Good question.
In the beginning one could only sign up as business owner / … and Curve gave out commercial cards. I believe the idea was to be able to charge a higher interchange fee (because of the commercial card) and charge a lower card fee (0.2% (debit) / 0.3% (credit)) to the underlying consumer cards.
That changed when Curve started issueing consumer cards. Even worse then, having a Curve consumer card and the underlying card being a commercial card, Curve would actually lose around 1% for each transaction. Financial-wise Curve could add a underlying commercial card fee since they really do lose a lot of money there.
Now we don’t know what Curve has to pay for charging an underlying card, but just to give you an idea. Stripe charges 1.4% for all cards and only offer a disagio price, same as Worldline / SixPayment, Mollie,…
Other accquireres, like Adyen (really expensive), Wirecard (RIP), Concardis, First Data, … have an interchange++ payment model.
Meaning:
Interchange fee (what the accquirer has to pay to the card issuer) - variable
- all consumer EU cards are 0.2% for debit and 0.3% for credit (because of the GOOD EU law)
- commercial cards much higher
Acquiring fee
- the profit the accquirer makes, wide range from 0.20% to 1%
Card scheme fees
The card scheme fee is very tricky and not well known.
Visa usually charges 0.04% and Mastercard 0.42%, so yes, thats a BIG difference of 0.38% as a merchant whether your customer pays with Visa or MC.
So the card scheme fee with MC is actually higher than the capped interchange fee, I have no idea why this was not adressed in the EU legislation.
Conclusion:
Unless Curve can become an accquirer itself, they will always lose money with every transcation since they can only charge the interchange fee but have to pay the interchange fee + card scheme fee + accquirer fee. Even if they were an accquirer, they’d still have to pay the card interchange+scheme fees but only receive the interchange fee.
Don’t ask me how this can be financially sustainable, but I don’t think any fintech actually makes money. I remember reading N26 has lost ‘only’ 200 mio € last year.