When you’re closing on a mortgage, the lender will often offer you a deal that sounds deceptively simple: pay more money upfront, get a lower interest rate for the life of the loan. Each "point" costs 1% of the loan amount and typically reduces your rate by 0.25 percentage points. On a $320,000 loan, one point costs $3,200.
Whether that’s a good deal depends entirely on one number: your break-even date. If you stay in the home long enough, you save more in lower monthly payments than you spent buying the points. If you sell or refinance before that date, you’ve lost money. The math isn’t complicated — but it requires you to honestly predict how long you’ll stay, which is the part most buyers get wrong.
How Mortgage Points Actually Work
Discount points — sometimes called "buying down the rate" — are prepaid interest. Each point equals 1% of the loan principal and typically buys a 0.25% rate reduction, though this ratio varies by lender, loan type, and current market conditions. Always get the specific rate-per-point quote from your lender in writing — don’t assume a fixed relationship.
On a $320,000 loan at 7.0%, your monthly principal and interest payment is approximately $2,129. Buy one point ($3,200) to bring the rate to 6.75%, and the payment drops to $2,076 — a savings of $53 per month.
Buy two points ($6,400) to reach 6.5%, and the payment becomes $2,023 — a savings of $106 per month compared to the 7.0% rate.
Those monthly savings sound modest. They are. That’s why the break-even calculation is so important.
The Break-Even Calculation
Break-even is simple division: cost of points ÷ monthly savings = months to break even.
One point scenario: $3,200 ÷ $53/month = 60 months (5 years)
Two points scenario: $6,400 ÷ $106/month = 60 months (5 years)
In this case, both scenarios break even at the same time — 5 years — because the cost and savings scale proportionally. This is typical when each additional point buys the same rate reduction. The break-even point doesn’t change with quantity; what changes is the size of the bet you’re making on staying.
If you stay 10 years, two points saves you roughly $6,720 after recovering the upfront cost. If you move at year 4, you’ve lost $2,056 on the two-point purchase. That’s not a rounding error.
What Changes the Break-Even Math
Three variables shift the calculation significantly:
The lender’s rate-per-point ratio. Some lenders offer 0.375% rate reduction per point rather than 0.25%. That changes the monthly savings and shortens the break-even period substantially. A better rate-per-point ratio almost always makes points more attractive. Always ask this question explicitly: "What rate do I get with zero points, and what rate do I get with one point?"
Your tax situation. Mortgage points are generally tax-deductible in the year you pay them if you’re buying a primary residence and itemizing deductions. If you’re in the 22% federal bracket, $3,200 in points generates roughly $704 in tax savings — effectively reducing your upfront cost to $2,496. That shortens the break-even from 60 months to 47 months.
This matters less for most buyers now than it did before the standard deduction nearly doubled. If you’re not already itemizing — if your total mortgage interest, state taxes, and charitable contributions don’t exceed the standard deduction — the points deduction adds no marginal benefit. Check this before factoring it into your math.
Opportunity cost of the cash. The $3,200 you pay for a point isn’t free. If you invest it instead, at a conservative 5% average return, that grows to roughly $5,100 over 10 years. The break-even analysis should compare against this alternative — especially if you’re paying points with money that would otherwise go into a retirement account with a match. The invest vs. pay down mortgage trade-off covers this framework in detail — the logic applies equally to buying down a rate vs. investing the difference.
The Honest Answer on Whether to Buy Points
Here’s my direct take: for most first-time buyers and most people who’ve bought a home in the last five years, paying points is usually a bad deal. Not always — but usually.
The national median tenure in a home is approximately 8-13 years depending on the survey, but that median masks a distribution with a very long left tail. A lot of people — particularly younger buyers and people in high-job-mobility industries — move within 5 years. If there’s a reasonable chance you’ll move, change jobs, or refinance when rates drop, the upfront cost of points is a gamble that will cost you money.
The rate environment matters enormously. When rates are high and expected to fall, paying points makes even less sense — you’re locking in a rate reduction on a loan you’ll likely refinance anyway when rates come down. When rates are stable or expected to rise, the break-even math is more favorable because the "I’ll just refinance" exit path is less available. How the refinancing break-even calculation works is a direct parallel — the same concept of sunk costs vs. future savings applies whether you’re buying points at origination or refinancing later.
