Magic Number for FinTech at Seed
2026 data · Sample size: 382 · Source: Mixpanel Product Benchmarks 2025
About This Metric
Sales efficiency metric. Revenue growth per dollar of sales and marketing spend. Above 0.75 means accelerate spending.
Higher is better · Unit: ratio
How to Improve
Ehsan's Analysis
The Magic Number is rarely calculated for FinTech because revenue attribution is complex — is a new customer's interchange revenue "new ARR"? What about interest income on their deposit? The FinTech-adapted Magic Number: (incremental quarterly gross profit from new customers) ÷ (prior quarter sales & marketing spend). Using gross profit instead of revenue accounts for the widely varying margin profiles across FinTech products. By this measure, most neobanks have a magic number of 0.2-0.4 (expensive acquisition, thin margins), while embedded FinTech companies (Stripe, Plaid) achieve 0.8-1.2 because merchant revenue scales with zero marginal acquisition cost once integrated. The FinTech magic number improves dramatically at scale — fixed compliance and infrastructure costs get amortized over more customers. A FinTech at $10M revenue might have a 0.3 magic number that improves to 0.8 at $50M revenue purely from scale economics, not improved efficiency. Factor your growth curve into magic number projections.
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