What is cost center allocation?

Cost center allocation is the process of distributing cost center expenses to revenue-generating units, services, or clients to understand fully loaded costs. For professional service firms, allocation enables accurate profitability analysis by ensuring overhead costs are appropriately assigned.

Key characteristics

• Distributes overhead to revenue units

• Multiple allocation methods are available

• Enables full cost visibility

• Affects profitability reporting

• Should use appropriate drivers

• Balance accuracy with complexity

Why it matters for professional service firms

Direct costs alone do not tell the full story. Overhead must be allocated to understand true service and client profitability. Professional service firms should implement allocation methods that reasonably assign costs to services and clients, enabling meaningful profitability analysis.

Real-world example

Brian knew direct costs by service but did not allocate overhead. Implementing cost center allocation: Technology allocated based on headcount in each service line, Facilities based on space occupied, Administration based on revenue percentage, and Marketing based on revenue percentage. Fully loaded profitability revealed: Service Line A had 28% margin (previously thought 35%), Service Line B had 22% margin (previously 32%), while Service Line C, with dedicated admin support, showed only 12% margin—allocation exposed true economics previously hidden.