The Border Is Still There. The Payment Isn't: ASEAN’s Experiment in Borderless Payments
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| Isometric visualization of Southeast Asia's interconnected QR payment systems enabling instant regional liquidity without a shared currency. |
For decades, the standard blueprint for regional economic integration was built around convergence.
Countries harmonised rules.
Institutions became more closely integrated.
And, in Europe's most ambitious example, currencies were eventually brought together under a single monetary system.
Southeast Asia is experimenting with something different.
Across ASEAN, national payment systems are increasingly being connected rather than replaced. Domestic fast-payment systems and QR standards remain under national control, while central banks and payment operators build bridges between them. By the end of 2025, ASEAN had formed 29 bilateral payment connectivity arrangements, up from 18 in January of the same year. [1]
The change is easy to miss because the infrastructure largely disappears from view.
A Malaysian traveller can use a domestic banking application to pay a merchant in Thailand. An Indonesian visitor can use QRIS with participating merchants abroad. A Cambodian traveller can pay a Malaysian merchant by scanning DuitNow QR. The user does not need to understand which payment switch is talking to which central bank. The complexity sits underneath the transaction.
It may therefore be useful to think of this as a kind of digital Schengen Zone for ASEAN — not because the region has created a single payment system, but because it is making national payment systems increasingly invisible to the user at the point of transaction.
The distinction matters.
ASEAN is not creating one currency.
It is creating connections between many currencies.
And that may prove to be the more important experiment.
The question is no longer simply whether money can move faster across borders.
It is whether interoperability itself can become a new form of regional integration.
The QR Code Is Only the Surface
The visible part of ASEAN's payment transformation is remarkably simple.
A traveller scans a QR code.
Behind that scan, however, sits a network of domestic payment infrastructure.
Indonesia has QRIS.
Thailand has Thai QR and PromptPay.
Singapore has PayNow and NETS.
Cambodia has Bakong and KHQR.
These systems were originally designed for domestic use. The regional innovation has been to make them communicate across borders rather than forcing every country to adopt the same system.
The International Monetary Fund describes ASEAN's approach as a series of bilateral cross-border payment linkages built on existing domestic fast-payment and QR systems. These include both QR payment connectivity for merchant transactions and fund-transfer connectivity for person-to-person payments. [2]
That distinction is important.
The QR code is not the innovation.
Interoperability is.
The user sees a familiar interface.
The infrastructure underneath handles the translation between systems, currencies, participating institutions and regulatory environments.
This is why ASEAN's model is different from simply replacing national payment systems with one regional platform.
The national systems remain.
The connections multiply.
And the more connections that exist, the less important the underlying national boundaries become to the user experience.
Malaysia's connectivity with Cambodia illustrates the principle. When phase two of the bilateral linkage launched in April 2025, Malaysian travellers could use participating domestic mobile applications to scan KHQR and pay Cambodian merchants, while Cambodian users could continue using Bakong to scan DuitNow QR in Malaysia. More than seven million merchants across the two countries were positioned to gain access to a wider customer base. [3]
The infrastructure remains bilateral.
The experience becomes increasingly regional.
That is the first important shift.
Integration Without a Single Currency
This is where ASEAN's experiment becomes more interesting.
Regional economic integration is often imagined as a process of reducing differences until countries operate more like one system.
ASEAN is taking a different route.
The currencies remain sovereign.
The central banks remain sovereign.
The domestic payment systems remain sovereign.
Yet the payment experience is becoming increasingly interoperable.
That creates a useful distinction:
Unification removes differences.
Interoperability allows differences to work together.
The European monetary model required countries participating in the euro to surrender national currencies and monetary policy to a shared framework.
ASEAN does not require that.
Instead, it is attempting to make the practical act of paying across borders easier while allowing each country to retain control over its own monetary system.
The Local Currency Transaction Framework reinforces this direction. Malaysia, Indonesia and Thailand adopted harmonised operational guidelines in February 2025 to streamline local-currency transactions across the three countries, covering trade, services, investment and, following the latest expansion, portfolio investment. [4]
This is not the same thing as eliminating foreign exchange.
Nor does it mean every ASEAN payment is settled through a single regional currency mechanism.
The significance is more subtle.
ASEAN is developing infrastructure that allows national monetary systems to remain distinct while becoming easier to connect.
That changes the question.
When will ASEAN have a common currency?
How much economic integration can be achieved without one?
From Bilateral Bridges to a Regional Network
There is another reason this matters.
A network becomes more powerful as the number of useful connections increases.
ASEAN's payment architecture is still not one seamless regional system. Much of the connectivity remains bilateral, and the availability of particular corridors and participating institutions varies by country.
But the direction is clear.
By the end of 2025, ASEAN had reached 29 bilateral payment connectivity arrangements, compared with 18 at the beginning of that year. [1]
Indonesia provides another indication of how individual corridors can begin acquiring scale. By February 2026, QRIS connectivity with Malaysia had recorded 10.66 million transactions, while the Thailand corridor had recorded 1.64 million and Singapore 554,510. [5]
The significance is not simply that more transactions are taking place.
It is that the infrastructure is beginning to acquire network effects.
That points towards the next stage.
