Customer Acquisition Cost (CAC) is the average amount a business spends to acquire a new customer. It includes all marketing and sales expenses associated with generating new business, such as advertising, SEO, PPC campaigns, content marketing, sales salaries, software, and other customer acquisition costs.
CAC is one of the most important metrics for measuring marketing efficiency and profitability. By comparing CAC to Lifetime Value (LTV), businesses can determine whether their customer acquisition efforts are sustainable. In many industries, an LTV ratio of at least 3:1 is considered a healthy benchmark, though the ideal ratio depends on the business model and market.
The basic formula for calculating CAC is:
CAC = Total Sales and Marketing Costs ÷ Number of New Customers Acquired
Reducing CAC can improve profitability by making marketing campaigns more efficient, increasing conversion rates, improving lead quality, and optimizing the customer journey.
Example: A company spends $12,000 on marketing and sales in one month and acquires 40 new customers. Its CAC is $300 per customer ($12,000 ÷ 40).