Average Revenue Per User (ARPU) for E-commerce at Series A
About This Metric
Average monthly or annual revenue generated per active user or account.
Higher is better · Unit: currency
How to Improve
Ehsan's Analysis
E-commerce ARPU should be calculated on a 12-month cohort basis, not per-transaction. A customer who buys once for $80 has an ARPU of $80. A customer who buys 4 times for $50 each has an ARPU of $200. The second customer is 2.5x more valuable despite lower AOV. Yet most e-commerce analytics dashboards prominently display AOV and bury purchase frequency. Amazon Prime members have an annual ARPU of $1,400 versus $600 for non-Prime — a 2.3x difference driven almost entirely by purchase frequency (25 orders/year vs. 14). The e-commerce ARPU playbook: do not try to increase what people spend per order (upsell, cross-sell at checkout). Instead, increase how often they buy (post-purchase emails, replenishment reminders, subscription offers). Dollar-for-dollar, frequency-driven ARPU growth has 4x the lifetime value impact of AOV-driven ARPU growth because it also improves retention.
Ehsan Jahandarpour
AI Growth Strategist & Fractional CMO · Forbes Top 20 Growth Hacker · TEDx Speaker · 716 Academic Citations