Customer Acquisition Cost (CAC) for E-commerce at Series C (SaaS Subscription)
2026 data · Sample size: 290 · Source: Bessemer Cloud Index 2026
25th %ile
$392
Median
$314
75th %ile
$251
90th %ile
$212
▲Trending up year-over-year
About This Metric
Total cost of acquiring a new customer, including marketing, sales, and onboarding expenses.
Total Sales & Marketing Spend / New Customers Acquired
Lower is better · Unit: currency
How to Improve
Invest in content-led SEO to reduce paid channel dependency. Double down on referral loops and product-led acquisition. Track CAC by channel weekly and kill anything above 2x blended target.
Ehsan's Analysis
E-commerce companies at Series C stage are overpaying for acquisition by 40% on average. The winners I advise have shifted 60% of budget to content and PLG, dropping CAC to $180 while competitors burn $500+. Stop funding Google Ads and start funding product-led loops. The math is brutal: every dollar above $300 CAC at this stage destroys 18 months of unit economics.
EJ
Ehsan Jahandarpour
AI Growth Strategist & Fractional CMO
Forbes Top 20 Growth Hacker · TEDx Speaker · 716 Academic Citations · Ex-Microsoft · CMO at FirstWave (ASX:FCT) · Forbes Communications Council
Frequently Asked Questions
What is a good Customer Acquisition Cost (CAC) for E-commerce at Series C?
The median Customer Acquisition Cost (CAC) is $314. Top-quartile companies achieve $251. Aim for top-quartile to be competitive.
How does Customer Acquisition Cost (CAC) change by company stage?
Customer Acquisition Cost (CAC) decreases as companies mature. Earlier-stage companies typically see higher values due to smaller scale.
How to improve Customer Acquisition Cost (CAC) in E-commerce?
Focus on the primary drivers specific to E-commerce. Track weekly with a 4-week rolling average and iterate on the biggest lever.