Gross margin, operating margin, and net margin each answer a different question about a business, and conflating them is one of the most common analytical mistakes we see in founder-prepared financials. Gross margin — revenue minus cost of goods sold, divided by revenue — measures how efficiently the core product or service is produced, before any overhead is considered.
Operating margin takes that a step further by subtracting operating expenses like salaries, rent, and marketing, revealing how efficiently the business runs as a whole before financing costs and taxes. Net margin subtracts everything, including interest and tax, to show what actually reaches the bottom line. A business can have a strong gross margin and still lose money at the net level if operating costs or debt service are out of proportion.
Healthy benchmarks vary considerably by industry — a services business might reasonably target 50-70% gross margin with 15-20% net margin, while a retail or logistics operation often runs on much thinner margins across the board but higher volume. The more useful exercise for most founders isn't comparing to an industry average, but tracking their own margin trend over time and understanding precisely which line item is driving any change.