The "3:1 is healthy" rule of thumb for LTV:CAC is a useful starting point, but optimal ratios vary significantly by business model, go-to-market motion, and stage.
Benchmarks by GTM motion
| Model | LTV:CAC target | Payback period | Why |
|---|---|---|---|
| PLG / self-serve | 5:1–10:1 | < 6 months | Low CAC (users self-educate); churn must be very low |
| SMB sales-assisted | 3:1–5:1 | 12–18 months | Higher CAC from sales touch; higher churn |
| Mid-market | 4:1–6:1 | 9–15 months | Balance of sales cost and lower churn |
| Enterprise | 6:1–10:1 | 18–24 months | Very long sales cycles justified by very low churn |
What top-quartile companies look like
According to Bessemer Venture Partners benchmarks: - Top-quartile PLG companies: LTV:CAC of 8:1+, payback under 6 months - Top-quartile enterprise: LTV:CAC of 10:1+, payback under 18 months - Median public SaaS at IPO: LTV:CAC of 4:1–6:1
The problem with benchmarking early-stage companies
LTV:CAC is most meaningful above $1M ARR. Before that, sample sizes are too small and CAC can be artificially low (founder-led sales) or high (early experimentation). Focus on trend direction: is your LTV increasing and CAC decreasing over time?