Whalesbook
UPI's Success Story: A Growing Challenge
India's Unified Payments Interface (UPI) has dramatically reshaped its payment landscape over the past decade. Its massive success, built on a promise of zero transaction fees, now presents a significant economic challenge. As UPI marks ten years, the conversation is shifting from simply growing user numbers to finding a sustainable financial model. This model must balance what users expect with the costs of running a complex digital system. UPI faces a clear conflict: more transactions mean higher costs, but users strongly oppose any direct charges.
User Resistance and Falling Subsidies
A recent survey highlights a strong user expectation for free digital payments. A significant 75% of UPI users said they would stop using the service if any fees were introduced, with only a quarter willing to pay. This user opposition is made worse by issues with merchants, as 57% of users reported merchants refusing UPI payments for cash in the past year. This situation occurs as government subsidies become increasingly strained. While the government has supported UPI, recent funding, like the ₹2,000 crore for FY26, falls far short of covering the system's actual costs. For FY25, only about ₹1,000 crore was disbursed against a ₹1,500 crore budget. Industry estimates suggest these subsidies cover only about 11% of total operational costs. There are growing concerns that these funds might not be used, increasing financial pressure on payment providers.
Why Free Transactions Are Costly
The decision in January 2020 to remove the Merchant Discount Rate (MDR) for UPI transactions, aimed at boosting digital payments, eliminated a key source of funding for payment infrastructure. Today, banks, payment apps, and infrastructure providers cover all processing costs, estimated at around ₹2 per transaction including technology and operational expenses. UPI processed over 228 billion transactions in 2025 alone, creating a huge financial burden on these companies, estimated in the thousands of crores monthly. The industry faced an estimated ₹9,000 crore deficit last year from processing merchant transactions. While UPI growth once averaged over 40% annually, it's now slowing to projected rates of 25-30% for FY26. This maturation means cost recovery is increasingly important. Unlike credit card transactions, which have MDRs from 0.4% to over 2%, UPI largely has no direct revenue from transactions. This makes UPI a high-volume, low-return business for banks, limiting their ability to invest in innovation and infrastructure upgrades.
Unsustainable Model Creates Risk
UPI's current financial structure is not sustainable without a direct income source or significant, ongoing government support. The system is in a difficult spot: users expect free transactions, but operating costs are rising rapidly with scale. Banks and fintech companies invest heavily in technology, acquiring customers, and infrastructure, but they don't get direct revenue from UPI transactions. They rely on indirect ways to make money, like selling other financial products or charging for merchant devices such as soundboxes. These methods may not cover the core processing costs. Additionally, a parliamentary committee suggested looking into a tiered charging system for long-term viability, recognizing that current subsidies are not enough. The Governor of the Reserve Bank of India has also stated that the costs of UPI transactions must be covered by someone to ensure the system's sustainability. If fees are introduced, a large number of users might leave, which, combined with existing issues with merchants, could seriously damage the network effect that has made UPI so strong.
Finding a Way Forward
Policymakers and industry leaders face a difficult situation. Continuing as is requires ever-larger government subsidies, which may not be sustainable. Introducing fees, however, risks alienating users who are used to free digital payments. Globally, instant payment systems are growing, but their long-term success often depends on various revenue streams or government backing during their early stages. A proposed solution is to reintroduce a graded MDR, possibly protecting small merchants while charging commercial users. This seems like a sensible, though controversial, step. Without a practical revenue model that covers the actual costs of maintaining digital infrastructure, the future of UPI's widespread, low-cost service is uncertain. This could also slow down future innovation and efforts to reach underserved areas.