Customer Acquisition Cost (CAC)

Customer Acquisition Cost (CAC) represents the total expense required to convince a potential lead to become a customer. It is a key performance indicator used to evaluate the efficiency and profitability of a company's sales and marketing efforts. To calculate CAC, all associated costs—from ad campaigns and content creation to sales team salaries and software licenses—are summed up and then divided by the number of new customers acquired during that same time frame.

This metric is essential for strategic decision-making, helping leaders determine the viability of their business model and the effectiveness of different acquisition channels. By tracking CAC, organizations can optimize their spending, improve marketing ROI, and ensure their go-to-market planning is both scalable and sustainable. It is a core component of SaaS and subscription business financial models, often tracked as part of a company's overall operating expenses (OPEX).

A healthy business model is often defined by the relationship between CAC and Customer Lifetime Value (CLV / LTV). The LTV:CAC ratio helps companies understand the return on their acquisition investment, with a common benchmark suggesting the LTV should be at least three times the CAC for a profitable venture.