Deposits Drive Bank-Fintech BaaS Partnerships

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Fintech investor on how banking-as-a-service platforms build partnerships

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the reason why banks would want to do it is because they want deposits.
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Bank partners do BaaS because fintech deposits turn a local balance sheet into a national one. A community bank that once depended on branch traffic can suddenly gather checking balances from startup customers, gig workers, or SMBs nationwide through a fintech app. Those balances matter because they fund lending and investment activity, and banks often accept a smaller share of interchange in exchange for keeping the deposits and the related balance sheet value.

  • In practice, the fintech owns the app and customer relationship, the BaaS platform handles onboarding, compliance workflow, and APIs, and the bank holds the accounts. The bank may be mostly invisible to the end user, but it keeps the deposits and can put that money to work through loans and securities.
  • This is why sponsor banks like Evolve, Cross River, Sutton, and others became important partners. BaaS gave small and mid sized banks distribution they could not build alone, while giving fintechs a faster path than integrating directly into legacy cores from FIS, Fiserv, or Jack Henry.
  • The economic bargain is simple. Fintechs usually keep the biggest share of interchange because they bring the users and volume, while banks still like the arrangement because deposits can be more valuable than swipe fees. That is especially true when those deposits are treated favorably for funding and liquidity purposes.

Going forward, the winning bank partners will be the ones that can gather deposits without flying blind on risk. That is pushing the market toward deeper bank visibility, better ledgers, and closer bank fintech coordination, so deposit gathering remains the hook, but operating control increasingly decides which partnerships last.