Cost Center

A cost center is a department or unit within a business that is held accountable for the costs it incurs but is not expected to generate revenue or profit on its own. Human resources, the accounting department, the IT department, and a factory's maintenance department are typical examples: each spends money and is evaluated on how well it manages that spending, but none of them directly sells anything or produces a measurable profit of its own.

Cost centers are one category within a broader management structure called responsibility accounting, which assigns financial accountability to specific managers based on what they can actually control. A cost center manager is evaluated primarily on whether the department stayed within its budget and operated efficiently, using tools such as budget variance analysis to compare actual spending against what was planned, rather than on any revenue or profit figure, since a cost center manager typically has no control over pricing or sales volume.

A profit center manager, by contrast, is responsible for both revenues and expenses, and is evaluated on the resulting profit, giving that manager more decision-making authority over pricing, product mix, and marketing than a cost center manager typically has. An investment center manager carries even broader responsibility, being evaluated on profit relative to the assets invested in that part of the business, often through a measure such as return on investment. These three categories form an escalating hierarchy of accountability, with a cost center representing the narrowest scope of financial responsibility and an investment center the broadest.

Because cost centers such as factory maintenance or administration exist to support the rest of the business rather than to sell directly to outside customers, their costs are often ultimately allocated to the production departments or products they support, a process central to manufacturing overhead allocation. A factory's maintenance department, for instance, is itself a cost center, but the cost of running it is typically assigned onward to the production departments it services, which in turn assign their total costs, including the allocated maintenance cost, to the units of product actually manufactured.

How a department is classified shapes the incentives of the people running it: a cost center manager focused purely on minimizing spending has every reason to cut costs aggressively, but no built-in incentive to consider whether that cost-cutting harms service quality, sales support, or revenue elsewhere in the business, since those outcomes are outside the cost center's own measured scope. Well-designed management control systems typically pair cost center budgets with separate, qualitative or service-level measures specifically to guard against a cost center manager pursuing cost minimization in a way that quietly damages the rest of the organization.

A retail chain’s head-office human resources department is a classic cost center: it has an annual budget for salaries, recruiting, and training, and its manager is judged on whether spending stayed within that budget and whether the department delivered its services efficiently, not on any revenue figure, since HR does not sell anything to outside customers. Compare that to an individual store within the same chain, which is usually run as a profit center, since the store manager controls both what is spent locally and how much the store actually sells.