How to Calculate Customer Acquisition Cost (CAC) Step-by-Step for Small Businesses (2026)
Introduction: If You Don’t Know Your CAC, You’re Guessing Most small businesses track: 👉 Leads 👉 Traffic 👉 Ad spend But very few can answer this simple question: 👉 “How much does it actually cost to acquire a customer?” That number is your: 👉 Customer Acquisition Cost (CAC) And if you’re not calculating it correctly: ❌ You don’t know if your marketing is profitable ❌ You don’t know which channels are working ❌ You can’t scale with confidence 🔷 What Is Customer Acquisition Cost (CAC)? Customer Acquisition Cost (CAC) is: 👉 The total cost required to acquire one new customer 📌 The Basic Formula: CAC = Total Marketing + Sales Costs ÷ Number of New Customers Example: Marketing spend = $5,000 Sales costs = $3,000 New customers = 20 👉 CAC = $8,000 ÷ 20 = $400 per customer 💡 Key Insight: CAC is not just ad spend—it’s your entire acquisition system To understand why CAC is critical, revisit: Why Customer Acquisition Cost (CAC) Matters More Than Traffic and Leads for Small Businesses (...