Singapore vs India · Real-time payment systems compared
| Capability | FAST | UPI |
|---|---|---|
| QR Code Payments | ◐ | ✓ |
| Wallet Support | ◐ | ✓ |
| 24/7 Availability | ✓ | ✓ |
| Cross-Border | ✓ | ✓ |
| ISO 20022 | ✓ | — |
| Request to Pay | — | ✓ |
| Open API | ◐ | ✓ |
| Alias/Proxy | ✓ | ✓ |
Singapore's two-layer instant payment infrastructure: FAST (Fast And Secure Transfers, 2014) provides the real-time clearing rail, while PayNow (2017) adds a proxy-based overlay allowing transfers via mobile number, NRIC/FIN, UEN, or VPA. PayNow has cross-border linkages with India's UPI, Thailand's PromptPay, and Malaysia's DuitNow. Governed by the Association of Banks in Singapore (ABS) under MAS oversight, the system supports P2P, P2M, and government disbursements with no transaction fees for individuals.
Unified Payments Interface is a real-time interbank payment system built on top of IMPS infrastructure, enabling instant mobile payments via QR code, phone number, Aadhaar, or virtual payment address (VPA). With 300+ participating banks and 50+ third-party apps (Google Pay, PhonePe, Paytm), UPI processes 14B+ transactions per month and has become India's dominant payment method for both P2P and merchant payments. Now expanding internationally with cross-border linkages to Singapore's PayNow and other ASEAN systems.