Fintech Unit Economics Tracker: CAC, Payback, and Margin

Headline metrics

Blended CAC decreased by 9%, but payback period remains above target in low-activity cohorts. Contribution margin improved in high-frequency users.

Interpretation

  • Acquisition efficiency gains are not yet mirrored in activation quality.
  • Revenue concentration risk remains high in top 15% of users.
  • Support cost per active user declines significantly after month 2.

Strategic focus

Rebalance spend toward channels with superior month-2 activity rather than lowest top-of-funnel cost.