— Business & Valuation
Net Profit Margin Calculator
Calculate net profit margin from the income statement after COGS, operating expenses, interest, and tax. See gross, operating, and net margins together, earnings per share, benchmark comparison, and margin trend.
Net profit
$90
- Net profit margin
- 9%
- Gross margin
- 40%
- Operating margin (EBIT)
- 15%
Try: Build from the P&L, Net income directly, Versus a 7% benchmark, Loss-making
— The income-statement build
| Line item | Amount | Margin % |
|---|---|---|
| Revenue | $1,000 | 100% |
| Cost of goods sold | $-600 | -60% |
| Gross profit | $400 | 40% |
| Operating expenses | $-250 | -25% |
| Operating income (EBIT) | $150 | 15% |
| Interest | $-30 | -3% |
| Pre-tax income | $120 | 12% |
| Taxes | $-30 | -3% |
| Net income | $90 | 9% |
— The net-margin trend
| Period | Revenue | Net income | Net margin |
|---|---|---|---|
| FY2022 | $800 | $56 | 7% |
| FY2023 | $920 | $74 | 8.04% |
| FY2024 | $1,000 | $90 | 9% |
— Where the money goes
Download— How it works
Net profit = Revenue − COGS − Operating expenses − Interest − Taxes. Net profit margin % = Net income ÷ Revenue × 100. Gross margin = (Revenue − COGS) ÷ Revenue; operating margin = EBIT ÷ Revenue.
The bottom line, and why it’s the hardest margin
Net profit margin is what survives after every cost the business faces — not just the goods, but the people, the premises, the borrowing and the taxman. That makes it the most complete measure of profitability and the most demanding: a company can have a healthy gross margin and still post a thin or negative net margin once operating costs, interest and tax are paid. Net margins also vary enormously by industry — a software firm might net 25% while a supermarket nets 2% — so the number means little in isolation and everything in comparison to peers and to the company’s own history. The calculator builds net income from the income statement so the figure is transparent, and gives the net margin as the headline.
Worked example — revenue 1,000, COGS 600, opex 250, interest 30, tax 30: Gross profit 400 (40%) → operating income 150 (15%) → pre-tax 120 → net income 90. Net profit margin = 90 ÷ 1,000 = 9%.
The margin cascade — where the money leaks
The real insight isn’t the net margin alone but the cascade that produces it. Gross margin shows what the product earns after its direct cost; operating margin (EBIT) shows what’s left after running the business; net margin shows what survives interest and tax. Watching the three together tells you where profitability is won or lost: a strong gross margin that collapses by the operating line points to bloated overheads, while a healthy operating margin that thins out at the bottom points to heavy debt or a high tax burden. The cascade waterfall makes this visible — revenue enters at the top and steps down through each cost to net income, every step labelled with its margin. It’s the single clearest diagnostic of a company’s cost structure.
Benchmarks, EPS and the trend
A margin only has meaning in context. Compare it against an industry benchmark to see whether the business is more or less efficient than its peers, and track it across periods — a rising net margin signals improving efficiency or pricing power, a falling one is an early warning even when revenue is growing. Divide net income by the share count and you get earnings per share, the figure that drives the P/E ratio and equity valuation. Together these turn a single percentage into a story: how profitable, versus whom, and trending which way. Educational tool only — not financial advice; margins are shaped by accounting choices and one-off items, so read them across several periods rather than from a single snapshot.
— Reader questions
What is a good net profit margin?
It depends heavily on the industry — there’s no universal figure. Software and pharma can net 20–30%, while grocery and other high-volume, low-margin businesses run at 2–5% and still be healthy. A “good” net margin is one that beats the company’s industry peers and is stable or improving over time, which is why benchmarking and trend matter more than the absolute number.
What is the difference between gross, operating and net margin?
They’re three levels of the same income statement. Gross margin is profit after only the direct cost of goods; operating margin (EBIT) is after operating expenses too; net margin is after everything, including interest and tax. Reading them together — the margin cascade — shows where profitability is gained or lost on the way from revenue to the bottom line.
How do you calculate net profit margin?
Divide net income by revenue and multiply by 100. Net income is revenue minus all costs — COGS, operating expenses, interest and taxes. For example, 90 of net income on 1,000 of revenue is a 9% net margin. The calculator can build the net income for you from each income-statement line.
Can net profit margin be negative?
Yes — if total costs exceed revenue, net income is negative and so is the margin. A negative net margin means the business is losing money on its operations as a whole, common for early-stage or turnaround companies. The cascade shows whether the loss starts at the gross level (the product itself loses money) or lower down (overheads, interest or tax tip it into the red).
Is net margin the same as EBITDA margin?
No. EBITDA margin is earnings before interest, tax, depreciation and amortization, as a share of revenue — it sits above the net line and ignores financing, tax and non-cash charges. Net margin is the true bottom line after all of those. EBITDA margin is useful for comparing operating performance across capital structures; net margin reflects what shareholders actually keep.