By David Park | Former Mortgage Loan Officer, 12 Years

A borrower once came to me excited that his lender had offered to drop his rate by a full percentage point. He was ready to sign. What he had not read carefully was the cost: two discount points on a $400,000 loan, which meant $8,000 paid at closing. He planned to sell in four years. I ran the numbers for him. He would have lost roughly $3,200 on that deal.

Discount points are one of the oldest sales tactics in mortgage lending, and they are not inherently bad. Sometimes buying your rate down is genuinely the smartest financial move you can make. But most borrowers have no framework for deciding when that is true. After 12 years in the business, I can tell you that the math is straightforward once you understand what you are actually buying.

This guide covers everything you need to know: the difference between discount points and origination points, how temporary buydowns work, break-even calculations with real numbers, and the specific conditions under which paying points makes sense versus when it costs you money.

Discount Points vs. Origination Points: Two Very Different Things

Before we get into the math, let us clear up a confusion that lenders sometimes exploit intentionally.

Discount points are prepaid interest. You pay cash at closing to permanently reduce your interest rate. One discount point costs 1% of the loan amount and typically reduces your rate by approximately 0.25%, though this varies by lender pricing, market conditions, and loan type. The rate reduction per point is never fixed - it depends on what the lender’s pricing sheet shows on that specific day.

Origination points are a lender fee. They are compensation for the lender and have nothing to do with reducing your rate. One origination point is also 1% of the loan amount, but buying it does not get you a lower rate. It is simply a cost of doing business with that particular lender.

Both appear on your Loan Estimate under Section A, “Origination Charges.” They look nearly identical, which is exactly why some lenders bundle them together in confusing ways. When you see points on a Loan Estimate, always ask: “Are these discount points that reduce my rate, origination points that are a lender fee, or some combination?” Get the answer in writing.

For a $400,000 loan, one origination point that is purely a lender fee costs you $4,000 and does nothing to lower your payment. That $4,000 is gone. For that same loan, one discount point costs $4,000 and might reduce your rate from 6.75% to 6.50%, saving you about $65 per month. Whether that trade-off makes sense depends entirely on how long you keep the loan.

How Permanent Buydowns Work

Permanent buydowns are what most people mean when they say “buying points.” You pay money upfront, and your rate is lower for the entire life of the loan.

Here is the core mechanics for a $400,000 loan at a baseline rate of 6.5%:

Points PurchasedCost (1% per point)Rate After BuydownMonthly PaymentMonthly Savings vs. No Points
0 points$06.500%$2,528-
0.5 points$2,0006.375%$2,496$32
1 point$4,0006.250%$2,464$64
1.5 points$6,0006.125%$2,432$96
2 points$8,0006.000%$2,398$130

Note: Rate reductions assume approximately 0.125-0.25% per point, which is typical in the current environment but varies by lender.

The break-even formula is simple: divide the cost of the points by the monthly savings.

  • 1 point ($4,000) / $64 monthly savings = 62.5 months (about 5.2 years)
  • 2 points ($8,000) / $130 monthly savings = 61.5 months (about 5.1 years)

In this example, you need to keep the loan for at least 62 months before points pay off. If you sell, refinance, or pay off the loan before that, you lose money on the points.

Use the Break-Even Calculator to run your own numbers before committing to any points purchase.

Temporary Buydowns: The 2-1 and 3-2-1 Structures

Temporary buydowns are a different animal entirely. Instead of permanently reducing your rate, they reduce it for the first one, two, or three years, then snap back to the full note rate. These are almost always seller-paid or builder-paid - not something you buy yourself with cash at closing.

How the 2-1 Buydown Works

With a 2-1 buydown on a 6.5% note rate:

  • Year 1: Rate is 4.5% (2% below note rate)
  • Year 2: Rate is 5.5% (1% below note rate)
  • Years 3 through 30: Rate is 6.5% (full note rate)

For a $400,000 loan at 6.5%, the monthly payments look like this:

PeriodEffective RateMonthly PaymentSavings vs. Full Rate
Year 1 (months 1-12)4.500%$2,027$501/month
Year 2 (months 13-24)5.500%$2,271$257/month
Years 3-306.500%$2,528$0

Total interest savings from the buydown: (12 x $501) + (12 x $257) = $6,012 + $3,084 = $9,096

The seller or builder funds this $9,096 difference, which they pay into an escrow account at closing. The lender draws from that account each month to make up the difference between what you pay and the full note rate.

The 3-2-1 Buydown

The 3-2-1 buydown reduces the rate by 3% in year one, 2% in year two, 1% in year three, then reverts to the full rate. On a 6.5% note rate:

  • Year 1: 3.5%
  • Year 2: 4.5%
  • Year 3: 5.5%
  • Years 4-30: 6.5%

These cost more to fund than a 2-1, which is why sellers sometimes prefer the 2-1 when they are offering a concession. Either way, you need to be certain you can afford the full payment when the buydown period ends.

Seller-Paid vs. Borrower-Paid Buydowns

In most cases, temporary buydowns are seller-funded concessions. The seller contributes money at closing (within Fannie/Freddie concession limits based on LTV) that goes into an escrow account to subsidize your rate during the buydown period.

Permanent discount points can be either seller-paid or borrower-paid, subject to the same concession limits. If a seller is willing to put 2% of the purchase price toward your costs, you could use that concession to buy down your rate permanently rather than applying it to other closing costs. Whether that is the best use of the concession depends on the break-even analysis above.

