Plain definition
Operating expenses are costs of running the business that are not directly included in the cost of goods sold, such as selling, administration, rent, payroll, utilities, and professional services. The category supports analysis of the resources required to operate, but classification should follow the business model and accounting policy rather than a desire to improve gross margin.
Illustrative example
Monetary examples use Saudi riyals (SAR). The same principles apply in other currencies.
A company has gross profit in June and incurs sales payroll, office payroll, rent, and software expense. Operating expenses total , leaving operating profit before financing and tax effects. The manager can now ask which cost driver grew and whether it generated additional sales.
Some costs are variable, some fixed, and some may belong in inventory or capital expenditure under the applicable policy. A department name alone does not determine classification.
Why it matters
Grouping costs carelessly can hide overhead growth or make product margins incomparable. A company may cut a small visible expense while ignoring the payroll or rent commitment that actually drives the cash burn.
Practical consequence
Use a chart of accounts linked to accountable cost owners and a monthly variance review. Separate recurring costs from one-offs, explain changes by volume, rate, or new activity, and tie major contracts to approval and cash commitments. Review allocations periodically so they reflect the service received rather than last year’s spreadsheet.