“We made $30,000 last month” can mean three very different things depending on who’s talking. It might be sales. It might be what’s left after paying for stock. It might be what’s left after paying for everything. Gross profit and net profit are the two numbers that sort this out, and each answers a different question about your business.
Gross Profit: Does the Product Make Money?
Gross profit = Revenue − Cost of goods sold (COGS)
COGS covers the direct costs of what you sold: materials, stock, packaging, and the labor that goes straight into making the product or delivering the service. It doesn’t include rent, marketing, software or your accountant.
Gross profit tells you whether each sale leaves enough behind to be worth making. If it’s thin, selling more won’t save you. You’d just be doing more work for the same small slice.
Net Profit: Does the Business Make Money?
Net profit = Gross profit − Operating expenses − Interest − Taxes
This is the famous bottom line. It’s what remains after every cost of running the business has been paid. Net profit is what you can reinvest, save, or take home.
A Coffee Shop Example
Here’s one month at a small neighborhood coffee shop:
| Line | Amount |
| Revenue | $30,000 |
| COGS (beans, milk, cups, pastries) | −$10,500 |
| Gross profit | $19,500 |
| Rent | −$4,000 |
| Wages | −$9,000 |
| Utilities | −$900 |
| Insurance, software, marketing | −$1,600 |
| Operating profit | $4,000 |
| Loan interest and taxes | −$1,000 |
| Net profit | $3,000 |
The gross margin is 65% ($19,500 ÷ $30,000). The net margin is 10% ($3,000 ÷ $30,000). Both describe the same shop, and both are true.
Notice what the two numbers say together. The coffee itself is very profitable. Most of that profit then goes to rent and wages. So if this owner wants to earn more, shaving a few cents off the cost of beans won’t do much. The real levers are getting more sales out of the same rent and the same staff hours: a busier morning rush, higher average order, catering.
What Each Number Is Good For
- Use gross profit for pricing and product decisions. Which items earn the most per sale? Is a supplier price rise eating your margin? Should you drop a product? If you’re setting prices, be careful not to confuse margin with markup. They’re different calculations, and this comparison of markup vs margin shows how the mix-up costs money.
- Use net profit for business decisions. Can you afford to hire? Take on a loan? Pay yourself more? Those depend on what’s left after everything.
Reading Them Together
- High gross, low net: the product is fine, overhead is too heavy for your current sales. Grow volume or cut fixed costs.
- Low gross, low net: a pricing or cost problem at the product level. Fix this first, because more sales won’t help.
- Gross margin falling over time: costs are creeping up or you’re discounting too much. Catch it early.
Two Common Mistakes
Leaving your own labor out of COGS. If you make the product yourself and don’t count your time, your gross margin looks better than it is. The day you hire someone to do that work, the real number appears.
Comparing your margins to the wrong industry. A 10% net margin is solid for a café and weak for a software company. Check your numbers against the right benchmark in our guide to good profit margins for small businesses, and run your own figures through the profit margin calculator.
Both numbers come straight off your income statement. If that document still looks like a wall of figures, here’s how to read a profit and loss statement line by line.
