Net profit margin vs gross margin
Two different numbers that get confused all the time.
- Gross margin = (Revenue − COGS) ÷ Revenue. Only subtracts the direct cost of what you sold.
- Net profit margin = (Revenue − ALL costs including operating expenses, interest, and taxes) ÷ Revenue. The actual bottom-line profitability.
A coffee shop might have a 70% gross margin (cost of coffee/cups is small) but a 3% net margin after rent, staff, utilities, taxes. The gross number sounds great; the net number is the truth.
Why both matter
- Gross margin tells you whether your pricing covers production costs. Should be high enough to leave room for operating expenses. Below 25-30% is risky for most non-commodity businesses.
- Net margin tells you whether the entire business is profitable. Below 5% is thin; below 0% is losing money.
Industry benchmarks (US)
Typical net profit margins:
- Grocery, hardware retail: 1-3% (very thin, volume-dependent)
- Restaurants: 3-9%
- General retail: 5-10%
- Auto manufacturers: 5-10%
- E-commerce DTC, well-run: 8-15%
- Software / SaaS: 15-25% (and higher at scale — Microsoft, Google ~30%)
- Pharmaceuticals: 18-22%
- Banks: 15-25%
- Luxury brands: 20-30%
What to put in COGS vs OPEX
COGS (Cost of Goods Sold): - Materials, ingredients, components - Manufacturing labor (direct) - Freight-in (shipping to you) - Packaging - Direct production overhead
OPEX (Operating Expenses): - Rent, utilities, insurance - Salaries (admin, marketing, indirect) - Software, professional fees - Marketing and advertising - Office supplies - Depreciation
When in doubt: COGS = costs that scale per unit sold. OPEX = costs you’d have whether you sold 0 units or 1,000.
Frequently asked questions
faq: - q: “Should I include my own salary as an owner?” a: “If you take a salary (S-corp, LLC with payroll) yes, in OPEX. If you take owner draws (sole proprietor, single-member LLC), no — those come AFTER net profit. This is one reason small business margins look higher than they really are: the owner’s labor isn’t priced in.” - q: “How does net margin differ from EBITDA margin?” a: “EBITDA = Earnings Before Interest, Taxes, Depreciation, Amortization. EBITDA margin is higher than net margin because it doesn’t subtract those four. EBITDA is useful for comparing operations across companies with different debt structures and tax situations. Net margin is the actual money-in-the-bank metric.” - q: “Can net margin be artificially low because of one-time costs?” a: “Yes — major equipment purchases, settlements, restructuring costs can crush a year’s net margin without indicating ongoing problems. For trend analysis, use ‘normalized’ net margin (excluding one-time items).”
Related calculators
- Margin calculator — gross margin
- Markup calculator — markup percentage
- LTV:CAC ratio — unit economics
- CAC calculator — Customer Acquisition Cost
Sources
- Investopedia — Net Profit Margin
- Harvard Business School — Profit Margin Industries
- SEC — Form 10-K Annual Report Database
Why net margin trends matter more than the absolute number
A 12% net margin can be excellent or terrible depending on: - Industry: 12% is great for retail, mediocre for SaaS - Maturity: 12% growing → great; 12% shrinking → warning - Scale: 12% on $100M revenue is a $12M business; on $1M revenue it’s $120k (close to one engineer’s salary)
Track margin trends over 4-8 quarters minimum.
Drivers of margin change
Things that improve margin: - Pricing increases (the highest-leverage lever — usually) - Lower COGS via better sourcing or scale - Reduced fixed cost relative to revenue (operational leverage) - Channel mix shift to higher-margin channels - Customer mix shift to higher-margin customers
Things that compress margin: - Discounting / promotion-driven sales - Inflation in raw materials, labor, shipping - Marketing spend growing faster than revenue - New product launches with lower initial margins - Tariffs and trade barriers - Geographic expansion to lower-priced markets
Net margin vs Operating margin vs EBITDA margin
Three commonly-confused metrics:
- Operating margin = (Revenue − COGS − OPEX) ÷ Revenue. Excludes interest and taxes. Best for comparing operations across companies with different capital structures.
- EBITDA margin = (Revenue − COGS − OPEX, before depreciation/amortization) ÷ Revenue. Excludes capex effects. Useful for capital-intensive businesses.
- Net margin = (Revenue − ALL costs including interest and tax) ÷ Revenue. The actual money-in-the-bank metric.
Different metrics serve different purposes. Net margin is what owners take home; EBITDA is what acquirers value.
Last verified: April 2026.