First, What Is This MDR Anyway?
Merchant Discount Rate, or MDR, is a fee that merchants pay to banks and payment service providers for processing digital transactions. For years, it's been a standard part of accepting payments via credit and debit cards. Think of it as a service charge
for enabling a seamless, cashless purchase. This fee helps cover the costs of the payment infrastructure, including technology, security, and operations. The government's decision to keep UPI free of MDR since 2020 was a key driver of its massive adoption, especially among small businesses who operate on thin margins.
The New Rule Everyone Is Talking About
From October 15, 2026, a new rule introduces a 0.4% MDR on certain person-to-merchant (P2M) UPI transactions. However, this isn't a blanket charge. The most important detail is the threshold: the MDR only applies to transactions above ₹2,000. For very large payments, the fee is capped at ₹300 for any transaction of ₹75,000 or more. This move was made to help create a sustainable revenue model for the payment ecosystem, which incurs significant costs to process billions of transactions. Crucially, the government and the National Payments Corporation of India (NPCI) have clarified that customers are not supposed to pay this fee; it is a cost for the merchant.
The Real Reason 96% of Transactions Are Exempt
The headline figure is accurate because of two major exemptions. First and foremost, the rule completely excludes all P2M transactions up to ₹2,000. According to NPCI data, these small-ticket payments make up more than 95% of the total volume of UPI merchant transactions. This single condition ensures that daily, routine purchases—like buying groceries, paying for a taxi, or grabbing a coffee—remain free for merchants. The government estimates that when all exemptions are factored in, about 96% of merchant transactions are unaffected by the new MDR.
Small Merchants Get Extra Protection
Beyond the ₹2,000 threshold, there is another significant safeguard built into the system specifically for small businesses and vendors. Merchants who receive up to ₹1 lakh per month through UPI QR codes are also completely exempt from MDR, regardless of individual transaction sizes. This special category, known as Person-to-Person-Merchant (P2PM), is designed to protect micro-businesses, street vendors, and neighbourhood kirana stores, ensuring that the push for digital adoption doesn't hurt the smallest players in the economy. This means that even if a small, eligible merchant receives a payment over ₹2,000, they will not be charged the MDR.
So Who Does Pay, and Why?
The MDR is aimed at larger, more established commercial enterprises that process higher-value transactions. A retailer selling a mobile phone for ₹25,000, for example, would now have a 0.4% MDR applied to that payment. The rationale is that these larger businesses can more easily absorb the cost, and their participation helps fund the infrastructure that everyone uses. The fees collected are not a government tax; they are distributed among the payment ecosystem participants—like banks and technology providers—to help them maintain and upgrade the UPI network's security and reliability. Special, lower MDR rates also apply to essential services and capital market transactions to encourage digital payments in those sectors.
