Interchange Caps Force Software-Led Strategy
Payhawk
This forces Payhawk to win like a software company, not a high interchange card issuer. In Europe, consumer debit and credit interchange is capped at 0.2% and 0.3%, which means far less spend volume falls through as gross profit than in the U.S., where credit interchange commonly lands in the 1% to 3% range. That makes Payhawk’s control layer, approvals, ERP sync, AP, and procurement modules more important to monetization than the card swipe itself.
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The practical difference is business model mix. A U.S. player like Brex could build a large revenue base around card volume first, then layer software on top. Payhawk and Pleo started in a market where the card alone is less lucrative, so they have had to sell bundled finance workflow software earlier and more aggressively.
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That changes customer behavior too. Payhawk’s bring your own card motion lets it land as the spend control and reconciliation system even when the customer keeps an existing Amex, Visa, or Mastercard program. In Europe, that lower friction software entry point matters more because replacing the card program does not unlock the same revenue upside as in the U.S.
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The numbers show the consequence. Payhawk is at about $100M in estimated revenue, versus roughly $700M for Brex and $150M for Pleo, despite all three living in spend management. Part of that gap reflects geography and scale, but it also reflects that U.S. card economics can fund faster go to market expansion before software revenue fully matures.
The next phase is a deeper shift from card led spend tools into full finance operating systems. In Europe, the winners are likely to be the companies that use cards as the entry point, then make the real money on approvals, policy enforcement, invoice workflows, procurement, travel, and ERP connectivity across many entities and countries.