Somewhere in your loan estimate there's a line offering to sell you a lower interest rate. Pay a bit more today, the offer goes, and pay less every month for the next thirty years.
It sounds like an obvious win, and it's sold that way. It is sometimes an obvious win. It is also, for a large share of borrowers, a straightforward loss — and which one it is comes down to a single number you can calculate in about a minute.
That number is your break-even month: how long you have to keep the loan before the monthly savings repay what you spent up front. Past it, points are pure profit. Short of it, you've simply given a lender money.
A note before you start: this is general education, not personalized financial advice. Examples use a $320,000 loan at 6.65% over 30 years — the Freddie Mac Primary Mortgage Market Survey average for the week of August 20, 2026 — and the standard industry convention that one point buys about 0.25% of rate. Real offers vary; your lender's actual rate sheet is what matters. Nothing here is a quote.
1. What a point actually is
A discount point (sometimes just "point") costs 1% of your loan amount and buys a permanent reduction in your interest rate.
On a $320,000 loan, one point is $3,200, paid at closing.
What it buys is less standardized than what it costs. The common rule of thumb — and the default our calculator uses — is that one point lowers your rate by about 0.25%. But this is genuinely a convention, not a law: some lenders offer more rate per point, some less, and the amount often varies with market conditions and your credit profile. Half-points and quarter-points are usually available too, and some lenders price them non-linearly, so the second point may buy less rate than the first.
Always read the actual rate sheet rather than assuming 0.25%. The whole calculation below depends on that number, and it's the one input a lender controls.
Two things points are commonly confused with:
- Origination points are a fee for making the loan. They cost the same 1% and buy you nothing. Different line item, different purpose — don't let the shared vocabulary confuse them.
- Lender credits are points in reverse: the lender pays some of your closing costs in exchange for a higher rate. See section 6.
Points are treated as prepaid interest, which is why they're often (though not always) tax-deductible on a primary residence — worth confirming with a tax professional for your situation rather than assuming.
2. The break-even calculation
The math has three steps.
Step one: what does it cost? One point on $320,000 = $3,200.
Step two: what does it save each month?
| Without points | With 1 point | |
|---|---|---|
| Rate | 6.65% | 6.40% |
| Monthly principal & interest | $2,054.29 | $2,001.62 |
Monthly savings: $52.67.
Step three: divide.
$3,200 ÷ $52.67 = 60.76 months — about 5 years and 1 month.
Run the break-even on your own lender's point offerThat's the whole calculation. Keep this loan longer than 61 months and the point was worth buying. Sell, refinance, or pay it off sooner and you lost money.
Notice how modest the monthly savings are relative to the upfront cost. A quarter point of rate on a $320,000 loan is worth about $53 a month — meaningful over decades, unremarkable month to month. This asymmetry is why the break-even lands so far out and why the decision hinges almost entirely on your time horizon.
3. What happens if you do keep the loan
The case for points gets much stronger the longer you look:
| Without points | With 1 point | |
|---|---|---|
| Rate | 6.65% | 6.40% |
| Monthly P&I | $2,054.29 | $2,001.62 |
| Total interest over 30 years | $419,543.56 | $400,582.65 |
Total interest saved: $18,960.91. Net of the $3,200 spent: $15,760.91.
That's a real return on $3,200 — but it's a return that requires holding the exact same loan for three decades. Every year you fall short of that, the payoff shrinks; before month 61, it's negative.
Our points calculator returns a verdict alongside the numbers, and for this particular scenario it says:
Not worth it — break-even is 5 years, 1 month, longer than most homeowners hold a loan before moving or refinancing again.
That verdict is a judgment about typical behavior, not a mathematical fact. American homeowners have historically moved or refinanced well inside five years on average. If you're genuinely certain you're in this house and this loan for the long term, the same numbers point the other way — which is exactly why the calculator shows you both the break-even and the lifetime figures rather than just a yes or no.
4. Does buying more points help?
A reasonable instinct: if one point takes 61 months to pay back, maybe two points are more efficient.
They aren't. Here's the same loan with two points:
| No points | 1 point | 2 points | |
|---|---|---|---|
| Cost | $0 | $3,200 | $6,400 |
| Rate | 6.65% | 6.40% | 6.15% |
| Monthly P&I | $2,054.29 | $2,001.62 | $1,949.53 |
| Monthly savings | — | $52.67 | $104.76 |
| Break-even | — | 60.76 mo | 61.09 mo |
| Net lifetime savings | — | $15,760.91 | $31,312.63 |
The break-even barely moves — 61 months either way — because cost and savings scale together. Doubling your spend doubles your monthly savings, leaving the payback period essentially unchanged.
