Brazil's card market moves more than R$ 3 trillion a year, according to Abecs. Within that volume, whoever controls the payment method captures a relevant share of the value generated in each transaction — and that is exactly where fintechs, retailers and platforms are finding a new revenue source.
From payment method to revenue engine
For a long time, issuing a card was seen as an operational cost, a convenience offered to the customer. That logic has flipped: today the card is a point of recurring revenue capture, because each transaction distributes value among the network, the issuer and the acquirer.
With the rise of Banking as a Service and white label cards, this revenue source is no longer exclusive to traditional banks. Any company with an active base can now take part in the economy generated by its own product.
The role of interchange
Interchange is the main engine of monetization. It represents a percentage of each transaction, paid by the acquirer to the issuer on every approved purchase — and a relevant part of that value stays with whoever issues the card.
The impact of interchange depends on scale and frequency. In high-recurrence businesses such as mobility, delivery and financial services, transaction volume turns a small percentage into consistent, predictable revenue.
Revenue layers beyond interchange
Interchange is the start, not the ceiling. Around it there are other monetization layers that add up as the product matures:
- —Operational fees: withdrawals, card reissuance and one-off services.
- —Credit offerings: products like secured cards increase revenue per customer.
- —Indirect effects: more card usage means more engagement with the platform as a whole.
The network effect: the card as retention
Cards grow stronger with continuous use. Each transaction generates data, habit and presence in the user's financial routine, creating organic transaction growth over time.
In that sense, the card works less as a payment channel and more as a retention tool: the more integrated into the journey, the harder it is for the customer to leave.
Practical cases by sector
Card monetization takes different shapes depending on the business model:
- —Fintechs: monetize via interchange plus additional financial services.
- —Retail: increase purchase frequency and average ticket within their own ecosystem.
- —Logistics and mobility: manage payments to drivers and partners, with operational gains and fraud reduction.
- —Benefits and incentives: distribute resources more efficiently and traceably.
Why it gained traction now
Banking as a Service tore down the barriers that once limited this move: scale, capital and regulatory capacity. With ready-made infrastructure, issuing cards no longer requires the structure of a bank.
What sets apart the companies that monetize well is not issuing the card, but integrating it naturally into the experience and activating the user base. Card monetization, today, is a strategic decision — not a product detail.
