New Delhi, Dec. 9 -- The International Monetary Fund (IMF) report on 'Growing Retail Digital Payments (The Value of Interoperability)' dated June 2025 had recognized Unified Payments Interface (UPI) as the world's largest retail fast-payment system (FPS) by transaction volume. Further, as per ACI Worldwide report on 'Prime Time for Real-Time' 2024, UPI has around 49% share in the global real-time payment system transaction volume.

The detailed comparison illustrating UPI's current status and market share against other leading international real-time payment platforms is given in the table below.

In order to support small scale merchants in adopting digital payment systems including UPI, various initiatives have been taken up by the Gove...