Customer Acquisition Cost (CAC)

Customer Acquisition Cost, commonly abbreviated as CAC, measures the average cost incurred to acquire a new customer over a specified period. The calculation typically includes marketing expenditure, sales costs, advertising, promotional activities, technology platforms, agency fees, and other acquisition-related expenses divided by the number of new customers obtained during the same timeframe.

Although CAC is often presented as a single financial metric, meaningful interpretation requires understanding differences across customer segments, acquisition channels, geographic markets, product categories, and sales cycles. Organizations frequently calculate separate CAC values for organic, paid, referral, enterprise, or consumer acquisition channels because each reflects different commercial dynamics.

Customer Acquisition Cost should always be evaluated alongside customer quality, retention, lifetime value, and profitability rather than in isolation.