Definition
An operating expense (OpEx) is any cost incurred in the normal course of running a business’s day-to-day operations. These are the recurring expenses required to keep the business functioning, as opposed to capital expenditures, which involve buying or improving long-term assets.
Examples of Operating Expenses
Common operating expenses include employee salaries and wages, rent and utilities, insurance premiums, marketing and advertising costs, office supplies, software subscriptions, professional services such as accounting and legal fees, maintenance and repairs, and depreciation on existing assets.
OpEx vs CapEx: Key Differences
From an accounting perspective, operating expenses are recognised on the profit and loss statement in the period they are incurred. This is different from capital expenditure, which is capitalised on the balance sheet and gradually expensed through depreciation or amortisation over the useful life of the asset.
The distinction between OpEx and CapEx has tax implications. Operating expenses are generally fully deductible in the year they are incurred, reducing taxable income for that period. Capital expenditure is deducted over multiple years through depreciation claims.
Fixed, Variable, and Semi-Variable Operating Expenses
Managing operating expenses is a core part of financial management. Fixed operating expenses remain constant regardless of sales volume, such as a monthly lease payment. Variable operating expenses fluctuate with business activity, such as packaging materials or delivery costs. Semi-variable expenses have both a fixed component and a variable component, such as a mobile phone plan with a base charge plus usage fees.
Reviewing Operating Expenses for Margin Improvement
A common financial exercise is to categorise every operating expense as either value-adding (directly contributing to revenue or customer satisfaction) or non-value-adding (overhead that persists regardless of output). Businesses looking to improve margins often start by reviewing the non-value-adding category for cuts or renegotiation opportunities.