What is MDR and Why is UPI Different?
Merchant Discount Rate, or MDR, is a fee that merchants pay to banks and payment service providers for processing digital transactions. It's typically a percentage of the transaction value and is the standard revenue model for credit and debit card payments.
This fee covers the costs of the payment infrastructure, fraud protection, and services provided by the entire ecosystem. For years, UPI has been the exception to this rule. Since 2020, a zero-MDR policy has been in place to encourage widespread adoption among consumers and merchants. This made UPI transactions free for everyone, a key factor behind its explosive growth, accounting for over 80% of digital payments in India.
The Zero-Cost Conundrum
While free for users, running the UPI ecosystem is not. The infrastructure requires constant investment in technology, security, and maintenance. Payment companies like PhonePe, Google Pay, and Paytm, which have onboarded millions of users, do not earn direct revenue from UPI transactions. Currently, their business models rely on cross-selling other financial products like loans, insurance, and mutual funds, or earning from bill payments and brand partnerships. Industry players argue that without a direct revenue stream from their core service, the model is unsustainable and discourages further investment in innovation and network expansion.
A Shift in Policy: Introducing a Calibrated MDR
Recognizing the sustainability challenge, the government and RBI have moved to introduce a structured MDR on UPI. As of October 15, 2026, a 0.4% MDR will apply to person-to-merchant (P2M) transactions above ₹2,000. However, this is not a blanket charge. Person-to-person (P2P) transfers remain free, as do all merchant transactions up to ₹2,000. To protect small businesses, merchants receiving up to ₹1 lakh per month are also exempt. For very large transactions of ₹75,000 and above, the MDR is capped at ₹300. Essential sectors like railways, fuel, and telecom will face a much lower flat fee of ₹5 for transactions over the threshold. This tiered approach aims to monetize higher-value commercial transactions while protecting small users and merchants, affecting an estimated 4% of total UPI merchant payments.
How This Reshapes Business Models
The introduction of a targeted MDR could fundamentally change how payment companies operate. For the first time, it creates a direct revenue stream from their primary service: processing UPI payments. This allows them to move from a purely cross-sell model to one where the core business generates income. The revenue collected from MDR is not a government tax but a fee distributed among the ecosystem players—the acquirer bank, the issuer bank, and the payment app—to compensate them for their roles in the transaction. This reliable income can justify larger investments in enhancing security, improving customer service, and expanding the payments network, creating a more financially robust ecosystem. The RBI has backed this move, stating it will support the long-term sustainability and growth of digital payments in India.
The Impact on Merchants and Consumers
The government has clarified that MDR is a charge levied on merchants, not directly on consumers. Banks have been advised to ensure these costs are not passed on to customers. The debate, however, continues. While the framework is designed to affect only larger merchants and higher-value transactions, some critics fear that businesses operating on thin margins might eventually increase prices to absorb the cost. On the other hand, the move has faced legal challenges, with a PIL filed in the Supreme Court. The court has sought responses from the Centre and RBI but declined to stay the October 15 rollout, allowing the new framework to proceed while the legal questions are examined.
