How financial institutions can enable interoperable QR payments in Argentina

Key Takeaways

• Argentina has a well-established interoperable QR payment system, allowing consumers to pay merchants across participating banks, wallets, and payment schemes using a single QR infrastructure.
• This interoperability is domestic by design, so financial institutions outside Argentina need a cross-border connection to enable their customers to pay local QR codes.
• RoamingPay provides that connection, allowing customers to pay Argentine QR codes through their existing banking or wallet app while merchants continue using their existing QR infrastructure.
• For financial institutions, enabling local payment methods abroad helps keep customers and payment activity within their own environment, creating opportunities for greater engagement, international transaction volume, and revenue.

Argentina has built one of Latin America’s most established interoperable QR payment environments. According to the Banco Central de la República Argentina (BCRA), by December 2025, interoperable QR payments reached 95 million transactions in a single month, up 51.9% year over year, while their total value reached ARS 2.2 trillion, representing 57.9% year-over-year growth in real terms.

That momentum has continued into 2026. By June, interoperable QR payments reached 108.2 million transactions in a single month, up 75.4% year over year, while their total value reached ARS 2.6 trillion, representing 67.4% year-over-year growth in real terms, according to the BCRA.

Behind that scale is Transferencias 3.0 (Transfers 3.0), the BCRA framework that established the rules allowing Argentina’s existing payment schemes and infrastructure to become interoperable. Within Argentina, interoperability means that consumers can use a compatible participating banking or wallet app to scan an interoperable merchant QR, regardless of the QR provider.

But there is an important limit to Argentina’s interoperability: it was built to connect participants within the country’s domestic payment infrastructure. A customer whose bank or digital wallet operates in another country cannot use that app to pay the same QR code when visiting Argentina.

Extending this access to customers of financial institutions outside Argentina requires a way to connect their existing banking or wallet apps to the local payment infrastructure. To understand how this can become a reality, we’ll look at how Argentina’s interoperable QR system operates, why foreign financial institutions cannot access it directly, and ultimately, what it takes to enable interoperability across borders.

How do interoperable QR payments work in Argentina?

Argentina’s interoperable QR payment system is built around Pago con Transferencia (PCT) (Payment by Transfer), an account-to-account (A2A) payment method that allows that allows funds to move directly between bank and payment accounts. QR codes have become the primary way these payments are initiated, providing a simple way to pay both individuals and businesses.

To understand how this experience works across different banks, wallets, and payment schemes, it is useful to start with what happens behind the QR when a customer makes a Pago con Transferencia.

Pago con Transferencia: the payment behind the QR

PCT enables immediate account-to-account payments and transfers within Argentina’s payment system, including payments for goods and services. These transactions can originate from bank accounts, identified by a Clave Bancaria Uniforme (CBU) (Uniform Banking Code), or payment accounts, identified by a Clave Virtual Uniforme (CVU) (Uniform Virtual Code).

When PCT is used to pay a merchant through QR, the customer scans the merchant’s code using a compatible banking or wallet app and authorizes the payment from their account. The transaction is then processed through Argentina’s immediate payment infrastructure, allowing the merchant to receive the funds directly into its account.

This account-to-account infrastructure is what sits behind the QR payment experience. But PCT alone does not explain how payments can work across different participants in Argentina’s payment system. That is where interoperability comes in.

How QR interoperability works

With interoperability, a merchant’s QR is not restricted to customers using a particular participating bank or wallet. A single interoperable QR can be recognized across participating payment schemes, giving consumers the flexibility to pay through a compatible banking or wallet app.

For merchants, this means they can accept payments originating from different participating accounts and apps through the same QR infrastructure, rather than relying on separate QR codes tied to individual providers.

In Argentina, this interoperable model took shape through Transferencias 3.0, a framework established by the BCRA. In a market that already had widely adopted private QR code networks, Transferencias 3.0 introduced rules requiring these existing systems to interoperate. Full QR interoperability came into effect in November 2021.

There is, however, an important boundary to this interoperability. Transferencias 3.0 only connects participants within Argentina’s domestic payment system. A bank or digital wallet outside Argentina that wants to enable its customers to pay QR codes in the country is not automatically connected to the local payment infrastructure simply because the QR itself is interoperable.

Why can’t foreign financial institutions simply connect to Argentina’s interoperable QR system?

Argentina’s QR interoperability depends on connections between banks, wallets, payment schemes, and other participants operating within the country’s domestic payment infrastructure. Transferencias 3.0 created the framework for these participants to interact, but those connections do not automatically extend to financial institutions operating outside Argentina.

This becomes clearer when looking at what happens beyond the QR itself. Scanning the code provides the information needed to initiate the payment, but completing the transaction also requires that information to be exchanged with the relevant participants, the payment to be routed through the local system, and the funds to reach the merchant’s account in Argentina. This process relies on domestic account infrastructure, payment schemes, messaging, and clearing, including entities such as COELSA, one of Argentina’s clearing houses.

