The Old World of Payment Costs
For decades, the cost of accepting digital payments was a straightforward, if painful, calculation for merchants. When a customer paid with a credit or debit card, the merchant never received the full transaction amount. A percentage, known as the Merchant
Discount Rate (MDR), was deducted. This fee, typically ranging from 1.5% to 2.5% for credit cards and up to 0.9% for debit cards, was split between the customer's bank, the merchant's bank, and the card network (like Visa or Mastercard). On a ₹10,000 sale, a merchant could lose ₹150 to ₹250. This percentage-based model meant higher value sales incurred proportionally higher costs, a significant factor for businesses operating on thin margins.
Enter UPI: The Zero-Cost Disruptor
Launched in 2016, UPI turned this model on its head. It allowed for instant, real-time payments directly between bank accounts. To supercharge adoption and financial inclusion, the government mandated in January 2020 that all UPI and RuPay debit card transactions would have a zero-MDR. This meant merchants could accept digital payments without paying any transaction fees. The policy was a phenomenal success, removing a major barrier for small retailers, street vendors, and micro-enterprises who swiftly adopted QR code-based payments. The annual transaction value on UPI surged from ₹0.07 lakh crore in FY 2016-17 to approximately ₹314 lakh crore in FY 2025-26.
A Fundamental Shift in Cost Calculation
UPI's dominance has fundamentally altered how merchants calculate payment costs. The old math was about percentages; the new math is about sustainability. The zero-MDR regime, while excellent for merchants, created a revenue void for the banks and payment companies that maintain the UPI infrastructure. Running these high-frequency systems carries significant operational costs for servers, cybersecurity, and customer support. The government provided subsidies, but these did not fully cover the ecosystem's expenses. This unsustainability led to a pivotal change. As of October 15, 2026, a new framework introduces a calibrated MDR for certain UPI transactions.
The New Reality: A Tiered Approach
The new system isn't a return to the old ways. It's a hybrid model designed to protect small players while ensuring the system's long-term health. Person-to-person transfers and payments to small merchants (receiving up to ₹1 lakh a month via QR code) remain free. Crucially, transactions up to ₹2,000, which make up the vast majority of UPI's volume, also remain free of charge for merchants. For larger person-to-merchant transactions above ₹2,000, a 0.4% MDR now applies. This is still significantly lower than typical credit card rates. Furthermore, the fee is capped at ₹300 for any transaction of ₹75,000 or more, making UPI highly cost-effective for large-ticket sales compared to cards. For a ₹1 lakh payment, a merchant pays ₹300 with UPI, versus potentially ₹1,500-₹2,500 with a credit card.
What This Means for Indian Businesses
For merchants, the calculation is no longer just about the percentage cost per transaction but about their specific transaction profile. A high-volume, low-value business like a local kirana store will likely see almost no change, continuing to benefit from zero-cost UPI. A business with higher average ticket sizes, like an electronics store or a professional service provider, must now factor in the 0.4% charge on larger payments. However, even for these businesses, UPI remains the most affordable digital payment option. The change forces merchants to analyze their payment mix more strategically. Encouraging customers to use UPI for high-value purchases can now generate significant savings compared to credit cards. The introduction of this fee is seen as a necessary step to fund the ecosystem's infrastructure, improve transaction success rates, and drive further innovation.
