What are operating expenses?

The ongoing costs of running a business day to day — salaries, rent, utilities, and most marketing — expensed in full in the period they occur, as opposed to capitalized capital expenditures.

Is marketing OpEx or CapEx?

Almost all marketing is OpEx — expensed immediately against the current period's operating profit, which is why marketing efficiency is scrutinized so closely.

Where do operating expenses sit on the income statement?

Below gross profit and above operating income, so they directly determine how much profit the business generates from its operations.

Growth Marketing Glossary

Operating Expenses (OpEx)

op·er·at·ing ex·pen·sesnoun

The cost of keeping the lights on - salaries, rent, and most marketing, expensed in full each period. Nearly all marketing spend is OpEx.

Schematic — day-to-day running costs

Term: Operating expenses (OpEx)
Are: Day-to-day running costs
Examples: Salaries, rent, utilities, most marketing
Versus CapEx: Expensed now, not capitalized

Forms & parts of speech

OpEx · noun

Day-to-day operating costs.

"Marketing is OpEx - it hits operating profit in full the moment we spend it, which is why its efficiency gets scrutinized so hard."

Definition in plain terms

Operating expenses, or OpEx, are the ongoing costs a business incurs in its normal day-to-day operations. They include salaries and wages, rent, utilities, software subscriptions, and the great majority of marketing spend.

The defining feature of OpEx is that it's expensed in full in the period it occurs - it reduces that period's operating profit directly. This contrasts with capital expenditures (CapEx), which buy long-lived assets that are capitalized on the balance sheet and depreciated over many years.

On the income statement, operating expenses sit below gross profit and above operating income, so they're a primary determinant of how much profit the business actually generates from its operations.

Why it matters to growth leaders

Operating expenses are where a growth leader's budget lives, which makes the concept directly consequential. Because nearly all marketing spend is OpEx, every marketing dollar reduces the current period's operating profit in full and immediately

there's no spreading it over future periods the way a capitalized asset would be. This is precisely why marketing efficiency is scrutinized so intensely: the spend is a visible, immediate hit to operating income that has to justify itself by generating more value than it costs.

Understanding that marketing is OpEx clarifies why finance teams treat it the way they do, and why metrics like payback period and contribution margin matter so much - they show whether an immediate operating expense is buying durable value.

For a growth leader, framing marketing in terms of its effect on operating expenses and operating income is the language that connects growth work to how the business is actually judged.

Worked example. A growth leader requesting a larger marketing budget meets resistance from finance and, understanding operating expenses, sees exactly why.

Marketing is OpEx - an operating expense expensed in full in the period it's spent, sitting below gross profit and above operating income on the income statement.

So every dollar of marketing reduces the current period's operating profit immediately and completely, with no spreading over future periods the way a capitalized asset would be.

That's why finance scrutinizes marketing efficiency so hard: the spend is a direct, visible hit to operating income that must justify itself by returning more than it costs.

Rather than framing the budget request as a vague growth investment, the growth leader reframes it in the language finance uses - the operating expense will generate contribution margin and pay back within a defined period, improving operating income over time.

By connecting marketing to its effect on operating expenses and operating profit, the leader makes the case in terms the business is actually run on, turning a budget fight into a shared analysis of whether the immediate operating cost buys durable value.

Failure modes to watch. Forgetting that marketing OpEx hits operating profit immediately and in full; confusing OpEx (expensed now) with CapEx (capitalized over years); treating marketing spend as separate from how operating income is judged; and failing to justify operating expenses in terms of the value they generate.

Synonyms & antonyms

Synonyms

operating expensesOpExoperating costs

Antonyms

capital expenditureCapEx

Origin & history

Operating expenses capture the recurring cost of running a business, distinct from the capitalized investment of CapEx; expensed in the period incurred, OpEx - including most marketing - directly shapes operating income on the income statement.

Etymology: source.

Usage trends

Search interest for this term over the last five years:

View interest-over-time on Google Trends →

Common questions

What are operating expenses?: The ongoing costs of running a business day to day — salaries, rent, utilities, and most marketing — expensed in full in the period they occur, as opposed to capitalized capital expenditures.
Is marketing OpEx or CapEx?: Almost all marketing is OpEx — expensed immediately against the current period's operating profit, which is why marketing efficiency is scrutinized so closely.
Where do operating expenses sit on the income statement?: Below gross profit and above operating income, so they directly determine how much profit the business generates from its operations.

Related tools & calculators

toolLTV:CAC calculator
toolCAC payback calculator

Resources & people to follow

referenceWikipedia — operating expense
referenceAccounting and growth-finance practice
referenceRGM analysis — marketing OpEx hits operating profit immediately; frame budgets by their effect on operating income, the language finance uses

Curated, non-competitor resources verified per term.

Related training

moduleGrowth marketing foundations

Disciplines

Areas of marketing where operating expenses (opex) is a core concern:

Growth strategyMarketing analytics

Sources

trendsGoogle Trends — "operating expenses opex"