Southeast Asia's payment rails leave US merchants behind

Southeast Asia's domestic rails now carry billions of transactions a year that American merchants cannot reach - and domestic investment, regulation, and consumer adoption mean they are becoming more entrenched, not less.

In payments, going global has long meant going generic: one network, one standard, one experience everywhere. For American merchants that assumption held for thirty years, however in Southeast Asia today, where most customers are never reached, it no longer holds true.

The Scale of What Cards Miss

The transaction volumes in the region are not marginal, and the methods are nothing but conventional according to U.S. standards. Bank Negara Malaysia reports 18.4 billion e-payment transactions in 2025, up 25%, with DuitNow QR doubling to 3 billion across nearly 3 million acceptance points. The Philippines pushed ₱24.7 trillion through InstaPay and PESONet, up 42%, as volume tripled to 4.8 billion transactions. Singapore's SGQR label sits at 130,000-plus acceptance points, resolving PayNow, NETS, Alipay and GrabPay into one scan. This is how three countries now pay.

American growth has a stake in growing their sales audience in Southeast Asia. The Small Business Administration counts 1.3 million US small-business exporters against an addressable market above 2.6 million, and notes that nearly 96% of the world's consumers live outside the United States. Additionally, U.S. products remain highly in demand, however once consumers reach check out, they are met with binding constraints.

The Cost of an Oversimplified Solution

Historically, global payments players have addressed fragmented payment methods by forcing uniformity. Yet regulatory compliance, banking customs and consumer trust seldom survive the transition. Therefore the solution is rarely standardization; which is a compromise dressed as a solution; but interoperability by letting national rails stay distinct while money moves between them.

Regulatory alignment and local adoption are also at stake, as both provide these rails with staying power. Where a transaction is acquired decides which institutions take part, what regulators see, and where the value is captured. Governments across the region are strengthening the institutions around these rails - Malaysia through PayNet, the Philippines by merging BancNet with its clearing house, Singapore by placing eight schemes under one governing body. The consolidation signifies that these rails aren't going anywhere, as states do not restructure clearing infrastructure around rails they expect to be superseded.

Just as importantly, the design of the rail affects who can participate at all.. Account-to-account rails ask no consumer to clear the minimums and logistical hurdles card issuance requires. InstaPay overtook ATM withdrawals in volume and value in 2020; DuitNow and FPX need only a national ID and electronic banking. The consumer at the far end has not opted out of foreign goods; she is just paying by a method most American checkouts decline to offer.

Depth Is Not Reach

For global merchants, accessing these rails is not as simple as it appears. Merchants expanding into dozens of markets cannot spend years launching each option individually, and every incremental country brings new integrations, compliance work and settlement flows. In essence, providing access to a product in a new market is the easy part; getting paid for it is what's hard.

PayNet, BancNet and NETS built trust inside their own borders and their regulators wrote the legislation. What is missing sits on the other side of the transaction. Most global merchants, having priced the work of connecting properly in each market, settle for what the cards reach and forgo most of their potential customers.

American merchants can exploit that gap rather than suffer it. A card-only checkout in Kuala Lumpur, Manila or Jakarta competes for a minority of the consumers passing it who hold the instrument it accepts. The rest transact elsewhere; in billions.

Borderless Treasury

The region's regulators are building for this. In March 2025 the central banks of India, Malaysia, the Philippines, Singapore and Thailand incorporated Nexus Global Payments in Singapore, chartered to link their instant payment systems through a single hub; Indonesia joined in 2026, with the go-live targeted for 2027. Merchants who did the integration work first will be reaching those consumers more easily than ever.

Cheaper collection and dependable settlement open foreign markets to global merchants that could never justify running a separate balance sheet for each new market. What the largest merchants need most is a payments partner who can offer borderless treasury: collect through a dozen local networks but settle into one currency. While the premise is simple, execution requires abstracting local complexity at immense scale.

I have seen firsthand how difficult this can be. We acquired a strong single-market player, assuming its licences and bank relationships would quickly carry its products to global scale. What I learned is that anything optimized for a single market has to be fundamentally reimagined in order to be relevant to international merchants. To turn a network of excellent local operators into a solution greater than the sum of its parts, interoperability must be built into infrastructure by design. Depth is built at home; global reach is not.

Serving global merchants demands the patience to integrate market by market, partner by partner, into rails not designed for outsiders; while simplifying that patchwork of connections into a single interface for merchants accustomed to the simplicity of cards-only transactions. The continued expansion of global commerce now depends on letting consumers pay with the instruments they already trust.

Southeast Asia has built the depth, and none of it waits on American participation. Those transactions happen at scale whether or not a US merchant sits on the other side. What remains for American companies is a choice: be present at checkout with the payment methods their customers already use, or wait for those customers to acquire a card. Few American merchants will manage the first without the firms with readily-available infrastructure in dozens of these markets.