Linked QR Payments: How Asia's Payment Systems Are Connecting Across Borders
How national instant-payment and QR systems in Asia — PromptPay, PayNow, UPI, QRIS, DuitNow and others — are being linked so travellers and businesses can pay across borders with local apps.
Short answer
Many Asian countries built fast national payment systems with standard QR codes. Since around 2021, central banks have been linking them bilaterally — for example Thailand's PromptPay with Singapore's PayNow, and India's UPI with PayNow — so people can pay or send money abroad using their home banking app. ASEAN members have committed to expanding these links regionally.
Key points
- National QR standards made interoperability technically possible.
- Bilateral links let tourists pay merchants with their home app.
- Remittances between linked systems can be faster and cheaper than traditional transfers.
- Coverage differs by bank and country — check your own app.
Over the past decade, many Asian countries built fast, low-cost national payment systems. Most adopted standard QR codes so any app could pay any merchant. The next step — now well underway — is connecting those national systems to each other.
The national building blocks
| Country | System or brand | Typical use |
|---|---|---|
| Thailand | PromptPay | Transfers and QR payments using phone or ID number |
| Singapore | PayNow / SGQR | Transfers by phone number; unified QR for merchants |
| India | UPI | Real-time payments via apps and QR |
| Indonesia | QRIS | National QR standard for merchants |
| Malaysia | DuitNow | Transfers and QR payments |
| Philippines | QR Ph | National QR standard |
| Vietnam | VietQR | Bank-transfer QR codes |
How the links work
When two systems are linked, a customer scans a merchant's QR code abroad with their home banking app. The app shows the amount in both currencies, the banks handle conversion and settlement behind the scenes, and the merchant receives local currency.
Notable milestones include the link between Thailand's PromptPay and Singapore's PayNow for person-to-person transfers in 2021, and the UPI–PayNow link between India and Singapore in 2023. Several ASEAN central banks have committed to regional payment connectivity, adding further bilateral QR links among their members.
Why it matters
For travellers
Paying at a street stall abroad with your home app avoids carrying cash or paying card fees that small merchants may not accept.
For migrant workers and families
Linked transfer systems can make remittances faster and cheaper than traditional channels — significant in a region where millions of people send money home.
For merchants
A small shop can accept payments from foreign visitors without signing up for international card acquiring.
Limitations
- Coverage varies. Not every bank in a linked country participates.
- Limits apply. Transaction and daily limits are usually lower than for card payments.
- Exchange rates differ. Banks set the rate; compare before paying.
- Not everything is linked. Many country pairs still have no connection.
The bottom line
Asia is building payment connectivity from the bottom up: national QR systems first, bilateral links next, regional networks over time. For people who travel, work abroad or sell across borders, it's quietly one of the most practical changes in the region.
Questions readers ask
Can I pay with my home banking app in another Asian country?
Sometimes. It depends on whether your country's system is linked to the destination's, and whether your bank participates. Check your bank's app for cross-border QR support before you travel.
Are linked QR payments cheaper than cards?
They can be, because they skip some intermediaries, but fees and exchange rates are set by the participating banks. Compare the rate shown in the app with your card's rate.
