Thailand vs Japan · Real-time payment systems compared
| Capability | PromptPay | Zengin |
|---|---|---|
| QR Code Payments | ✓ | — |
| Wallet Support | — | — |
| 24/7 Availability | ✓ | ✓ |
| Cross-Border | ✓ | — |
| ISO 20022 | ✓ | — |
| Request to Pay | — | — |
| Open API | ◐ | — |
| Alias/Proxy | ✓ | — |
Thailand's national e-payment system, a core part of the government's National e-Payment Master Plan. PromptPay links bank accounts to mobile numbers or national citizen IDs for instant P2P transfers, and includes a standardised QR code system for merchant payments. Operated by NITMX under Bank of Thailand oversight, it connects all major banks with zero fees for transfers under THB 5,000. PromptPay has cross-border QR linkages with Singapore's PayNow, Malaysia's DuitNow, and other ASEAN systems.
Japan's domestic interbank clearing network, one of the oldest electronic payment systems in the world, connecting over 1,000 banks and financial institutions. Originally a batch-processing system, Zengin was upgraded to 24/7 real-time operations in 2018 via the "More Time System" extension. Operated by the Japanese Bankers Association with settlement through the BOJ, it handles the vast majority of Japan's domestic credit transfers. Note: data includes all Zengin transactions (both real-time and batch-processed), as the system does not separately report its 24/7 instant component.