United States vs India · Real-time payment systems compared
| Capability | RTP | UPI |
|---|---|---|
| QR Code Payments | — | ✓ |
| Wallet Support | — | ✓ |
| 24/7 Availability | ✓ | ✓ |
| Cross-Border | — | ✓ |
| ISO 20022 | ✓ | — |
| Request to Pay | ✓ | ✓ |
| Open API | ✓ | ✓ |
| Alias/Proxy | — | ✓ |
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 $1M 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.
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.