Singapore vs United States · Real-time payment systems compared
| Capability | FAST | RTP |
|---|---|---|
| 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.
The first modern US instant payment system, operated by The Clearing House (owned by 22 of the largest US banks). RTP launched in 2017 and supports credit transfers up to $10M (raised from $1M in February 2025, which is why network value jumped sharply that year) with immediate finality — no chargebacks or returns. It also offers Request for Payment (RfP) messaging for bill pay and invoicing. While FedNow provides Fed-backed infrastructure, RTP has a head start with broader bank connectivity and higher transaction limits, and processes the majority of US instant payment volume today.