When Points Do Make Sense
There are specific situations where buying points is genuinely the right call:
You’re certain you’ll stay 7+ years. Certainty is rare, but some situations come close: you’ve bought a forever home in a town where you’re rooted, your kids are in school and you won’t move until they graduate, you’re 62 and this is your retirement home. If there’s a high probability you’ll be in this house at the 10-year mark, the math tilts toward buying points.
You have cash that doesn’t have a better use. If the alternative to buying points is letting cash sit in a low-yield checking account, the risk-free monthly savings from points starts looking better. But if that cash is an emergency fund (don’t touch it), a retirement account contribution (don’t skip it), or a high-interest debt payoff opportunity (definitely don’t skip it), the points lose.
The lender’s rate-per-point ratio is unusually favorable. If one point buys 0.375% or 0.5% in rate reduction rather than the standard 0.25%, the break-even shortens dramatically — sometimes to 3-4 years. At 40 months to break even, the calculation looks very different from 60 months.
You’re a retiree on a fixed income. Monthly payment certainty has real value for someone who can’t absorb a payment shock. If you’re buying a retirement home at 66 with significant savings and plan to be there for the rest of your life, the lower payment that points provide has a stability value that a straight break-even calculation doesn’t fully capture.
A Specific Example: The Same $320,000 Loan, Two Buyers
Buyer A: 34 years old, buying in a city where she expects to get married, have kids, and possibly upsize in 5-7 years. Currently renting, excited about homeownership. Rate: 7.0%, zero points.
Buyer B: 58 years old, buying a retirement home in a lower cost-of-living state, plans to be there until he can’t live independently. Solid retirement savings, no debt, $40,000 in cash above his emergency fund. Rate decision: one point ($3,200) drops from 7.0% to 6.75%.
Buyer A is right to skip the points. Her break-even is 5 years and her timeline is 5-7 years — it’s a coin flip on whether she comes out ahead. The $3,200 is better held for moving costs, furniture, or emergency fund cushion.
Buyer B is a good candidate for the points. His timeline is 20+ years with very high probability. At year 10, he’s ahead by roughly $3,160. At year 20, he’s ahead by nearly $10,000. And the $53/month reduction in housing expense has real value on a fixed retirement income. This is the article’s Joe L. demographic — and for this buyer, one point makes sense.
What About Negative Points (Lender Credits)?
The flip side of buying down your rate is taking a higher rate in exchange for a lender credit that offsets your closing costs. This is called a lender credit or negative points, and it works in exactly the same reverse logic: you accept a higher monthly payment in exchange for lower upfront costs.
For buyers who are cash-constrained at closing — stretching to make the down payment with little left over — a lender credit can make the difference between closing and not closing. The credit may cover $2,000-$6,000 in closing costs at the cost of $30-60/month in higher payments. Your break-even on that trade is also roughly 4-7 years, but you’re running the math in reverse: how long before the extra monthly payments exceed the closing cost savings.
Both tools — discount points and lender credits — are rate adjustments with the same fundamental logic. The only question is which direction of the trade makes sense for your specific cash position and timeline.
How Credit Score Affects Whether Points Are Worth It
One factor that interacts with the points decision in ways most buyers don’t expect: your credit score determines your baseline rate before points apply. A borrower with a 780 score might be quoted 6.75% with zero points. A borrower with a 680 score might be quoted 7.5% with zero points. Buying one point brings those rates to 6.5% and 7.25% respectively — but the 680-score borrower is paying a 0.75% rate penalty even after the point purchase, and that penalty isn’t something more points can eliminate. How much a 750 vs. 800 credit score affects your mortgage rate covers this spread in detail — if your score has room to improve before you buy, that’s often worth more than any points strategy.
The Calculator to Use
The Consumer Financial Protection Bureau’s mortgage points calculator at consumerfinance.gov lets you input your specific loan amount, rate, and points cost and generates a clear break-even analysis. Run your actual numbers there before making a decision — the general framework in this article is correct, but the specific month where your break-even lands depends on your exact loan terms.
For a deeper grounding in how mortgage costs work across the life of a loan, Nolo’s Essential Guide to Buying Your First Home covers the full range of upfront cost decisions — points, PMI, down payment trade-offs — in plain language. And if you want a broader framework for evaluating real estate decisions as part of your overall financial picture, Set for Life by Scott Trench makes the case for how the home purchase decision fits into long-term wealth building — useful context before you add points costs on top of an already large commitment.