Your lender just offered you a 6.75% rate on a $400,000 mortgage. Then they offered you 6.25% — but only if you paid an extra $8,000 at closing. That extra cost is called "buying points," and most homebuyers face this decision without ever running the math. The wrong call can cost you $5,000+ over the life of your loan. The right call can save you $20,000.
This guide walks through what mortgage points actually are, the simple break-even formula every buyer should run, and the specific situations where buying points pays off — versus when it's a waste of cash you could put to better use.
What Are Mortgage Points?
Mortgage points (also called "discount points") are a fee you pay upfront at closing in exchange for a permanently lower interest rate on your mortgage. One point equals 1% of your loan amount. On a $400,000 loan, one point costs $4,000.
Each point typically reduces your interest rate by 0.25 percentage points, though the exact amount varies by lender. So buying 2 points on that $400,000 loan would cost $8,000 upfront and might drop your rate from 6.75% to 6.25%.
This is a permanent change to your loan. The lower rate is locked in for the entire term — there's no expiration like with introductory rates or temporary buydowns.
The Two Types of Points (Don't Confuse Them)
Lenders use the word "points" in two completely different ways:
Discount points are what we're discussing — money you pay to lower your rate. These are tax-deductible as prepaid mortgage interest in many cases.
Origination points are a fee the lender charges to process your loan. These don't lower your rate; they're just a cost of doing business with that lender. Think of them like a commission. They're not tax-deductible.
When you see "points" on a loan estimate, always clarify which type. A loan with "2 points" could mean a great deal (discount) or an unnecessary fee (origination).
The Break-Even Formula
Whether buying points is worth it comes down to one question: how long will you keep the loan? The break-even point is where your monthly savings have added up to equal the upfront cost.
Break-even months = Cost of points ÷ Monthly savings
Here's the math on a $400,000 loan with one point ($4,000) buying down the rate from 6.75% to 6.5%:
| Without points | With 1 point | |
|---|---|---|
| Rate | 6.75% | 6.50% |
| Upfront cost | $0 | $4,000 |
| Monthly payment | $2,594 | $2,528 |
| Monthly savings | — | $66 |
Break-even = $4,000 ÷ $66 = 61 months (about 5 years)
If you keep the loan beyond 5 years, you start saving money. If you sell, refinance, or pay it off before then, you've lost money on the points.
Use our Mortgage Calculator to run break-even numbers on your own loan.
When Buying Points Makes Sense
1. You're staying put for 7+ years
If your break-even is 5 years and you live in the home for 10, you save monthly for 5 full years after recouping the upfront cost. On a $400,000 loan, that's typically $4,000–$10,000 in pure savings.
The longer you stay, the better the deal. On a 30-year fixed loan you keep for the full term, the lifetime savings from a single point can easily exceed $20,000.
2. You have cash beyond your down payment and emergency fund
This matters. If buying points means putting less down (raising your loan-to-value above 80% and triggering PMI), the math usually flips negative. The PMI cost wipes out your point savings.
Same goes for emergency fund. If buying points means closing without 3–6 months of expenses in savings, you're trading a future hypothetical saving for present financial fragility. Not a good trade.
3. Rates are likely to stay flat or rise
Points only pay off if you don't refinance. If rates drop 1% within 2 years and you refinance, the points you bought at the original closing are gone forever — you essentially spent $4,000 to lower a rate you no longer have.
If rates are already low and likely to rise (or stay flat), points are safer because the chance of refinancing soon is lower.
4. The seller is paying
Many buyers don't realise this: in a buyer-friendly market, sellers will often agree to pay points as part of closing costs. This is sometimes packaged as a "rate buydown." If the seller pays the $4,000, your break-even is immediate — you save money from month one.
If you're negotiating an offer and the seller is paying any closing costs, ask if they'll pay for points instead of just covering generic costs. Same dollar amount to the seller, but a permanent rate reduction for you.
When NOT to Buy Points
1. You might move within 5 years
Job, family, lifestyle changes — even the best-laid plans change. If there's a meaningful chance you'll sell or refinance within 5 years, points are usually a bad bet. The upfront cost won't pay back in time.
2. You'd be stretching your cash to afford them
If buying points means raiding your emergency fund or cutting your down payment below 20%, skip them. The PMI alone on a smaller down payment will likely cost more per month than the points save.
3. The break-even is over 7 years
A break-even of 5 years gives you reasonable safety. A break-even of 8 years is cutting it close — you need to be confident about your long-term housing plans. A break-even over 10 years is almost always a bad deal.
4. You're getting an ARM
Adjustable-rate mortgages reset their interest rate every few years. Buying points on an ARM only buys down the initial rate — once it adjusts, the points are essentially gone. Almost never worth it.
The Hidden Alternative: Pay More Down Instead
Most buyers comparing "buy points or not" miss the third option: take that $4,000 and put it toward your down payment instead.
Here's the comparison on a $400,000 home with $40,000 (10%) down vs $44,000 (11%) down, no points:
| Strategy | Down payment | Loan amount | Rate | Monthly P&I | Lifetime interest |
|---|---|---|---|---|---|
| Buy 1 point | $40,000 | $400,000 | 6.50% | $2,528 | $510,000 |
| Bigger down payment | $44,000 | $396,000 | 6.75% | $2,568 | $528,500 |
| Save the cash | $40,000 | $400,000 | 6.75% | $2,594 | $533,800 |
In this example, buying 1 point saves the most over the life of the loan ($23,800 vs the no-point baseline). But the bigger down payment is only slightly behind ($5,300 less savings) — and that money is liquid in the form of equity rather than locked into prepaid interest.
If your home appreciates, the equity option compounds. The points option doesn't. For someone planning to use a HELOC or cash-out refinance later, more equity is more valuable.
How to Negotiate Points Smartly
Three rules:
1. Always ask for the no-points quote alongside the with-points quote. Some lenders show you a tempting low rate that quietly includes paid points, making the loan look cheaper than it is. Get both numbers.
2. Compare lenders on the same point structure. A 6.5% rate with 1 point at one lender may be a worse deal than a 6.75% rate with no points at another. Don't compare rates; compare total cost over your expected loan tenure.
3. Ask about partial points. Some lenders sell points in fractional amounts (0.5, 0.75, etc.). The break-even math is the same, but the upfront cost is more manageable.
The Bottom Line
Mortgage points are a long-term bet on staying in your home and not refinancing. They work brilliantly when you stay put for 7+ years and rates remain stable. They're a waste when you might move soon, refinance soon, or stretch your savings to afford them.
The single most important number is your break-even: cost of points divided by monthly savings, expressed in months. If that number is well under your expected time in the home, points likely pay off. If it's close to or beyond it, skip them and put the cash toward a bigger down payment or your emergency fund.
The math doesn't care about lender pitches or rate hype. Run the numbers — including PMI, expected length of stay, and likelihood of refinancing — and the right answer becomes obvious.
→ Run your full mortgage with and without points in the Mortgage Calculator