The practical implication is clean: points are close to a linear decision. There's no volume discount and no efficiency to find by buying more. If the break-even works for one point, it works for two; if it doesn't, buying more just puts more money at risk. The only variable that matters is how long you hold the loan.
(One caveat: because some lenders price points non-linearly, your actual second point may buy less rate than your first. That would make the second point's break-even worse, never better.)
5. The questions that actually decide it
Break-even is the math. These are the judgment calls around it.
How long will you really keep this loan? Not how long you plan to own the house — how long you'll keep this loan. A refinance ends it just as decisively as a sale. Job changes, growing families, and rate drops all shorten the answer, and most people overestimate it.
Where do rates look like they're going? This one cuts against points in an underappreciated way. If rates fall meaningfully, you'll want to refinance — and refinancing terminates the loan you bought points on, wasting the remaining value. Buying points is a bet that you'll keep a loan at today's rate, which is a bet against rates falling. In a falling-rate environment, points are worse than the break-even math alone suggests.
What else could the cash do? $3,200 toward points versus $3,200 of extra down payment aren't equivalent. Extra down payment reduces your loan, may help you clear the 20% PMI threshold (see our PMI guide), and stays yours as equity — you get it back when you sell. Points are spent. If you're anywhere near the 20% line, putting the money toward the down payment is frequently the stronger move.
Do you have the cash at all? Points are due at closing, alongside your down payment and closing costs. Draining your reserve to buy a lower rate is rarely wise — a cash cushion after closing matters more than $53 a month.
Are you sure the rate reduction is real? Compare the offer against the same lender's zero-point rate, and against other lenders entirely. A "discounted" rate that's still above what a competitor offers with no points isn't a discount.
6. Lender credits: the same trade, reversed
The mirror image of buying points is taking a lender credit — accepting a higher rate in exchange for the lender covering part of your closing costs.
The math works identically, just inverted. You get cash now and pay more monthly, so you're calculating how long before the higher payments exceed the credit you received. Short of that point, the credit wins.
Lender credits often make sense when:
- You're short on closing cash — the most common and most legitimate reason.
- You expect to move or refinance within a few years, making the higher rate temporary.
- You'd rather keep your reserve intact than optimize a rate you may not hold long.
They make less sense if you're confident you'll hold the loan for a long time — the same logic that favors points then works against credits.
The useful reframe: a rate is not a fixed feature of a loan. It's a dial you and the lender can move in either direction by exchanging cash today for cash later. Points and credits are the same trade, and which way you should turn the dial depends almost entirely on your time horizon and your cash position.
7. Comparing offers that price points differently
The hardest part of shopping lenders isn't finding the lowest rate — it's that quotes arrive in incompatible formats. One lender shows 6.65% with no points; another shows 6.40% with one point; a third shows 6.75% with a $2,000 lender credit. These are not directly comparable, and picking the lowest headline rate will frequently pick the most expensive loan.
Three ways to make them comparable:
Ask every lender for the same structure. The cleanest approach: request a zero-point quote from each. Now the rates are directly comparable, and you can layer the points decision on afterward with the lender you choose. Most will provide this if asked plainly.
Use APR, carefully. Annual percentage rate folds points and most lender fees into a single rate-like number, which is exactly the problem it was designed to solve. Its weakness is that it assumes you hold the loan for the full term — the same assumption that makes points look better than they usually are. APR is a reasonable tiebreaker between similar offers and a poor guide if you expect to move in five years.
Compare total cost over your actual horizon. The most accurate method. Take each offer, compute the monthly payment and the upfront cost, and total them over the number of months you realistically expect to keep the loan:
total cost = (monthly payment × months you'll keep it) + upfront points and fees
Run each competing offer through that and the ranking often reverses against what the rate sheet implies. A quote with a point looks best at 120 months and worst at 36.
One more comparison trap: the Loan Estimate's "Points" line is not the same as its "Origination Charges" line. Discount points buy your rate down; origination charges are the lender's fee for making the loan. Both are cash at closing, but only one purchases anything. When comparing offers, check both separately — a lender advertising "no points" while charging a high origination fee hasn't saved you money.
8. Points on a refinance work differently
Everything above assumes a purchase. On a refinance, two things change the math.
Your horizon is usually shorter. You're not starting a 30-year relationship with a house; you're starting one with a loan you may replace again if rates move. Since the break-even in our example was already about 61 months, and refinance borrowers are by definition people who have refinanced, the odds of holding long enough are worse than for a purchase.
The tax treatment changes. Points on a purchase of a primary residence may be deductible in the year paid, if conditions are met. Points on a refinance generally must be deducted gradually over the life of the loan instead — and if you refinance again before it's paid off, the remaining undeducted balance may become deductible at that point. This is genuinely intricate; talk to a tax professional rather than assuming either treatment.
