What is Operating Expense (OpEx)?
A cost incurred in running the day-to-day operations of a business that is not directly tied to producing goods or services.
Definition
Operating expenses (OpEx) are the costs a business incurs through its normal day-to-day operations that are not directly tied to producing goods or services. They are deducted from gross profit to arrive at operating profit (EBIT). Operating expenses include rent, utilities, administrative costs, selling and marketing expenses, professional services, and general overhead. They are the costs of keeping the business running regardless of how much revenue is generated.
Common Operating Expenses for Freelancers
Freelancers typically incur: office rent or home office deduction (a portion of housing costs); utilities and internet; software and subscriptions (accounting, design, project management tools); professional services (accountant, bookkeeper, lawyer); business insurance (liability, health); marketing and advertising (website, SEO, paid ads); office supplies and equipment repairs; professional development and training; and travel expenses for business purposes.
Operating Expenses vs. Cost of Goods Sold
COGS (Cost of Goods Sold) is directly tied to producing specific goods or services — materials, direct labor, and costs directly attributable to each client project. Operating expenses are the costs of running the business as a whole — overhead. COGS is subtracted from revenue to get gross profit; operating expenses are then subtracted from gross profit to get operating profit. The key test: if the cost disappears when you have no clients, it is probably COGS; if it continues regardless of client volume, it is OpEx.
Operating Expenses vs. Capital Expenses
Operating expenses are fully deducted in the year they are incurred. Capital expenses (CapEx) are long-term investments in assets with useful lives beyond one year — such as purchasing a computer, camera, or vehicle. CapEx is capitalized (recorded as an asset) and depreciated over its useful life rather than expensed immediately. For freelancers, the distinction matters: a $3,000 laptop may be a CapEx (depreciated over 3–5 years) OR fully expensed in the year of purchase under Section 179. Understanding this distinction affects your taxable income in each year.
Managing Operating Expenses
Controlling operating expenses improves net profit without needing to increase revenue. Conduct annual audits of all subscriptions — cancel what is unused. Negotiate annual vs. monthly billing for software (annual is almost always cheaper). Use freelancers and contractors rather than hiring employees to keep fixed costs variable. Outsource administrative tasks when your time is more valuable spent on billable client work. Track OpEx monthly through your bookkeeping system to identify unexpected cost increases early.