The Reign of 'Zero-MDR'
Since January 2020, UPI transactions have operated under a 'zero-MDR' regime. MDR, or Merchant Discount Rate, is a fee merchants pay to banks and payment service providers for processing digital transactions. The government eliminated this fee for UPI and RuPay
debit cards to supercharge digital adoption. The strategy was a phenomenal success. UPI became one of the world's largest real-time payment systems, processing over 23 billion transactions in July 2026 alone. This policy decision was instrumental in bringing everyone from roadside vendors to large retailers into the digital fold, as it made accepting electronic payments cost-free.
The Push for Sustainability
While the zero-fee model drove adoption, it created a significant financial strain on the ecosystem that supports it. Banks, the National Payments Corporation of India (NPCI), and payment apps like PhonePe and Google Pay incur substantial costs for infrastructure, cybersecurity, fraud prevention, and transaction processing. With no revenue from the transactions themselves, these players argue the model is unsustainable. They have been advocating for a fee structure to ensure they can continue to invest in the system's security and innovation. As one RBI official noted, someone has to bear the cost of maintaining the payment infrastructure. The lack of a revenue stream has also led to market concentration, with a few deep-pocketed players dominating the space.
What is Actually Being Proposed?
Recent legislative changes have opened the door for reintroducing MDR. In August 2026, the Lok Sabha passed a bill that amends the Payment and Settlement Systems Act, empowering the government to allow charges on certain electronic payments. However, the government has been quick to clarify that this is an 'enabling provision' and not an immediate imposition of fees. Consumers will not be charged for using UPI, and all person-to-person (P2P) transfers will remain free. The discussion is focused on a potential, nominal MDR for certain person-to-merchant (P2M) transactions, likely only for larger businesses and for transactions above a specific threshold, such as ₹2,000. This would mean the vast majority of daily, small-ticket purchases would likely remain free for merchants.
The Balancing Act
The core of the debate is a classic conflict between growth and sustainability. The government's priority has been financial inclusion, viewing UPI as a public good essential for a digital economy. Introducing fees, even small ones, risks alienating the small merchants who have been key to UPI's success. There is a concern that merchants might pass these costs on to consumers through higher prices or by encouraging cash payments, potentially slowing digital adoption. On the other hand, the industry argues that a sustainable revenue model is crucial for the long-term health, security, and expansion of the UPI network. Without it, investment in crucial areas like fraud detection and system upgrades could falter.
A Fork in the Road for Digital Payments
The final decision on if, when, and how to implement MDR rests with an NPCI-led committee, which will need to navigate these competing interests. Several models are reportedly under consideration, including applying fees only to merchants with high annual turnover or only on transactions above a certain value. Proposed rates are around 0.3%, which is significantly lower than the MDR on most credit and debit card transactions. This tiered approach aims to protect small businesses while creating a revenue stream from high-volume, high-value commercial transactions. The outcome of this debate will determine the financial architecture of India's digital payment landscape for years to come, shaping how hundreds of millions of people and businesses transact every day.