The combined effect is that points are a harder sell on a refinance than on a purchase. They can still make sense — particularly for someone consolidating into a long-term loan they intend to keep to payoff — but the default answer leans further toward "no."
9. Five mistakes to avoid
- Assuming one point always buys 0.25%. It's a convention, and it's the input that drives everything. Get the actual number from the rate sheet.
- Confusing discount points with origination points. One buys a lower rate; the other is a fee that buys nothing. They look the same on a cost worksheet.
- Comparing rates without normalizing for points. A 6.40% quote with a point and a 6.65% quote with none are the same lender being consistent, not one being better. Compare at equal points, or compare APRs, which fold points in.
- Buying points with money you needed for reserves. The lower payment doesn't help if a broken furnace in month four goes on a credit card.
- Buying points when a refinance is likely. If you expect to refinance within a few years, you're paying up front for a rate you won't keep.
10. Temporary buydowns are a different product
Increasingly common in slower markets, and frequently confused with discount points because both lower your rate.
A temporary buydown — usually a "2-1" or "3-2-1" — reduces your rate for the first year or two, then steps up to the note rate. A 2-1 buydown on a 6.65% loan means roughly 4.65% in year one, 5.65% in year two, and 6.65% from year three onward.
Three differences from discount points that matter:
It's temporary. Points buy a permanent reduction. A buydown expires, and your payment rises on schedule.
Someone else usually pays for it. Buydowns are typically funded by the seller or a builder as a concession. The money goes into an escrow account that subsidises your payment for the buydown period. If a seller is offering one, it's genuinely free money to you.
You must qualify at the full note rate. Lenders underwrite at 6.65%, not the discounted rate. That's an important protection — but it also means the buydown doesn't help you afford more house, only to pay less in the early years.
When a buydown is good: a seller is funding it, and you'd have bought the house anyway. Take the concession.
When it's a warning sign: you need the reduced payment to make the early years work. Your payment will rise, and planning on refinancing before it does is the same fragile assumption our ARM guide cautions against.
One genuinely useful nuance: if the loan is paid off or refinanced early, unused buydown funds are typically credited back — usually to the loan balance. So a seller-funded buydown rarely goes to waste even if your plans change.
If you're offered a choice between a seller-funded buydown and an equivalent price reduction, run both. A price cut lowers your loan permanently and reduces your down payment; a buydown gives larger savings up front. Which wins depends on how long you'll keep the loan — the same question that decides points.
Frequently asked questions
What is a mortgage point? A discount point costs 1% of your loan amount and permanently lowers your interest rate, conventionally by about 0.25%. On a $320,000 loan, one point is $3,200.
How do I calculate my break-even on points? Divide the cost of the points by the monthly payment savings. $3,200 ÷ $52.67 = about 61 months. If you'll keep the loan longer than that, points pay off.
Are mortgage points worth it? Only if you keep the loan past break-even — typically around five years at current rates. Since most homeowners move or refinance sooner, points often don't pay off, which is why our calculator flags the standard one-point trade as not worth it by default.
Are points tax-deductible? Points on a primary residence are often deductible as prepaid interest, sometimes in the year paid and sometimes amortized over the loan. The rules have conditions. Confirm with a tax professional rather than assuming.
Is it better to buy points or make a bigger down payment? Frequently the down payment, especially if it brings you to 20% and eliminates PMI. Down payment money becomes equity you keep; points are spent permanently.
Do points make sense if I might refinance? Generally no. Refinancing ends the loan you bought the points on, so any value you haven't yet recovered is lost. Buying points is effectively a bet that you'll keep this rate.
What's a negative point? Another name for a lender credit — the lender gives you money toward closing costs in exchange for a higher rate. The break-even math works the same way in reverse.
What to do next
Points are a rare mortgage decision that resolves cleanly with one calculation. Our mortgage points calculator takes your loan amount, base rate, the rate reduction your lender is actually offering, and the number of points, and returns your break-even month, lifetime interest savings, and a plain-language verdict.
From there:
- Payment calculator — see what each candidate rate does to your full monthly payment.
- Your monthly mortgage payment, explained — including a table of exactly what each half-point of rate is worth.
- What is PMI and how do you remove it? — worth reading before spending cash on points instead of your down payment.
- Is refinancing worth it? — the same break-even logic, applied to refinancing.
See our methodology page for how every figure on this site is sourced.
This article is general education about mortgage discount points, not financial, legal, or tax advice. Dollar figures were computed with CalculatorByState's own calculation engine using a $320,000 loan, the Freddie Mac PMMS 30-year rate for the week of August 20, 2026, and the conventional 0.25%-per-point rate reduction. Actual point pricing and rate reductions are set by your lender and vary. For a real offer, request a loan estimate.