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← Work & Business
Term 921 of 1419
▤1 min read▶Two voices★Work & Business

Operating expenses.

The costs of running the business that are not tied directly to making each unit, such as rent, salaries, and marketing.
Also called Opex
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Operating expenses
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In plain English

Operating expenses are the recurring costs a company incurs to keep operating, listed below gross profit on the income statement and subtracted to reach operating income. Typical lines are selling, general and administrative expenses, research and development, and depreciation and amortization. They differ from cost of goods sold because they do not scale one for one with units produced. They differ from interest and taxes because those sit below operating income and relate to financing and government rather than operations. Watching operating expenses as a share of revenue shows whether a growing company is getting more efficient or just getting bigger.

Most useful ages
25 to 65

01Why it matters

These are the costs that keep running whether or not you sell anything this month, which is why they decide how long a slow quarter can last before it becomes a crisis.

02The math, step by step

Say gross profit is 240,000 dollars and operating expenses are 180,000 dollars, so operating income is 60,000 dollars. If revenue doubles and operating expenses rise only to 220,000 dollars, operating income jumps to 260,000 dollars, because most of that overhead did not double with sales.

Illustrative example. The amounts here are hypothetical, chosen to show how the math works, not real quoted rates or figures.

03What this is NOT

Do not confuse with Cost of goods sold

COGS is the cost of the product itself. Operating expenses are the cost of the company around the product. The salary of a factory worker building units is usually COGS. The salary of the recruiter who hired that worker is an operating expense. The split is what makes gross margin meaningful.

04Receipts

Every figure on this page is sourced to a primary document. Tap to open the original.

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The Decoderby ClearMoneySchool

Plain-English answers from our glossary. Receipts included. Never advice.

Educational tool. Answers come only from ClearMoneySchool's published glossary and are not advice. Why we never give advice

Last updated August 23, 2026 · Drafted with AI assistance, not yet reviewed by a person