Methodology

What is real

Published list prices for Stripe Tax (0.50% per transaction, capped at $0.50) and Radar ($0.07 per screened transaction), as of 2026-09-21.
The arithmetic. Every formula on screen is declared once and tested against the calculation engine, and the engine is tested against worked examples.

The customer profile: $500M of annual volume, a $20 average ticket, a 92% settle rate.
The bundle prices, which are a proposal and not a Stripe offer.
Account counts, take-up rates, win rates, and cost to serve. Each is labeled as an estimate where it appears.

Payments processing and network costs are held constant. The model shows add-on revenue, so it cannot show a bundle discount being traded against the processing rate. It does restate the discount as a processing-rate equivalent in basis points.
Tiered volume commitments and ramp schedules inside a deal. The quarterly view phases adoption across accounts.
Usage or credit-based pricing, and repricing of existing customers.
Lifetime value is contribution margin divided by churn. It uses one constant churn rate, leaves out expansion revenue, and does not discount future dollars.
Each segment is given one customer profile. Real segments have a distribution of volumes and tickets.

Portfolio project by Chris Mongeon. Not affiliated with Stripe.