If you have shopped for a mortgage in the last few weeks, you have almost certainly seen the same line on a loan estimate: “discount points.” Sometimes it is a single line with a number like 1.000 next to it. Sometimes it is broken into fractional points labeled 0.375 or 0.875. Either way, the lender is asking whether you would like to hand over a few thousand dollars at closing in exchange for a permanently lower interest rate, and the answer is rarely a clean yes or no. It is one of the most expensive checkboxes on the entire loan estimate, and it is also one of the least well explained.
This is a plain-English walk-through of what mortgage points are, how the math actually works at today’s rates, when they are worth buying, and when they are quietly a bad deal that the loan officer is not going to flag for you.
What a Mortgage Point Actually Is
A mortgage point — sometimes called a “discount point” — is prepaid interest. You pay the lender extra money at closing, and in return, they lower your interest rate for the life of the loan. The pricing is standardized in U.S. residential lending: one point equals 1% of the loan amount. On a $400,000 mortgage, one point costs $4,000. On a $250,000 mortgage, it costs $2,500.
In exchange, your interest rate drops by somewhere between roughly 0.125% and 0.25% per point, depending on the lender, the day, and where the broader bond market is sitting. Bankrate’s overview of how mortgage points work puts the typical reduction at about a quarter of a point on rate per full point paid, which is a useful rule of thumb to keep in your head when you are reading a loan estimate.
That is the trade. You spend money you have today to lower a number you will be paying for thirty years. The question is whether the math works.
The Break-Even Calculation Every Borrower Should Do
The single most useful number in this entire decision is the break-even point — the number of months it takes for your monthly savings on the lower rate to add up to what you spent on the points in the first place.
Here is the math at current rates. The 30-year fixed mortgage averaged 6.62% the week of May 26, 2026, according to industry trackers. Imagine a buyer with a $400,000 loan at 6.62%, which produces a principal-and-interest payment of about $2,561 a month. The lender offers one discount point for $4,000, which knocks the rate down to roughly 6.37%. The new monthly payment is $2,495, a savings of $66 a month.
Divide $4,000 by $66 and you get 60.6 months. That is the break-even. If you keep the loan for more than five years, you come out ahead. If you sell or refinance before then, you lose money on the trade. NerdWallet’s mortgage points calculator walks through this exact math with your own numbers, and it is worth thirty seconds of your time before signing anything.
Most break-evens for one point at today’s rates land somewhere between roughly five and eight years. Two points push that window further out and require even more confidence that you will stay put.
Why Plans Matter More Than the Math
The break-even formula is straightforward, but the input that wrecks it for most buyers is how long they actually keep the loan. The Consumer Financial Protection Bureau collects data on first-mortgage tenure, and the median U.S. homeowner sells or refinances well before the loan ends — often within seven to ten years and far sooner in faster-moving housing markets. The CFPB also has a useful explainer on loan estimates and how to compare points across lenders, which is the actual document you will be reading.
That means the average buyer who pays for one point with a five-year break-even just barely comes out even, and the average buyer who pays for two points usually does not. If you are buying a starter home, taking a job in a city you are not sure you will stay in, or considering a refinance the moment rates dip, you are usually better off keeping the cash and not buying the rate down.
The buyers for whom points reliably pay off are the ones who fit a narrow profile: they are buying what they consider a forever home, they have a stable income, they have enough cash to comfortably keep an emergency fund after closing, and they think rates are more likely to rise or stay flat than fall meaningfully.
The Rate Environment in 2026 Complicates the Decision
There is one more wrinkle worth understanding. When you buy points, you are betting that the rate you locked in is meaningfully better than whatever rate will be available later through a refinance. In 2026, that is a genuinely hard call. Mortgage rates have drifted between roughly 6.4% and 7% for most of the past year, the Federal Reserve has been holding the federal funds rate steady, and several mainstream forecasters expect the 30-year fixed to drift toward the 5.50%-6.00% range by year-end if inflation continues to cool.
If those forecasts are right, a buyer who pays $4,000 to lock in 6.37% today could find themselves refinancing into something near 6% well before the five-year break-even — and the unrecovered portion of those points effectively disappears. That is why a lot of mortgage advisers are recommending one point at most in this environment, and only for buyers who plan to stay put for a decade or more.
What the IRS Allows You to Deduct
Points have one other quirk worth understanding before you decide: they are usually tax-deductible if you itemize, and the rules are different depending on whether you are buying a home or refinancing.
According to IRS Topic No. 504 on home mortgage points and Publication 936, points you pay to obtain a mortgage on your primary residence — assuming the loan is secured by the home, the points are a customary practice in your area, and they are paid in cash at closing — are generally deductible in the year you pay them. That can take a meaningful bite out of the effective cost of buying points if you already itemize.
Refinance points are different. The IRS requires you to spread the deduction across the life of the new loan rather than deducting the whole thing up front. On a 30-year refi, that means a $4,000 point payment is deducted in 1/30th slices each year — about $133 a year — which is a much weaker tax benefit. If you later refinance again or pay the loan off, any remaining unamortized points become deductible in that final year.
The deduction only helps if your itemized deductions exceed the 2026 standard deduction, so for most renters-turned-first-time-buyers with no other big write-offs, the tax math is less generous than it sounds. The IRS’s mortgage interest deduction guide is worth reading once before you assume points “pay for themselves” through tax savings.
How to Compare Loan Estimates That Include Points
When you get loan estimates from multiple lenders, the only fair comparison is at the same point structure. A lender quoting 6.25% “with one point” is not actually offering a lower rate than a lender quoting 6.50% “with no points” until you bake the upfront cost into the comparison. Ask each lender for a zero-point quote alongside whatever they want to show you, and put them side by side. That is the comparison that tells you whether you are getting a better deal or just being charged extra for the same one.
The annual percentage rate (APR) line on the loan estimate is designed to do some of this work for you by spreading the upfront points cost across the loan’s life, but it assumes you keep the loan to maturity, which most people do not. So treat APR as one input, not the answer.
A Simple Decision Framework
If you find yourself staring at a loan estimate with points already baked in, walk through three questions before signing. First, do you plan to be in this home and in this loan for more than your break-even? If the answer is anything less than a confident yes, points are usually a loss. Second, would the cash for points be better used as a bigger down payment to avoid private mortgage insurance, as a fatter emergency fund, or as a buffer in a high-yield savings account that is currently earning around 4% APY? Third, do you actually need the lower monthly payment to qualify or to feel comfortable in your budget? If the answer to that last one is yes, buying down the rate may be worth it even if the pure math is borderline.
Points are not inherently good or bad. They are a tool — one that rewards patience and stability, and that quietly punishes mobility. The cleanest way to decide whether to buy them is to run the break-even, sanity-check your plans, and ignore the marketing language about “lifetime savings” that does not survive the moment you sell the house.