BaaS Enables Free-Funded Fintechs
Banking-as-a-Service: The $1T Market to Build the Twilio of Embedded Finance
The real unlock in BaaS is not cheaper banking infrastructure, it is a new business model where the user sees free while the fintech gets paid in the background every time money moves. Robinhood did this in brokerage with order flow. Card fintechs and vertical software do it with interchange and deposit economics, which lets them cut sticker prices to zero, pull down customer acquisition cost, and still make money as usage grows.
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In card programs, the merchant pays the fee, not the cardholder. On a $100 purchase, the merchant may receive about $97, and that pool is split across the network, bank, BaaS layer, and fintech. That is why a fintech can waive upfront fees and still monetize active users.
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The fintech usually keeps the biggest share because it owns the customer relationship and drives the spend. In one expert framing, the fintech can capture roughly 1% to 1.5% on card spend, while the rest is shared with the bank, processor, network, and BaaS platform.
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This works best when finance is embedded inside an existing workflow. A barber app that gives workers instant access to tips and wages, or expense software like Ramp and Brex, uses financial products as a growth loop. Free or cheaper service brings in users, then transaction volume, balances, and cross sell generate revenue later.
Going forward, the biggest winners will be the companies that earn free through real utility, not gimmicks. As BaaS spreads from neobanks into vertical software and embedded finance, more products will hide monetization in the payment flow, then layer on lending, subscriptions, and data products once they control the customer relationship and the money movement.