What is CAC (Customer Acquisition Cost)?

Customer Acquisition Cost (CAC) is the total cost — including sales salaries, marketing spend, software costs, and overhead — required to acquire a single new customer. CAC is calculated by dividing total sales and marketing spend in a period by the number of new customers acquired in that same period. CAC efficiency is measured by comparing it to Customer Lifetime Value (LTV) — a healthy LTV:CAC ratio is typically 3:1 or higher for B2B SaaS. Reducing CAC requires either reducing sales and marketing costs or increasing the conversion rates at each stage of the acquisition funnel.

CAC (Customer Acquisition Cost) is a critical concept for any B2B revenue team because it directly impacts pipeline predictability and revenue growth. Without a clear understanding of CAC (Customer Acquisition Cost), teams often make decisions based on incomplete information or misaligned frameworks — leading to poor forecasting, wasted outreach effort, and missed quota. DevCommX incorporates CAC (Customer Acquisition Cost) thinking into every Revenue Operations engagement we run.

CAC (Customer Acquisition Cost) is closely connected to LTV (Customer Lifetime Value) and ACV (Annual Contract Value), and several other core GTM concepts. In the context of GTM Engineering, CAC (Customer Acquisition Cost) typically informs how revenue systems are designed, what data is tracked, and how performance is measured. Modern GTM Engineers treat CAC (Customer Acquisition Cost) as a quantifiable lever — not just a concept — building automation and reporting that makes it visible and actionable.