Sending money across borders in Asia is still slower and more expensive than it should be. A worker in Singapore sending money home, a Thai exporter paying a Malaysian supplier or a tourist buying lunch abroad often pays fees and waits for transfers that pass through several banks. Three very different networks are now racing to fix that, and the outcome will shape who controls the flow of money across the region.
The first is Project Nexus, which links the instant payment systems of several Southeast Asian countries and India. The second is mBridge, a platform led by China's central bank that settles cross border payments mainly in digital yuan. The third is India's UPI, which is plugging directly into the QR payment systems of countries such as Cambodia and Indonesia.
Project Nexus: connecting instant payments
Project Nexus aims to connect national instant payment systems so that a payment made through one country's system can arrive almost instantly in another. Its founding members are India, with UPI, Malaysia, with DuitNow, the Philippines, with InstaPay, Singapore, with PayNow and FAST, and Thailand, with PromptPay. Rather than building bilateral links between every pair of countries, Nexus offers a single connection to a network.
The project has moved from concept to implementation. In February 2026, Nexus Global Payments appointed a joint venture of Malaysia's PayNet and Singapore's NETS as its technical operator, and go live is targeted for 2027. When it launches, users in member countries could send money across borders as easily as they send it at home.
Nexus builds on the region's success with domestic instant payments. Systems such as PromptPay and PayNow have transformed how people pay at home, and bilateral QR links already let travellers pay across several Southeast Asian countries. Nexus aims to scale that connectivity.
mBridge: a digital yuan corridor
mBridge takes a different approach. Instead of linking existing payment systems, it uses central bank digital currencies to settle payments directly between participants on a shared platform. Its participants include the central banks of mainland China, Hong Kong, Thailand, the United Arab Emirates and Saudi Arabia.
The platform has grown significantly. It has processed more than 4,000 cross border transactions worth about 55.49 billion dollars, with the digital yuan accounting for about 95 percent of settlement volume, according to PYMNTS. That dominance reflects China's push to expand the international use of its currency and to build payment channels outside the dollar based system.
Whoever builds the pipes that carry Asia's money across borders will shape which currencies flow through them.
Thailand is the only Southeast Asian participant in mBridge, which places it in both camps: a founding member of Nexus and a participant in the digital yuan platform. That dual position reflects how Southeast Asian countries are keeping their options open.

UPI: India's direct links
India is pursuing a third path, connecting its hugely popular UPI system directly to other countries' QR payment networks. In June 2026, a link between UPI and Cambodia's KHQR system went live, allowing Indian travellers to pay at Cambodian merchants using their UPI apps, as reported by Business Today. More than 4.5 million KHQR merchants were expected to accept such payments.
Indonesia is next. Officials have been working toward a link between UPI and Indonesia's QRIS system, which is expected to be fully operational by the end of 2026. Other countries have expressed interest in similar connections.
India's approach combines the reach of its domestic system, used by hundreds of millions of people, with targeted links that serve Indian tourists, workers and businesses abroad. It is also part of India's participation in Nexus, giving it a presence in multiple networks.
What it means for businesses and consumers
For ordinary users, the competition promises faster and cheaper cross border payments. Tourists can pay with familiar apps, workers can send money home more cheaply and small businesses can trade across borders without expensive intermediaries.
The key implications include:
- Cross border payments in Asia are likely to become faster and cheaper.
- Businesses may need to support several networks depending on their markets.
- China's mBridge expands the role of the digital yuan in regional settlement.
- Southeast Asian countries are participating in multiple networks to keep options open.
Regulators are adding another layer, with stablecoin cooperation such as the workstream agreed by Hong Kong and Malaysia. We covered that in our report on Hong Kong and Malaysia exploring cross border stablecoins.
The geopolitics of payments
Payment networks are not neutral. They determine which currencies are used, who sees transaction data and how exposed countries are to sanctions or disruption. China's promotion of mBridge and the digital yuan is partly about reducing reliance on dollar based systems, while Nexus builds on existing national currencies and India's UPI links extend Indian influence.
For Southeast Asian countries, the challenge is to benefit from all of these networks without becoming dependent on any one. Participating in several allows them to serve different trading partners and to avoid being locked into a single bloc.
The competition may ultimately benefit users, as networks compete on speed, cost and convenience. But it also raises the risk of fragmentation, where incompatible systems make cross border payments more complex rather than less. Interoperability between networks will be crucial.
Rewiring Asia's money
Asia's cross border payments are being rewired by three different visions: connected instant payment systems through Nexus, central bank digital currency settlement through mBridge and direct QR links through UPI. Each brings real benefits, and each reflects different strategic interests.
For businesses, workers and travellers across the region, the result should be faster and cheaper ways to move money. For governments, the race is about influence over the financial plumbing of the world's most dynamic region, and the decisions made in the next few years will shape it for decades.

What is Project Nexus?
Project Nexus is a network that links national instant payment systems so payments can move almost instantly across borders. Its founding members are India, Malaysia, the Philippines, Singapore and Thailand.
When will Project Nexus go live?
Go live is targeted for 2027. In February 2026, a PayNet and NETS joint venture was appointed as Nexus's technical operator.
What is mBridge?
mBridge is a platform that settles cross border payments using central bank digital currencies. Its participants include the central banks of mainland China, Hong Kong, Thailand, the UAE and Saudi Arabia.
How much has mBridge processed?
mBridge has processed more than 4,000 cross border transactions worth about 55.49 billion dollars, according to reports.
Which currency dominates mBridge?
The digital yuan accounts for about 95 percent of mBridge settlement volume, reflecting China's push to expand its currency's international use.
What is UPI doing in Southeast Asia?
India's UPI went live with Cambodia's KHQR system in June 2026, and a link with Indonesia's QRIS is expected by the end of 2026.
Which Southeast Asian countries are in mBridge?
Thailand is the only Southeast Asian participant in mBridge, and it is also a founding member of Project Nexus.
How will these networks help consumers?
They promise faster and cheaper cross border payments for tourists, migrant workers and businesses.
Why do payment networks matter geopolitically?
Payment networks determine which currencies are used, who sees transaction data and how exposed countries are to sanctions or disruption.
Will businesses need to use several networks?
Possibly. Businesses trading with different partners may need to support multiple networks, which makes interoperability important.
Are stablecoins part of this race?
Yes. Regulators are also exploring cross border stablecoin use, such as the workstream agreed by Hong Kong and Malaysia in October 2026.
How many merchants accept UPI in Cambodia?
More than 4.5 million KHQR merchants in Cambodia were expected to accept payments from Indian travellers using UPI.
Could the networks become fragmented?
Yes. If incompatible systems multiply, cross border payments could become more complex, which is why links between networks will be crucial.
What is a central bank digital currency?
A central bank digital currency is a digital form of a country's money issued directly by its central bank. mBridge uses such currencies, mainly the digital yuan, to settle cross border payments.
Who operates Project Nexus?
Nexus Global Payments oversees the project, and a joint venture of Malaysia's PayNet and Singapore's NETS was appointed technical operator in February 2026.
The race to rewire Asia's cross border payments pits connected instant payments, a digital yuan platform and India's expanding UPI against one another. Each offers faster, cheaper ways to move money, and each carries its own strategic agenda. For the region's users, the benefits are close at hand, and for its governments, the choices about which networks to join will shape financial influence in Asia for years to come.
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