Customer Acquisition Cost & Payback Period Calculator
Calculate blended CAC, customer payback period in months, and evaluate acquisition efficiency against SaaS and eCommerce benchmarks.
Calculation Formula
How to Use the Customer Acquisition Cost & Payback Period Calculator
- 1 Enter Total Sales & Marketing Spend for the chosen period (ad spend, agency fees, tool costs).
- 2 Enter Total New Customers Acquired during that same period.
- 3 Enter Average Monthly Gross Profit per Customer to calculate the exact CAC Payback Period.
Methodology & Algorithmic Standards
Calculates CAC = Total Marketing Spend / New Customers Acquired. Computes Payback Period (Months) = CAC / Monthly Gross Profit per Customer, and classifies health against industry standards (<12 mo excellent, 12 to 18 mo sustainable, >18 mo high risk).
Frequently Asked Questions
What is a good CAC payback period? ▼
For B2B SaaS, under 12 months is considered healthy and capital-efficient. For eCommerce and direct-to-consumer, under 3 to 6 months is preferred.
Should I include marketing salaries in CAC? ▼
Yes. Fully loaded CAC includes ad spend plus software tooling and team compensation for complete fiscal accuracy.
Can I transfer this financial model to Olevx Notepad? ▼
Yes. Click "Open in Notepad" to create a structured markdown summary ready for investor updates or team reviews.
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