CAC Payback Period: Definition, Meaning & Guide for Indian Businesses

CAC payback is the number of months it takes to recover the cost of acquiring a customer. Healthy SaaS: 6-12 months. Above 24 months = struggling unit economics.

What is CAC Payback Period?

CAC Payback = CAC ÷ (monthly ARPU × gross margin %). If CAC = ₹6,000, ARPU = ₹1,000, gross margin = 80%, payback = 6,000 ÷ (1000 × 0.8) = 7.5 months. Sub-12 months = healthy; you can grow on retained earnings. 12-24 months = need external capital. >24 months = unit economics broken. Reduce by: better channel mix (organic > paid), higher ARPU plans, faster onboarding (reduces churn), annual prepay (cash up front).