In finance, a point is a unit of measurement, but its size depends entirely on where you encounter it. In the stock market, one point equals one unit of an index’s quoted value. On a mortgage, one point equals one percent of the loan amount. In bond markets and central banking, one basis point equals one-hundredth of one percent. Same word, three very different amounts of money, and mixing them up is how people make expensive mistakes.
Points in Stock Market Reporting
When a news anchor says the S&P 500 “dropped 40 points,” the index’s calculated value fell by 40 units. That number is not measured in dollars. It is the output of a formula that divides the total float-adjusted market capitalization of the index’s companies by a scaling figure called the divisor.1S&P Dow Jones Indices. Index Mathematics Methodology
The real trap is confusing points with percentages. A 500-point drop in the Dow when the index sits at 40,000 is a 1.25% decline. The same 500-point drop when the Dow was at 10,000 would have been a 5% crash. Points tell you the raw number. Percentages tell you how much it actually matters. Financial media favors points because bigger numbers make better headlines, so convert to percentages before reacting to a headline move.
Points on a Mortgage
On a mortgage, a point means something completely different. One point equals one percent of the loan amount. On a $400,000 mortgage, one point is $4,000. You do not have to buy whole points: lenders sell fractions like 0.5 points ($2,000) or 1.375 points ($5,500). Two kinds of points show up on a loan, and they do opposite jobs.
Discount Points
Discount points are prepaid interest. You pay cash upfront at closing in exchange for a permanently lower interest rate.2Consumer Financial Protection Bureau. How Should I Use Lender Credits and Points (Also Called Discount Points)? Each discount point lowers the rate by roughly 0.25 percentage points, though the exact reduction varies by lender and market conditions. The IRS treats discount points as prepaid interest, which means you can often deduct them in the year you pay them if the loan is secured by your primary residence and you meet the requirements in Publication 936.3Internal Revenue Service. Publication 936 – Home Mortgage Interest Deduction
Federal rules require lenders to disclose discount points on both the Loan Estimate and the Closing Disclosure. Under Regulation Z, discount points must appear as the first item under origination charges, shown as both a percentage of the loan and a dollar figure.4eCFR. 12 CFR 1026.37 – Content of Disclosures for Certain Mortgage Transactions If you see points on those forms without a matching rate reduction, ask the lender to explain. By law, points listed there must be tied to a lower rate.
Origination Points
Origination points look similar on paper but do a different job. They compensate the lender for processing your application, verifying income, underwriting, and preparing documents. One origination point also equals one percent of the loan amount.2Consumer Financial Protection Bureau. How Should I Use Lender Credits and Points (Also Called Discount Points)? The critical difference: origination points do not lower your interest rate. They are an administrative fee. Federal law prohibits lenders from charging fees that do not correspond to services actually performed.5Office of the Law Revision Counsel. 12 USC 2607 – Prohibition Against Kickbacks and Unearned Fees On the Closing Disclosure, origination charges appear under Section A on page 2.6Consumer Financial Protection Bureau. Closing Disclosure Sample Form Origination fees typically run from about 0.5% to 1% of the loan and are often negotiable. Some lenders advertise “no-point” loans, which roll these costs into a higher rate. The fee does not disappear. It just changes form.
Lender Credits
Lender credits are the mirror image of discount points. Instead of paying cash upfront to lower your rate, you accept a higher rate and the lender gives you a credit to offset closing costs.2Consumer Financial Protection Bureau. How Should I Use Lender Credits and Points (Also Called Discount Points)? Less cash at closing, more interest paid over time. Credits can make sense if you are short on closing funds, plan to sell soon, or expect to refinance before the higher rate costs more than the credit saved you.
When Discount Points Actually Pay Off
Paying discount points only works if you keep the mortgage long enough to recoup the upfront cost through lower monthly payments. The math is straightforward: divide the cost of the points by the monthly savings they produce.
Say you pay $4,000 for one point and your monthly payment drops by $65. Your break-even period is roughly 62 months, just over five years. Sell the house or refinance before you hit that mark and you lost money on the deal. Every month past break-even is pure savings.
This is where most people get tripped up. They fixate on the lower rate without asking how long they will actually hold the loan. If you are likely to move within a few years, or if rates could drop enough to trigger a refinance, paying points is usually a bad bet. The calculation also ignores opportunity cost: that $4,000 invested elsewhere might earn returns that outpace the interest savings. Run the numbers both ways before committing.
Basis Points
A basis point is one-hundredth of one percentage point, or 0.0001 in decimal form. One hundred basis points equal 1%, and 50 basis points equal 0.5%. The unit exists because in bond markets and central banking, tiny rate movements shift enormous sums, and saying “zero point zero one percent” is both clumsy and easy to mishear.
The Federal Reserve moves its target rate in basis-point increments, most commonly 25 at a time.7Federal Reserve. How Have the Fed’s Three Rate Hikes Passed Through to Selected Short-Term Interest Rates? During the tightening cycle from 2022 to 2023, the Fed raised rates by more than 500 basis points in total, sometimes hiking 50 or 75 basis points at a single meeting. Those moves rippled into mortgage rates, auto loans, and corporate borrowing costs within days.
Basis points also show up in investment fees. A mutual fund with an expense ratio of 15 basis points charges $1.50 per year for every $1,000 invested. A fund charging 75 basis points costs $7.50 per $1,000, five times more. Over decades of compounding, that gap erodes a meaningful chunk of returns. Bond analysts use the same unit for yield spreads: a corporate bond yielding 120 basis points more than a comparable Treasury pays 1.2% extra interest to compensate for the risk of lending to a company instead of the federal government.
Percentage Points vs. Percent
This distinction trips up even experienced investors, and it matters more than most people realize. A percentage point is an absolute unit. Going from 3% to 4% is a one-percentage-point increase. A percent change is relative. Going from 3% to 4% is a 33% increase, because 1 is one-third of 3.
The practical stakes are real. If your mortgage rate rises by “one percentage point,” from 6% to 7%, the impact on your payment is predictable and fixed. If someone says the rate rose “one percent,” the mathematically correct reading is a move from 6% to 6.06%, because one percent of 6% is 0.06 percentage points. In casual conversation people use the terms interchangeably. In a financial contract, mixing them up is the difference between a minor adjustment and a significant rate hike. Basis points sidestep the confusion entirely: a 25-basis-point increase always means the same thing, no matter the starting rate.