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EconKit

Operating Margin

profitability

The percentage of revenue remaining after deducting all operating expenses, but before interest and taxes. It measures the profitability of core business operations.

Definition

Operating margin strips away the noise of financing decisions and tax structures to show how well a business runs on its own merits. It includes everything from production costs to salaries, rent, and marketing, but excludes interest payments (which depend on capital structure) and taxes (which depend on jurisdiction and accounting).

This metric is especially useful for comparing companies within the same industry, even if they have different debt levels or tax situations. A company with high debt might have a lower net margin than a debt-free competitor, but their operating margins reveal which one actually runs more efficiently. Investors and analysts frequently use operating margin for this reason.

Improving operating margin usually comes from two levers: increasing gross margin (better pricing or lower production costs) or reducing operating expenses as a percentage of revenue (usually through scaling). Healthy SaaS companies target operating margins of 20-30%. Manufacturing companies typically aim for 10-20%. If your operating margin is negative, the core business model needs adjustment before growth can become sustainable.

Formula

Operating Margin = (Operating Income / Revenue) x 100

Example

A company has $1,000,000 in revenue, $300,000 in COGS, and $450,000 in operating expenses (salaries, rent, marketing). Operating income = $1,000,000 - $300,000 - $450,000 = $250,000. Operating margin = 25%.