A foreign financial institution sits outside these existing connections. Enabling its customers to pay Argentine QR codes therefore requires more than making the QR readable from its app. The institution needs a way to connect a payment originating in its own financial environment with the domestic infrastructure required to complete it locally in Argentina.

Bridging those two payment environments is what makes cross-border interoperability possible.

How can customers pay Argentine QR codes from a foreign banking or wallet app?

Making that connection requires technology that can link the foreign financial institution to Argentina’s local payment system without changing how either side operates. RoamingPay by PagBrasil provides this connection, enabling banks and digital wallets outside Argentina to give their customers access to Argentine QR payments through their existing apps.

For the customer, that connection translates into a simple payment experience. First, they scan the Argentine merchant’s existing QR code from their participating bank or wallet app.

RoamingPay then enables the necessary currency conversion to happen behind the scenes, allowing the customer to see the amount in their own currency before authorizing the payment. Once confirmed, the transaction is completed through Argentina’s local payment infrastructure, and the merchant receives the funds in Argentine pesos in real time.

For a step-by-step look at how a RoamingPay transaction works from initiation through settlement, see our complete guide to RoamingPay.

This means neither side needs to adopt the other market’s payment experience. The customer can pay through the banking or wallet app they already use, without opening an Argentine account or using a local wallet. The merchant continues accepting payments through the same interoperable QR infrastructure and receiving funds locally in pesos.

The result is a cross-border payment experience that builds on the infrastructure already established in each market.

What does a financial institution need to enable QR payments in Argentina?

For financial institutions outside of Argentina, enabling Argentine QR payments means establishing the infrastructure required to take a transaction initiated within its own environment and complete it through Argentina’s domestic payment system. Without an interoperability partner, that means addressing multiple layers of cross-border connectivity, including transaction routing, foreign exchange, and local settlement.

RoamingPay changes the scope of that implementation. Rather than building separate connections to the different components required to complete the payment locally, the financial institution integrates with a single interoperability layer that manages the connection to the Argentine payment environment.

With RoamingPay handling the infrastructure required to connect to Argentina’s payment system, the institution can focus on bringing that capability into its own banking or wallet experience and keeping customers within its app even when they pay abroad.

Importantly, the integration is not limited to Argentina. RoamingPay is designed to connect financial institutions to supported domestic payment systems across multiple markets (such as Pix in Brazil) through the same integration. As the institution expands the destinations where it wants to offer local payment capabilities, it can access them through that same integration rather than approaching each market as an entirely separate infrastructure project.

What is the business opportunity for financial institutions?

Argentina attracts travelers from markets both within and beyond Latin America. Among international tourists arriving through Buenos Aires’ two main airports in the first quarter of 2026, 27.8% came from Europe, 21.7% from the United States and Canada, and 17.2% from Brazil, according to the Instituto Nacional de Estadística y Censos (INDEC) (National Institute of Statistics and Censuses).

For the financial institutions serving these travelers, this creates an opportunity to remain central to the payment experience while their customers are abroad. Convenience plays an important role in how people choose to pay. So, when a traveler encounters QR codes throughout Argentina, they will look for a simple way to use them — especially if they already pay via QR at home. If their primary financial institution does not provide that access, they may turn to an alternative wallet or financial provider that does, alongside other options such as international cards or cash.

By giving customers the ability to pay QR codes in Argentina through the banking or wallet app they already use, financial institutions can remain the primary interface for the payment rather than requiring customers to look elsewhere for a way to pay.

Keeping these transactions within their own environment can generate additional international payment volume while maintaining visibility into customers’ activity abroad. Depending on the institution’s commercial model, these transactions can also create revenue through foreign exchange margins and other services associated with international spending, such as loyalty programs and travel insurance.

The opportunity also extends beyond an individual trip or destination. As financial institutions enable their customers to access instant payment systems across more markets, their apps can remain relevant for a greater share of customers’ everyday financial activity abroad — turning cross-border interoperability into an extension of the institution’s existing payment proposition.

From domestic interoperability to cross-border access

Argentina has already built the infrastructure for banks, wallets, and payment schemes to work together through interoperable QR payments. But as we’ve seen, that interoperability was designed to operate within the country’s domestic payment environment.

RoamingPay extends that model across borders by providing the connection between foreign financial institutions and local payment infrastructure. This allows institutions to give their customers access to payment methods such as Argentina’s interoperable QR through the banking and wallet apps they already use, while merchants continue operating within their existing local payment environment.

As more countries develop their own instant payment systems, connecting these domestic infrastructures creates the potential for payments that already work well locally to become accessible internationally. For financial institutions, the result is tangible: more international transaction volume, greater revenue potential, and a stronger role in how customers pay when they travel.

Talk to a PagBrasil specialist about enabling your customers to pay interoperable QR codes in Argentina and beyond with RoamingPay.

Frequently asked questions about QR payments in Argentina