SaaS CAC Payback Period Benchmarks and Formulas
CAC Payback Period measures the number of months required for a subscriber account to generate enough gross profit to fully recover customer acquisition costs. Payback period is the primary metric venture capitalists use to evaluate capital efficiency.
A shorter payback period accelerates cash recycling into sales and marketing, allowing companies to scale rapidly without dilution.
Calculate your CAC payback period in months. Factor in CAC, ARPU, and gross margins.
Open CAC Payback Calculator
Open CAC Payback Calculator
The Margin-Adjusted Payback Formula
To compute true cash recovery time, factor in your SaaS gross margin percentage:
CAC Payback (Months) = CAC / (ARPU x Gross Margin %)
For example, if CAC is $300.00, monthly ARPU is $35.00, and gross margin is 80%:
- Monthly Gross Profit: $35.00 x 0.80 = $28.00
- CAC Payback: $300.00 / $28.00 = 10.7 months
CAC Payback Benchmarks by Market Tier
- SMB SaaS (Under $100 ARPU): Target payback under 12 months. High churn risks require fast payback.
- Mid-Market SaaS ($100 to $1,000 ARPU): Target payback between 12 and 18 months.
- Enterprise SaaS (Over $1,000 ARPU): Target payback between 18 and 24 months. Multi-year commitments offset longer payback periods.
Calculate your company's payback health using our free CAC Payback Calculator.
