The Unstoppable Rise of UPI
Launched in 2016, UPI has fundamentally reshaped how Indians transact. From kirana stores to national retailers, the QR code has become a ubiquitous symbol of a digital revolution. In August 2026 alone, UPI processed a staggering 24.5 billion transactions
worth nearly ₹30 lakh crore. This meteoric rise was no accident; it was the result of a deliberate government policy to make digital payments as seamless and free as possible. By eliminating transaction fees for both customers and merchants, UPI removed the primary reason for preferring cash. The result has been a more than 4,000-fold increase in transaction value in under a decade, making UPI the world's largest real-time payment system.
The Zero-Cost Paradox
The magic of UPI lies in its zero Merchant Discount Rate (MDR) policy, which was implemented in 2020. MDR is the fee merchants traditionally pay to banks and payment providers for processing digital transactions. By making this fee zero for UPI and RuPay debit cards, the government turbocharged adoption among small businesses operating on thin margins. However, while the transaction is free for the user and the merchant, it is not free to operate. Every payment requires a complex backend infrastructure of servers, security systems, and inter-bank networks, all of which have significant costs. This created a paradox: the more successful UPI became, the greater the financial burden on the banks and fintech companies like PhonePe, Google Pay, and Paytm that facilitate these transactions.
Who Really Pays for 'Free' Payments?
For years, the answer has been the payment service providers and banks. With no direct revenue from the transactions they process, these companies have been operating their UPI services at a massive loss. The government offered some financial relief through an incentive scheme to offset the costs, but these subsidies have been insufficient to cover the escalating expenses of maintaining and scaling the infrastructure needed to handle billions of transactions. This has forced fintech companies to find alternative ways to make money, such as by cross-selling loans, insurance, or other financial products to their vast user bases. However, this model has been deemed unsustainable by many, including a parliamentary committee and the Reserve Bank of India (RBI).
A Tipping Point and a New Model
Recognising the strain on the ecosystem, a major policy shift is now underway. Effective October 15, 2026, a 0.4% MDR will be introduced for person-to-merchant (P2M) UPI transactions above ₹2,000. This move, backed by the RBI, is designed to create a revenue stream to ensure the long-term sustainability and continued innovation of the payment network. However, the change is carefully structured to protect the core drivers of UPI's growth. All person-to-person (P2P) transfers will remain free. P2M transactions below ₹2,000 will also remain free for merchants, and small merchants with a UPI turnover of up to ₹1 lakh per month are exempt. The government estimates this will shield about 96% of merchant transactions from any new fees.
The Search for a Sustainable Future
The introduction of a tiered MDR marks the end of UPI's fully subsidised era. It represents a crucial compromise between promoting digital adoption and ensuring the commercial viability of the infrastructure that supports it. The revenue generated will be shared among the ecosystem players—banks, payment service providers, and app providers—to fund ongoing investment in technology and security. While some merchants with high-value transactions may reconsider UPI, the policy aims to strike a balance. Other monetisation avenues are also emerging, such as linking credit lines to UPI, which allows banks to earn revenue through lending. This signals a strategic shift: the future of UPI is not just about growing transaction volumes, but about building a financially resilient ecosystem around them.
