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Operating Loss (OL)

An operating loss is the negative result when a company's operating expenses exceed its revenue from core business activities, before interest and taxes are deducted.

What Is an Operating Loss?

An operating loss occurs when a company's operating expenses are larger than the revenue it earns from its core business activities. It appears on the income statement as a negative operating income figure. Because it is measured before interest and income taxes, it isolates how the main business performs, apart from how the company is financed or taxed.

How It Is Calculated

Operating income is found by subtracting operating expenses from operating revenue:

Operating Income = Operating Revenue - Operating Expenses

If the result is below zero, the company has an operating loss. Operating expenses typically include cost of goods sold, selling, general and administrative costs, research and development, and depreciation. Some companies first report gross profit, which is revenue minus cost of goods sold, and then subtract the remaining operating costs.

Why It Matters to Investors

An operating loss signals that the core business is not currently covering its day-to-day costs. Investors often compare it with other figures to judge whether the loss is temporary, such as during a product launch or downturn, or persistent. A company may report a net loss or a net profit depending on items outside operations, such as interest expense, investment gains, or tax effects, so the operating line is only one part of the picture.

Operating losses are common among young companies that spend heavily to grow, and they can persist for years while a business scales. In other cases, they indicate that a business model is not yet working as planned.

Limitations of the Measure

Operating income can be affected by how a company classifies its expenses, and some companies present adjusted figures that exclude certain costs. Reviewing the full income statement and the accompanying notes helps readers understand what is included. An operating loss also differs from a net operating loss, which is a separate concept used in tax calculations.

Updated November 7, 2026. For general education only; not financial, tax or legal advice.

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Related Terms

Operating Expense (OpEx)

An operating expense is a cost a business incurs through its normal day-to-day activities to keep running, such as rent, salaries, utilities, and marketing, but not the direct cost of making goods.

Income Statement

An income statement is a financial report that summarizes a company's revenues, expenses, and resulting profit or loss over a specific period, such as a quarter or year.

Operating Income

Operating income is the profit a company earns from its core business activities after paying operating costs, but before interest and income taxes are deducted.

Cost of Goods Sold (COGS)

Cost of goods sold is the total direct cost a company incurs to produce or purchase the goods it sold during a period, such as materials, labor, and manufacturing overhead.

Gross Profit

Gross profit is the amount of revenue a company keeps after subtracting the direct costs of producing the goods or services it sells, before operating expenses, interest, and taxes are deducted.

Net Loss

A net loss occurs when a company's total expenses, taxes and other costs exceed its total revenue over a reporting period, leaving it with a negative bottom line.

Net Operating Loss (NOL)

A net operating loss (NOL) is the amount by which a company's tax-deductible expenses exceed its taxable income in a year, which can be used to reduce taxable income in other years.

Operating Margin

Operating margin is the percentage of a company's revenue left after paying for its operating costs, such as wages, materials and depreciation, but before interest and taxes.