When Points Pay Off

Points are genuinely worth buying under a specific set of conditions. All of these should be true simultaneously:

1. Long expected hold period. You need to keep the loan long enough to break even and then some. If your break-even is 62 months and you plan to stay 15 years, you come out substantially ahead. If there is any realistic chance you move or refinance within 5 years, do not buy points.

2. High baseline rate. When rates are high (7% or above), each point buys you a larger absolute savings in dollars because the rate reduction applies to a high base. When rates are lower (5% or below), the same rate reduction saves you fewer dollars per month, so points are harder to justify.

3. Large loan balance. A 0.25% rate reduction on a $600,000 loan saves about $100 per month. The same reduction on a $150,000 loan saves about $25 per month. Points cost the same percentage of the loan regardless, so break-even periods are roughly similar, but the absolute savings are much larger on bigger loans.

4. No near-term refi plans. If you think rates are going to drop significantly in the next two to three years and you will refinance again, do not buy points now. You will pay to buy down a rate you are about to discard.

5. Cash is available without strain. Buying points makes no sense if it depletes your emergency fund or forces you to choose between points and a meaningful down payment that would eliminate PMI. The opportunity cost of cash matters.

When Points Lose Money

Here is the list of situations where buying points is a bad financial decision:

Short hold horizon. Moving or refinancing before break-even means you paid for savings you never received. The loan officer gets paid the same either way. You are the one absorbing the loss.

Low original rate. If you already have a rate in the 5% to 6% range and you are doing a cash-out or rate-and-term refi, the rate reduction per point buys you very little in monthly savings. The break-even stretches into 7 to 10 year territory quickly.

Rate environment suggests future drop. If the market consensus is that rates will fall 0.5% to 1% over the next 18 months, buying points on today’s rate is likely a losing bet. You will just refinance again when rates drop.

Funds could eliminate PMI instead. If you are borderline on the 20% down threshold, using those funds to hit 20% and eliminate PMI usually has a faster break-even than buying points. Do the comparison explicitly.

Rate reduction per point is small. Lender pricing changes daily. Sometimes a point only buys you 0.125% in rate reduction. At that pricing, the break-even on a $400,000 loan stretches past 8 years. Push back, shop other lenders, or skip the points.

Running the Break-Even on Points

The formula is the same as any break-even calculation. Here is a worked example for a $400,000 refinance at 6.5% baseline:

Scenario: 1 discount point

  • Cost: $4,000
  • Rate reduction: 0.25% (from 6.5% to 6.25%)
  • Old payment: $2,528/month
  • New payment: $2,464/month
  • Monthly savings: $64
  • Break-even: $4,000 / $64 = 62.5 months (5.2 years)

Scenario: 2 discount points

  • Cost: $8,000
  • Rate reduction: 0.50% (from 6.5% to 6.0%)
  • Old payment: $2,528/month
  • New payment: $2,398/month
  • Monthly savings: $130
  • Break-even: $8,000 / $130 = 61.5 months (5.1 years)

Notice that the break-even is nearly identical for one point or two points in this pricing scenario. That means the marginal value of the second point is not better than the first. This is worth checking explicitly - sometimes the first point buys you a larger rate reduction than the second, sometimes less. Always ask for pricing at each increment.

The Refinance Calculator lets you compare your payment at different rates so you can plug your own numbers into this break-even formula.

Points on a Refinance vs. a Purchase

The analysis above applies equally to purchases and refinances, but there is one additional consideration on a refinance: you may already be planning to refinance again if rates fall. In that case, points on today’s refinance have a short shelf life. Do not buy points on a refinance if you think you will refinance again within the next three to four years.

Also, on a refinance, you are already paying closing costs. Adding points on top of already-substantial closing costs means you are committing more capital upfront. Make sure you are comparing total out-of-pocket cost to total monthly savings, not just looking at the point cost in isolation.

The Break-Even Calculator handles total closing cost scenarios and shows you when each dollar invested returns to your pocket.

What Lenders Do Not Tell You About Points

After years in the business, here are the industry practices that work against borrowers when it comes to points:

Points are often baked into the “standard” quote. Some lenders quote a rate that already includes half a point or one point in origination fees. When you compare their rate to a zero-point quote from another lender, the rates look similar but the costs are dramatically different. Always ask every lender for a zero-point quote AND a one-point quote so you can compare apples to apples.

The rate reduction per point is negotiable to a point. Lenders have some flexibility in their pricing. If you are a strong borrower with an excellent credit score, high equity, and stable income, you may be able to negotiate slightly better rate reduction per point than what appears on the initial quote.

Lender credits work in reverse. Instead of paying points to reduce your rate, you can accept a higher rate in exchange for a lender credit toward your closing costs. This is the “no-closing-cost” refinance structure. For short hold periods, this can be smarter than paying points. For long hold periods, it costs you more over time.

Points are tax-deductible in some cases. Points paid on a home purchase to buy down the rate are generally deductible in the year paid if you meet IRS requirements. Points paid on a refinance must typically be amortized over the life of the loan. Consult a tax professional for your specific situation.

ROBO’s Bottom Line

Discount points are not inherently good or bad. They are a math problem with a definitive answer based on your break-even timeline and expected hold period. For long-term homeowners with high-rate loans and no plans to move or refinance again soon, buying one to two points can save tens of thousands of dollars over the life of the loan. For everyone else, the money is usually better left in your pocket or applied to closing costs that are mandatory anyway.

Before your next refinance or purchase, run the numbers: cost of points divided by monthly savings equals months to break even. If that number is less than your realistic hold period with meaningful margin, buy the points. If it is close or exceeds your horizon, skip them. The math does not lie, even when lender pitches do.