What is a cost center?

A cost center is an organizational unit or function that incurs costs but does not directly generate revenue, such as administration, IT, or human resources. For professional service firms, cost centers are tracked and managed to control overhead while supporting revenue-generating activities.

Key characteristics

• Incurs costs without direct revenue

• Examples: admin, IT, HR

• Should be tracked separately

• Costs allocated to services or profit centers

• Requires management and control

• Supports revenue-generating activities

Why it matters for professional service firms

Cost centers consume resources that revenue-generating activities must cover. Understanding and managing cost center expenses is essential for profitability. Professional service firms should track cost centers, set appropriate budgets, and ensure costs are controlled while maintaining necessary support functions.

Real-world example

Rachel's firm tracked all expenses together without cost center visibility. Implementing cost centers: Administration, Technology, Facilities, Marketing, and Professional Development are defined as cost centers with assigned budgets. Monthly reporting showed spending by cost center. Insight: Technology costs had grown 45% over 2 years without a formal review; the audit revealed unused software subscriptions ($18K annually) and consolidation opportunities. Cost center visibility enabled targeted cost management without across-the-board cuts.