, and the points were a $4,440 mistake, no matter how good the lower payment felt each month. Keep the loan a decade, and the same $18,000 turns into a $27,000 gain. That's the entire "are points worth it" question, reduced to a single number: will you be in this loan past your break-even month.
The CFPB's own guidance recommends running this exact comparison across three timeframes: the shortest amount of time you might keep the loan, the longest, and the most likely. If the shortest realistic scenario still comes out ahead, points are a clean win. If only the longest scenario works, you're betting on staying put.
Worth knowing: homeowners who sold in early 2026 had owned their homes an average of 8.44 years, according to ATTOM Data Solutions. That's a national average, not a prediction about you, but it's a useful gut-check: a break-even period around 5 years sits comfortably inside how long the typical owner stays, while a break-even of 10+ years is betting against that average.
Discount points vs. a temporary buydown: know which one you're being offered
"Buy down the rate" gets used loosely, and the $18,000 sitting on a builder's offer sheet is often not a discount point purchase. It's frequently a temporary buydown, and the two are not the same trade.
A discount point permanently lowers your note rate for the life of the loan, paid once at closing. A temporary buydown, structured as a 2-1 or 3-2-1, instead subsidizes a lower PAYMENT for the first one to three years, then steps back up to your full note rate. The U.S. Department of Veterans Affairs describes the mechanics clearly: funds go into an escrow account, and the borrower's payment increases each year until, at the end of the buydown period, they "would begin making mortgage payments at the note rate." Your interest rate on the note doesn't change; the money just cushions your early payments. The VA also notes the buydown "can be funded by the seller, lender, builder, or Veteran," which is exactly the scenario a lot of "$18k to buy down the rate" posts online are describing.
Before running any break-even math, confirm which one you've been offered. If it's a temporary buydown, the break-even question above doesn't apply the same way, because your rate isn't changing.
Should I pay for a builder-paid rate buydown?
If a builder or seller is the one funding the buydown, the calculus flips. You're not the one recouping the $18,000, so the traditional break-even question is close to moot from a cash standpoint: a subsidized payment for a few years, or a permanently lower rate if that's what's being offered, at no direct cost to you is hard to turn down on its own.
The nuance, and this is judgment based on how these deals typically work, not a universal rule: seller and builder concessions are frequently baked into the purchase price. It's worth asking whether a lower price with no buydown beats the sticker price with the buydown attached, especially if you plan to sell before a temporary buydown's discount period even ends. Ask your lender to show you both structures side by side rather than assuming the buydown offer is automatically the better deal, and get specifics in writing rather than taking a builder's sales sheet at face value.
Are mortgage points tax deductible?
Sometimes, and the rules differ by whether you're buying or refinancing. Under IRS guidance, points paid on a mortgage to buy, build, or improve your principal residence may be deductible in the year you pay them, if you itemize and meet a set of conditions: you provided the funds for the points yourself (not borrowed from the lender), the residence secures the loan, paying points is standard practice in your area, the points don't exceed the local going rate, and the amount is clearly itemized as points on your settlement statement.
Refinance points work differently: the IRS specifies that points paid to refinance are deducted ratably over the term of the loan, not all at once. That's a meaningfully slower tax benefit, and it changes the true after-tax break-even math on a refinance buydown versus a purchase buydown. This is informational, not tax advice; confirm your specific situation with a tax professional before assuming a deduction applies to you.
When points are a trap, and when they're the smart move
Points are a trap when: - You expect to sell or refinance before your break-even month, the single most common mistake. - You're short on cash for the down payment, closing costs, or reserves; tying up money to lower a payment you can already afford isn't the priority. - You're comparing a single lender's point pricing without asking what a no-point rate looks like elsewhere, or without asking whether a straight refinance down the road might beat paying to buy the rate down now.
Points make sense when: - You've run the break-even math against your realistic hold time, not your hoped-for hold time, and the shortest reasonable scenario still comes out ahead. - You have the cash available without touching your emergency reserve. - You're buying, not refinancing, and expect to itemize, which can pull the break-even in your favor through the year-one deduction.
This is the 1/8%-rate trap in reverse. Borrowers chase a lower rate number without pricing what it costs to get there; the fix runs the same either direction: run the math before the rate number decides anything for you.
Quick answers
How much does one mortgage point cost? 1% of your loan amount. On a $400,000 loan, one point costs $4,000. The rate reduction you get for that point varies by lender and market; ask for the specific number on your loan estimate rather than assuming a standard rate.
How long until mortgage points pay for themselves? Divide what you paid for the points by your monthly payment savings. In the example above, $18,000 in points saving $301 a month breaks even around the 5-year mark. Run your own numbers with your actual quote.
Is buying down the rate worth it if I might refinance soon? Usually not. If you expect to refinance or sell before your break-even month, the points cost more than they save. Refinancing especially resets the equation, since a new loan means new points math from scratch.
Are mortgage points and a temporary buydown the same thing? No. Discount points permanently lower your rate for the life of the loan. A temporary buydown (2-1, 3-2-1) subsidizes a lower payment for one to three years before returning to your full note rate. Confirm which one you've been offered before running any break-even math.
Talk to Randy
Math is what I do. Send me the points quote you're looking at, along with your loan amount and how long you expect to keep the loan, and I'll run your actual break-even numbers with you, no-obligation, before you commit either way. Call or text (949) 990-6030, or schedule a call.
Disclosures: Randy Mathis, NMLS #1516760 | DRE #02236644. Lumin Lending, Inc., NMLS #2716106 | DRE #02291443. Equal Housing Opportunity. Licensed in AL, AZ, CA, CO, ID, MD, MI, OR, PA, TN, TX, UT, WA. This is not a commitment to lend or a rate/APR quote. The figures above are illustrative examples showing how paying discount points affects monthly payment and total interest on a hypothetical loan; they do not represent an offer of credit, and your rate, APR, and payment will depend on your situation and qualification. Tax information is general and not tax advice; consult a tax professional about your specific situation. All loans subject to credit approval, income and property qualification, and program terms. Sources: Consumer Financial Protection Bureau, "How should I use lender credits and points (also called discount points)?"; U.S. Department of Veterans Affairs, "Temporary Interest Rate Buydowns"; IRS Topic no. 504, "Home Mortgage Points"; ATTOM Data Solutions, "U.S. Homeownership Tenure by State — Q1 2026." Information current as of July 24, 2026.
