The three margins in one table
Every profit margin has the same shape: a profit figure divided by net revenue, written as a percentage. The SEC's Beginners' Guide to Financial Statements gives the operating margin as income from operations divided by net revenues, and describes it as the share of each sales dollar that was profit. Gross and net margin follow the same pattern with a different profit line on top.
| Margin | Profit on top | What it answers |
|---|---|---|
| Gross | Net revenue minus cost of goods sold | Do my prices cover what the product costs me? |
| Operating | Gross profit minus operating expenses | Does the business make money from what it does? |
| Net | Bottom line after interest and taxes | What do the owners keep from each dollar of sales? |
The formulas
Multiply each result by 100 for a percentage. Use net revenue in all three: gross sales minus returns and allowances such as discounts. That keeps the three margins comparable, because they share one denominator and only the profit line changes.
Where each number sits on an income statement
An income statement runs from revenue at the top to net income at the bottom, and each margin uses one of the subtotals on the way. The SEC guide walks through it in this order:
- Net revenue. Gross revenue, the money brought in from sales, minus returns and allowances.
- Cost of sales, also called cost of goods sold. What it cost to make or buy what you sold in the period.
- Gross profit. Net revenue minus cost of sales. It is "gross" because other expenses have not been taken out yet.
- Operating expenses. Costs that keep the business running but cannot be tied directly to a unit sold, such as administrative salaries, research and marketing. Depreciation is deducted here too.
- Income from operations, or operating income. Gross profit minus operating expenses, before interest and income tax.
- Net income. What is left after interest income and expense and income tax: the bottom line, also called net profit or net earnings.
Public companies follow the same order by rule. Regulation S-X, Rule 5-03, lists the income statement captions for commercial and industrial companies: net sales and gross revenues first, then costs and expenses applicable to sales, other operating costs, selling, general and administrative expenses, then nonoperating income, interest and nonoperating expenses, income before tax, income tax expense, and finally net income or loss.
A worked income statement
Take a small coffee roaster that sells beans online and to cafés. Here is one year, with each line also shown as a share of net revenue. The shares on the profit lines are the margins.
| Line | Amount | Share of net revenue |
|---|---|---|
| Gross sales | $520,000 | |
| Returns and discounts | −$20,000 | |
| Net revenue | $500,000 | 100.0% |
| Cost of goods sold (green coffee, roasting, bags, shipping in) | −$290,000 | 58.0% |
| Gross profit | $210,000 | 42.0% gross margin |
| Salaries | −$96,000 | 19.2% |
| Rent | −$24,000 | 4.8% |
| Marketing | −$18,000 | 3.6% |
| Software, insurance and other | −$12,000 | 2.4% |
| Depreciation of the roaster | −$10,000 | 2.0% |
| Operating income | $50,000 | 10.0% operating margin |
| Interest on the equipment loan | −$6,000 | 1.2% |
| Income before tax | $44,000 | 8.8% pretax margin |
| Income tax at 21% | −$9,240 | 1.8% |
| Net income | $34,760 | 7.0% net margin |
Step by step: $210,000 ÷ $500,000 = 42.0% gross margin. $50,000 ÷ $500,000 = 10.0% operating margin. $34,760 ÷ $500,000 = 7.0% net margin. The tax line assumes the roaster is a C corporation paying the 21 percent federal rate on its pretax income, with state tax left out to keep the example simple.
Read the gap between the three. Of every dollar a customer pays, 58 cents go to the beans and the bag, 32 cents to running the business, about 3 cents to the bank and the tax office, and 7 cents stay with the owners. The profit margin calculator works out the gross margin from any cost and price.
What moves each margin
The useful part of having three margins is that each one reacts to a different kind of change. Here is the same roaster with one thing changed at a time.
| Change | Gross margin | Operating margin | Net margin |
|---|---|---|---|
| As above | 42.0% | 10.0% | 7.0% |
| Coffee costs 10% more | 36.2% | 4.2% | 2.4% |
| Prices up 5%, same volume | 44.8% | 14.3% | 10.4% |
| Rent up $12,000 | 42.0% | 7.6% | 5.1% |
| Loan paid off | 42.0% | 10.0% | 7.9% |
- Product costs hit all three. A 10% rise in the cost of goods takes the gross margin from 42.0% to 36.2%, but the operating margin falls by more than half, from 10.0% to 4.2%, because the fixed costs above it did not shrink.
- Prices also hit all three, in the other direction. A 5% price rise with the same number of bags sold lifts net income from $34,760 to $54,510. Whether volume really holds is the question the price increase calculator answers: how many sales you can lose before the higher price earns less.
- Overheads such as rent leave the gross margin alone and show up in the operating and net margins.
- Financing shows up only in the net margin. Paying off the loan does not change how well the roastery runs, so gross and operating margin stay the same.
That is why the margins are read together. A falling gross margin points at prices or suppliers. A steady gross margin with a falling operating margin points at overheads. A steady operating margin with a falling net margin points at debt or taxes.
