First, What Is an MDR?
MDR stands for Merchant Discount Rate. It isn't a tax paid to the government. Instead, it’s a fee that merchants pay to payment ecosystem participants for processing digital transactions. This includes the customer's bank (issuer bank), the merchant's
bank (acquirer), and the payment app provider. Think of it as a service charge for ensuring a payment is securely and instantly transferred from a customer's account to the merchant's. For years, UPI transactions had a zero-MDR policy to encourage digital adoption. This new rule marks a partial shift away from that, aiming to create a revenue stream to help maintain and upgrade the massive infrastructure behind UPI.
The New Rule, Explained
From October 15, 2026, a Merchant Discount Rate (MDR) will apply to certain UPI transactions. Specifically, a 0.4% charge will be levied on person-to-merchant (P2M) payments that are over ₹2,000. This fee is paid by the merchant, not the customer. The government has explicitly stated that banks and payment apps are prohibited from passing this cost on to consumers. For very large transactions of ₹75,000 or more, the MDR is capped at a flat rate of ₹300. For example, on a ₹5,000 purchase, the merchant would incur an MDR of ₹20. On a ₹1,00,000 purchase, the capped fee would be ₹300.
Why 96% of Transactions Are Unaffected
The headline figure is accurate because the new MDR rule is designed with very specific exemptions that cover the bulk of UPI activity. According to government data, these exemptions mean about 96% of merchant UPI transactions will not attract any fee. Here’s why: all person-to-person (P2P) transfers, like sending money to friends or family, remain completely free, regardless of the amount. These P2P payments make up a huge portion of UPI's total value. Secondly, all merchant payments up to ₹2,000 are exempt. Since most daily retail transactions fall under this limit, they remain free. Thirdly, a special provision protects small merchants, like street vendors and neighbourhood shops, who receive up to ₹1 lakh per month via UPI QR codes; they will continue to enjoy zero MDR on all transactions.
Who Does It Actually Impact?
The new MDR primarily affects medium to large-scale businesses that process a significant volume of UPI transactions valued above ₹2,000. For these merchants, the 0.4% fee becomes a new operational cost, similar to what they already pay for accepting credit or debit card payments. However, this UPI MDR is still considerably lower than the typical 1.5% to 2.5% MDR associated with credit cards. Some essential sectors have been given special, lower rates. For instance, payments for railways, fuel, telecom, and insurance above ₹2,000 will incur a flat MDR of just ₹5 per transaction, not the 0.4% rate. This is designed to shield these critical services from a significant cost increase.
What This Means in Practice
For the average user, nothing changes. Your UPI payments for groceries, tea, or sending money home remain free. You will not be charged an extra fee at checkout. For most small businesses, the status quo is maintained thanks to the ₹2,000 threshold and the small merchant exemption. The biggest change is for larger retailers and e-commerce platforms, who will now factor this cost into their payment processing expenses. While they are not supposed to pass the charge on directly, this cost may be indirectly absorbed into their overall business and pricing structures over time, just like any other operational expense. Ultimately, the move is seen as a way to ensure the long-term financial sustainability of the payment processors and banks that keep the UPI system running smoothly.
