Net Margin

Net margin, also called net profit margin, measures what percentage of revenue translates into bottom-line profit after all expenses have been deducted — operating costs, interest, taxes, depreciation, and everything else. It is the most comprehensive profitability ratio.

The formula divides net income by total revenue. A company with 500 million dollars in revenue and 75 million in net income has a net margin of 15 percent.

Context and Comparison

Net margin varies enormously by industry. Software companies routinely achieve 25 to 40 percent net margins because their products cost almost nothing to replicate once built. Grocery retailers may operate on 1 to 3 percent net margins because competition drives prices close to cost. Comparing net margins across industries is meaningless — the comparison must always be within the same sector.

When net margin diverges significantly from operating margin, the difference usually comes from interest expense or unusual tax items. A company with strong operating margin but weak net margin may be carrying too much debt. This is why analyzing multiple margin metrics together provides a more complete picture.

Net margin is one of four profitability metrics used in the FPI Rating. Consistent or expanding net margins over multiple years are a strong signal of a well-managed business with durable competitive advantages.