Project Nexus, developed through the BIS Innovation Hub, is designed around a different model from conventional bilateral connectivity. Instead of building a separate connection between every pair of countries, a domestic instant-payment system can connect once to a common platform and potentially reach multiple other systems through that connection. In 2025, the central banks of India, Indonesia, Malaysia, the Philippines, Singapore and Thailand incorporated Nexus Global Payments to move the initiative towards live implementation. [6]
The conceptual progression is therefore:
Bilateral bridges.
↓
Regional interoperability.
↓
A network of networks.
This is where the economics become more interesting.
The objective is no longer simply to make one corridor work.
It is to reduce the marginal difficulty of creating the next connection.
And that is how infrastructure begins to scale.
When the Small Merchant Becomes Regional
The largest strategic consequence may not be visible inside banks at all.
It may appear at the smallest point of sale.
Cross-border payment systems have traditionally been designed around financial institutions, correspondent banks, card networks and relatively formal commercial infrastructure.
QR connectivity changes the minimum infrastructure required to participate.
A merchant does not necessarily need a conventional international card terminal.
A participating QR acceptance point can become a gateway to customers from another country.
Malaysia's experience illustrates the potential. PayNet reported that cross-border QR transactions grew 2.5 times to 29.7 million in 2025. It also reported that more than three million DuitNow QR touchpoints existed nationwide, with more than 267,000 new MSME acceptance points added during the year. [7]
This matters because regional commerce has historically had a minimum scale.
A business needed the infrastructure to accept foreign customers before it could meaningfully serve them.
Interoperable payment rails can lower that threshold.
It becomes:
That is potentially transformative for tourism, retail, food and beverage, e-commerce and other services where transactions are frequent but individually small.
The merchant does not need to think of itself as an exporter.
The payment infrastructure can quietly make it one.
That may be one of the most consequential effects of ASEAN's payment experiment.
The Currency Border Is Not Gone
It would be easy to become too enthusiastic about the story.
ASEAN has not eliminated the friction of cross-border finance.
It has reduced parts of it.
The distinction matters.
Foreign exchange still exists.
Regulatory differences still exist.
Payment corridors are not uniformly available.
Different institutions participate in different arrangements.
And the more interconnected the system becomes, the more important operational resilience, fraud prevention, cybersecurity and coordinated oversight become.
The IMF notes that digitalisation can reduce payment friction and support e-commerce and smaller businesses, but also introduces operational and cyber risks. Greater interoperability can create new dependencies, while concentration among dominant providers can introduce systemic risks of its own. [2]
This creates an important paradox.
The more seamless the payment experience becomes, the more invisible the infrastructure underneath it becomes.
And invisible infrastructure can be difficult for users to understand until something goes wrong.
That means the next phase of ASEAN payment integration cannot be measured only by transaction speed or transaction volume.
It will also depend on:
- trust;
- resilience;
- consumer protection;
- fraud controls;
- cybersecurity;
- regulatory coordination; and
- the ability of participating systems to remain interoperable as they evolve.
In other words, the region is not simply building a faster payment system.
It is building a shared dependency between sovereign systems.
That requires a different kind of governance.
The Regional Integration Experiment
This is where the larger significance of ASEAN's payment architecture begins to emerge.
ASEAN is not creating one financial system.
It is creating an interoperability layer between financial systems.
That may sound like a technical distinction.
It is not.
Infrastructure determines what becomes easy.
When electricity grids connect countries, energy can flow across borders.
When digital networks connect markets, information becomes easier to exchange.
And when payment systems connect, economic transactions become easier to imagine across borders.
It makes sovereignty interoperable.
That may be a particularly ASEAN form of integration.
It needs the systems to understand one another.
This is why the payment story may eventually extend beyond payments.
The same principle — sovereign systems connected through common standards — could become relevant to other parts of ASEAN's emerging digital economy.
Data exchange.
Trade documentation.
Logistics.
Financial services.
Digital commerce.
Perhaps even elements of a broader regional digital market.
The lesson from payment connectivity is therefore larger than the payment itself:
Regional integration does not always require a bigger central institution. Sometimes it requires better connections between existing ones.
And if ASEAN can make those connections sufficiently reliable, secure and scalable, the digital layer of regional integration may begin to develop faster than the political layer beneath it.
The so-called ASEAN digital Schengen, then, is not really about payments alone.
It is about whether ASEAN can develop a broader model of digital integration in which national systems remain sovereign, but increasingly become interoperable by design.
The Alpha Takeaway
The most interesting thing about ASEAN's payment transformation is not that a traveller can scan a QR code in another country.
It is that sovereign systems can become interoperable without becoming identical.
ASEAN does not need one currency to make regional payments easier.
It does not need one payment system to create a shared transaction experience.
And it does not need to erase national boundaries to make those boundaries less visible in everyday digital commerce.
That is a different model of integration.
One based not on unification, but on connection.
The implications extend beyond money.
If the same logic can be applied to other parts of the digital economy, ASEAN could begin building a broader regional digital zone in which national systems retain their sovereignty while becoming increasingly interoperable.
The payment rail may therefore be more than financial infrastructure.
It may be a prototype.
A demonstration that regional integration can happen from the infrastructure layer upward.
The future of ASEAN integration may not be about becoming one system.
It may be about becoming many systems that work as though they belong to one.
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| Structural breakdown showing how ASEAN’s direct central bank QR linkages bypass intermediary foreign exchange steps to facilitate direct local currency settlement in seconds. |
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