A fixed cost is a business expense that generally does not change directly with short-term sales volume or the number of meals served. Restaurants incur fixed costs to keep the business operating, even when guest counts are low. Fixed costs may still change over time or when the business changes its capacity or contract commitments.
Variable costs change with activity or sales volume. Food ingredients, some packaging and certain transaction fees are common examples. Fixed costs remain broadly stable within a relevant period and operating range. Some expenses are mixed: utilities may include a fixed service charge plus usage-based costs.
Understanding fixed costs helps restaurant owners calculate break-even sales, assess capacity and plan for slow periods. When sales fall, fixed expenses do not automatically fall with them, so the amount of revenue available to cover rent, salaries and other commitments becomes especially important.
If a restaurant has $20,000 in monthly fixed costs, it must generate enough contribution from sales to cover that amount before it can earn an operating profit. The required sales level also depends on variable costs and the contribution margin; fixed costs alone do not determine break-even revenue.
A cost may be fixed only within a particular range. Adding another management position or leasing more space can create a step-fixed cost. Utilities and some service contracts may be semi-variable, combining a fixed base with a variable component.
Chef’s tip: Separate fixed, variable and mixed costs in the restaurant’s budget. Review contracts and staffing commitments regularly, but avoid treating every salary or utility expense as permanently fixed in every business situation.
This term is one of hundreds covered in depth across OCS courses, learning paths, and 1-on-1 coaching with Chef Eric.
