CAC by Channel Calculator

Calculate CAC per acquisition channel (paid, content, referral, sales-led) to identify the most efficient growth lever. Sources cited below for methodology and benchmarks.

How to Calculate

CAC by channel = (channel marketing spend + allocated sales cost + tools) ÷ new customers from that channel. Allocate sales rep time using attribution tools (HubSpot, Salesforce). Include content production cost in organic CAC. Many companies under-attribute referral (free word-of-mouth) — value the referral customer base at full LTV even if CAC is near zero.

Benchmarks and Context

Median 2024 SaaS CAC by channel (Bessemer): paid $1,500-3,500, organic $500-1,500, referral $300-800, sales-led $2,500-8,000. Enterprise (ACV >$50k) skews higher; SMB lower. The 70/30 organic/paid mix is the gold standard for capital-efficient growth — high organic share signals product-market fit.

Common Mistakes

Common mistakes: (1) Excluding sales cost from sales-led CAC. (2) Forgetting paid CAC compounds with audience saturation. (3) Treating referral as zero-CAC when referral programs have payments. (4) Mis-attributing first-touch vs last-touch — use multi-touch attribution. (5) Calculating monthly when funnel takes 60-90 days.

Last updated May 2026. Sources: OpenView Benchmarks, Bessemer Cloud Index.