When you’re finalizing a mortgage, lenders often offer the option to pay upfront cash in exchange for a lower interest rate — called “buying points.” It can genuinely save you money, or it can be a bad deal depending entirely on how long you keep the loan. Here’s the math to figure out which applies to you.
What Are Mortgage Points?
A mortgage point (also called a “discount point”) is a fee paid directly to your lender at closing in exchange for a reduced interest rate on your loan. One point typically costs 1% of your total loan amount and commonly reduces your rate by approximately 0.25 percentage points — though the exact reduction varies by lender and market conditions.
Example: On a $350,000 loan, one point costs $3,500 and might reduce your rate from 6.75% to 6.50%.
The Core Question: The Break-Even Point
Buying points only makes financial sense if you keep the loan long enough for the monthly savings to exceed the upfront cost. This crossover point is called the break-even point, and it’s the single most important calculation before deciding to buy points.
Formula:
Break-Even Point (in months) = Cost of Points ÷ Monthly Payment Savings
Real Example: Is Buying Points Worth It?
Loan: $350,000, 30-year fixed
Without points: 6.75% rate → monthly principal & interest payment of approximately $2,271
With 1 point ($3,500 cost): 6.50% rate → monthly principal & interest payment of approximately $2,212
Monthly savings: $59
Break-even point: $3,500 ÷ $59 ≈ 59 months (about 4.9 years)
If you plan to stay in the home and keep this loan for longer than roughly 5 years, buying this point saves you money overall. If you expect to sell or refinance before then, you’d lose money on the upfront cost relative to what you actually save.
When Buying Points Makes Sense
- You’re confident you’ll stay in the home well past the break-even point — a starter home you plan to sell in 3 years is a poor candidate; a forever home is a strong one.
- You have the cash available without depleting your emergency fund or down payment reserves — points are an upfront cost, and stretching finances to afford them defeats the purpose of long-term savings.
- You’re not planning to refinance in the near future — refinancing resets the math entirely, since you’d stop benefiting from the bought-down rate the moment you refinance into a new loan.
When Buying Points Is a Bad Idea
- You might move or refinance within the break-even window — a common mistake is buying points without honestly assessing how long you’ll realistically keep the loan.
- Interest rates are trending downward and refinancing seems likely soon — paying to lock in a slightly better rate on a loan you might replace within a couple of years rarely pays off.
- The cash would be better used elsewhere — if you’re carrying higher-interest debt (credit cards, personal loans) or lack an emergency fund, that money almost always has a better use than buying down a mortgage rate.
Negative Points: Getting a Credit Instead
Some lenders also offer the reverse option — accepting a higher interest rate in exchange for a credit toward your closing costs (sometimes called negative points or lender credits). This can make sense if you’re short on cash at closing but plan to refinance or sell relatively soon, since you’re trading a higher rate (which barely matters if you won’t keep the loan long) for immediate cash relief.
How to Decide: A Simple Checklist
- Calculate the exact break-even point using the real numbers from your specific loan offer, not a generic estimate.
- Honestly estimate how long you’ll keep this loan — consider job stability, family plans, and how long you’ve historically stayed in previous homes.
- Confirm you have the cash available without compromising your down payment or emergency fund.
- Compare the same break-even math against other lenders’ offers — points and their associated rate reductions vary meaningfully between lenders, so the same $3,500 might buy a different rate reduction elsewhere.
Points vs. a Larger Down Payment: Which Is Better?
If you have extra cash and are deciding between buying points or simply putting more money down, consider: a larger down payment reduces your loan amount permanently and may help you avoid or reduce PMI, while points only reduce your rate on whatever loan amount remains. For many buyers close to the 20% down payment threshold, directing extra cash toward the down payment (to eliminate PMI) provides more guaranteed value than buying points.
Frequently Asked Questions
Are mortgage points tax-deductible? In many cases, mortgage points paid on a primary residence purchase can be deductible in the year paid, subject to IRS rules and limits — consult a tax professional to confirm your specific eligibility, as rules and itemization thresholds change.
Can I negotiate the cost or rate reduction offered for points? The relationship between point cost and rate reduction is generally set by the lender based on current market pricing, but it’s worth comparing this specific trade-off across multiple lenders, since it can vary meaningfully.
Is buying points the same as an adjustable-rate mortgage buydown? No — a temporary rate buydown (common with seller or builder incentives) lowers your rate for a limited initial period before reverting to the standard rate, while permanently bought points reduce your rate for the entire life of the loan.
Should first-time homebuyers consider buying points? It depends entirely on how long they plan to stay in the home — first-time buyers sometimes move again within a few years as their needs change, which can make the break-even math less favorable than it appears at first glance.
This article is for informational purposes only and does not constitute financial advice. Loan terms, point pricing, and rate reductions vary by lender — request a detailed loan estimate to calculate exact figures for your specific situation.