India's Unified Payments Interface has evolved from a domestic solution into a globally adopted payment system, with 12 countries now using the platform as the government moves forward with legislation allowing merchant fees.
India's Unified Payments Interface (UPI) has transformed into a cornerstone of the country's digital infrastructure strategy, with the recent passage of the Taxation and Other Laws (Amendment) Bill, 2026 marking a new phase in its development. The legislation permits banks and payment operators to impose fees on UPI transactions, though the government has clarified that ordinary consumers will not bear these costs. Instead, only merchants exceeding a certain threshold would face what authorities describe as a "nominal" charge, according to clarification issued following the bill's passage in the Lok Sabha on August 6.
The fee structure development arrives as UPI experiences unprecedented growth both domestically and internationally. Between fiscal years 2021-22 and 2025-26, domestic UPI transactions surged from approximately 4,595 crore to 24,161 crore, with transaction value jumping from Rs 84.16 lakh crore to Rs 314.23 lakh crore. International adoption has accelerated even more dramatically, with cross-border UPI transactions multiplying roughly 20-fold between 2022 and 2025, rising from 180 transactions to over 7.5 lakh transactions. The International Monetary Fund has recognized UPI as the world's largest retail fast payment system by transaction volume, with India now accounting for nearly half of all real-time payment transactions globally.
This expansion reflects deliberate design choices made when UPI was launched on April 11, 2016. The National Payments Corporation of India established UPI as a not-for-profit utility collectively owned by banks rather than by a single dominant institution, a structural decision that preserved neutrality and credibility essential for international adoption. The system was built to address India's fragmented payment landscape while maintaining near-zero user costs, creating an open, modular architecture that developing economies could readily implement. Twelve countries have now adopted the Indian payment system, positioning UPI as an instrument of India's emerging digital infrastructure diplomacy.