Operating and net margins by industry
The Census Bureau's Quarterly Financial Report publishes sales, operating profits and after-tax profits for U.S. corporations by industry. The table divides them for the second quarter of 2026. Operating profits there are profits before nonoperating income and expense items and income taxes, which matches the operating income above. The report does not publish gross profit in this table, so there is no gross margin column.
| Industry, Q2 2026 | Operating margin | After-tax margin |
|---|---|---|
| All manufacturing | 12.8% | 15.6% |
| Food | 7.0% | −0.1% |
| Pharmaceuticals and medicines | 20.6% | 10.2% |
| Petroleum and coal products | 9.6% | 13.3% |
| Motor vehicles and parts | 4.5% | 3.2% |
| All mining | 27.2% | 25.0% |
| All wholesale trade | 3.9% | 3.1% |
| All information | 19.3% | 42.7% |
| Telecommunications | 19.7% | 15.4% |
| Computer systems design | 5.4% | 3.4% |
| Professional and technical services, except legal | 1.9% | 0.2% |
Two cautions before you compare yourself with these numbers. First, the survey covers larger companies only: manufacturers with total assets of $5 million and over, and mining, wholesale, information and professional services companies with $50 million and over, when the sample was drawn. Second, it is one quarter, not seasonally adjusted, and a single quarter can swing. Wholesalers show the low margins of a high-volume business: 3.9% operating and 3.1% after tax.
The table also shows that the net margin can sit above the operating margin, or below zero while the operating margin is positive. Large information companies earned 19.3% from operations but 42.7% after tax, so more than half their profit came from items below the operating line. Food manufacturers ran a 7.0% operating margin and still showed a small after-tax loss. When the two margins point in different directions, look at the nonoperating lines before drawing a conclusion.
Reading the margins off a Schedule C
If you are a sole proprietor, your tax return already has most of these numbers. On Schedule C (Form 1040) for 2025, line 1 is gross receipts, line 2 returns and allowances, and line 3 the difference, which is your net revenue. Line 4 is cost of goods sold and line 5 gross profit, so line 5 ÷ line 3 is your gross margin.
There is no operating income line. Interest (line 16) sits among the other expenses, so line 31, net profit, is after interest but before income tax and self-employment tax, which are figured on your Form 1040 and Schedule SE. Line 31 ÷ line 3 is therefore a pretax margin, not a net margin in the sense of a corporate income statement. Keep that in mind when you compare your result with a company's net margin.
Gross margin, markup and break-even
Gross margin is the one people mix up most, usually with markup. Both start from the same gross profit, but margin divides by the selling price and markup by the cost. The margin vs markup guide has the conversion table, and the markup calculator turns a target margin into a price.
For the break-even point you need a slightly different idea: the contribution margin, which is price minus the costs that rise with each unit sold. It is close to the gross margin but not the same. Card fees and shipping out to customers are often booked as operating expenses even though they grow with every sale, and part of the cost of goods can be fixed. The break-even calculator asks for fixed costs and variable cost per unit directly, so sort your costs that way before you use it.
Common mistakes
- Calling gross margin "profit margin". A 42% gross margin and a 7% net margin describe the same business. Say which one you mean.
- Mixing denominators. Divide every margin by the same net revenue. Using gross sales for one and net revenue for another makes them drift apart for no real reason.
- Leaving costs out of cost of goods sold. Schedule C's cost of goods sold section counts purchases, the cost of labor, materials and supplies, and other costs, adjusted for the change in inventory. Book those as operating expenses instead and the gross margin looks better than your pricing really is.
- Comparing a pretax margin with an after-tax one. A sole proprietor's Schedule C profit is before income tax, a corporation's net income after it.
- Judging by one quarter. As the Census figures show, nonoperating gains and losses can move the net margin far more than the business itself moved.
Frequently asked questions
What is the difference between gross, operating and net profit margin?
All three divide a profit by net revenue. Gross margin takes out only the cost of the goods or services sold. Operating margin also takes out the costs of running the business, such as salaries, rent, marketing and depreciation. Net margin takes out everything, including interest and income tax, and uses the bottom line of the income statement.
Which profit margin is most important?
They answer different questions. Gross margin tells you whether your prices cover what the product costs. Operating margin tells you whether the business itself makes money before financing and taxes. Net margin tells you what the owners keep. Operating margin is the one to compare between businesses that are financed differently, because interest sits below it.
Can net profit margin be higher than operating margin?
Yes, when nonoperating income such as investment gains, interest income or a gain on selling an asset is larger than interest expense and taxes. In the Census Bureau's second quarter 2026 data, large information companies had an operating margin of 19.3% and an after-tax margin of 42.7%.
Is gross margin the same as markup?
No. Both use gross profit, but margin divides it by the price and markup divides it by the cost. A product bought for $60 and sold for $100 has a 40% gross margin and a 66.7% markup.
Where do I find these numbers for my own business?
On your income statement or profit and loss report. If you file Schedule C as a sole proprietor, line 3 is your net receipts, line 5 your gross profit and line 31 your net profit. Schedule C has no operating income line, and its net profit is before income tax and self-employment tax.
Sources
- U.S. Securities and Exchange Commission, Beginners' Guide to Financial Statements (gross profit, operating income, net income and the operating margin formula)
- 17 CFR 210.5-03, Regulation S-X, income statement captions for commercial and industrial companies
- U.S. Census Bureau, Quarterly Financial Report: Manufacturing, Mining, Wholesale Trade, and Selected Service Industries, second quarter 2026, press release tables (Table 6)
- IRS, Schedule C (Form 1040) 2025, Profit or Loss From Business
- 26 U.S.C. 11, tax imposed on corporations (21 percent rate)