CAC is customer acquisition cost, the total cost required to acquire a new paying customer.
CAC is customer acquisition cost, the total cost required to acquire a new paying customer. A common calculation is: Total sales and marketing cost ÷ new customers. In digital marketing strategy, this term gives marketers, designers, developers, and business owners a precise way to talk about work that affects visibility, user experience, measurement, and revenue. A strong understanding of CAC prevents teams from optimizing isolated tasks without knowing what business result they are supposed to support. The concept should always be applied with context: who the audience is, what problem they have, what action matters, how success will be measured, and how the work connects to the broader customer journey.
Example of CAC
Example: If a business spends $30,000 on sales and marketing in a month and gains 60 new customers, CAC is $500. That number should be compared against lifetime value, margin, and payback period.
Why CAC matters
It matters because strategy keeps channels from competing with each other. When this concept is clearly defined, the team can connect budget, audience, creative, offer, tracking, and reporting to revenue instead of chasing disconnected metrics.
Related terms
LTV, CPL, CPA, ROAS, ROI
Frequently Asked Question
What does CAC mean?
CAC means customer acquisition cost, the total cost required to acquire a new paying customer. It matters in digital marketing strategy because it helps teams make clearer decisions, measure the right outcomes, and connect marketing work to business goals.