Efficiency Engine
CAC Payback
The ultimate unit economics validator. Measure exactly how many months it takes to recover your customer acquisition costs (CAC).
Growth Metrics
Enter your monthly spend and acquisition numbers.
Capital Velocity
In the subscription economy, CAC Payback is the single most important metric for capital-efficient growth. It determines how fast you can reinvest profits to acquire new customers without external funding.
Reinvestment Rate
Exceptional SaaS companies target < 6 months. Standard healthy growth is 6-12 months for mid-market B2B.
Gross Basis
Always calculate based on Gross Profit, not Revenue. COGS must be factored out to see real payback dynamics.
2026 Benchmarks
| Payback Period | Health Rating |
|---|---|
| < 6 Months | Extraordinary |
| 6-12 Months | Healthy Growth |
| 12-18 Months | Retention Dependent |
| > 18 Months | Capital Intensive |
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