Proponents of introducing a tiered or modest Merchant Discount Rate (MDR) for UPI argue that the current zero-fee model is unsustainable for the long-term health of India's digital payment infrastructure. Banks and payment service providers invest heavily in technology, cybersecurity, and server capacity to ensure that millions of transactions occur seamlessly every day. Without a revenue stream from these transactions, these institutions face significant challenges in funding the necessary upgrades to keep the system secure and efficient.
By allowing a small, regulated fee, the ecosystem could generate the capital needed for continuous innovation and better customer support. Supporters suggest that a sustainable business model would encourage more private investment into the digital payment space, ultimately benefiting the entire economy. They argue that a fee-based model is standard in other payment systems, such as credit and debit cards, and that UPI should eventually transition to a model that rewards the entities providing the service.
Furthermore, advocates for this view emphasize that a well-funded network is more resilient against fraud and technical outages. If the entities responsible for the network cannot cover their costs, the quality of service may eventually decline, which would hurt merchants and consumers alike. A balanced fee structure could be designed to exempt the smallest vendors while asking larger businesses to contribute to the cost of the digital infrastructure they rely on for their daily operations.
Ultimately, the goal is to move from a subsidized model to a market-driven one. Supporters believe that a clear, transparent fee structure would provide the certainty that businesses need to plan for the future, ensuring that India's digital payment success story remains robust and capable of handling even higher volumes in the coming years.