For a decade, UPI’s most powerful proposition could be expressed in three words: instant, universal and free.
From October 15, one part of that proposition will change. India is not putting a price on UPI for consumers, but it is beginning to put a price on the infrastructure that makes large merchant payments possible.
The National Payments Corporation of India (NPCI) has introduced a Merchant Discount Rate (MDR) of 0.4% on person-to-merchant (P2M) UPI transactions above ₹2,000. The charge will be paid by merchants rather than customers, while person-to-person transfers will remain free irrespective of value.
The new regime marks the end of more than six years of zero-MDR merchant payments and represents a significant recalibration of the economics underpinning India’s dominant digital-payment network.
The change comes at a remarkable point in UPI’s evolution. NPCI data show that the network processed 24.51 billion transactions worth ₹29.82 lakh crore in August 2026 alone, compared with 23.66 billion transactions worth ₹29.88 lakh crore in July. There were 752 banks live on the network in August. UPI has therefore moved far beyond being simply another payment option; it has become critical national financial infrastructure.
The question confronting policymakers is consequently different from the one India faced during UPI’s early years. The challenge is no longer primarily how to persuade Indians to adopt digital payments. It is how to finance, secure and continuously upgrade a system handling tens of billions of transactions every month without undermining the low-cost model responsible for its success.
From subsidised expansion to sustainable infrastructure
The zero-MDR regime played an important role in accelerating UPI adoption. But payments are not actually costless. Banks, acquiring institutions, payment service providers and technology companies must maintain servers, fraud-monitoring systems, cybersecurity infrastructure, customer support and increasingly sophisticated risk-management capabilities.
Until now, government incentives have partly compensated participants for the absence of MDR. The Department of Financial Services, for instance, recorded an outlay of ₹3,637 crore for its FY2023-24 incentive scheme covering RuPay debit cards and low-value BHIM-UPI merchant transactions, including ₹3,270 crore for BHIM-UPI.
The new structure begins moving part of that cost from the government towards the commercial payment ecosystem.
“Sustained investment in technology, cybersecurity, fraud prevention and reliability is required to scale UPI to 90% of all retail payments. MDR will allow for this investment,” Pine Labs CEO Amrish Rau said.
The RBI has similarly described MDR as an “important step towards strengthening the long-term sustainability of India’s digital payments ecosystem,” while stressing that UPI transactions remain free for consumers.
The economics are carefully calibrated. For ordinary P2M payments exceeding ₹2,000, merchants will pay 0.4%. A ₹10,000 purchase, for instance, would generate an MDR of ₹40. But the charge is capped at ₹300 for transactions of ₹75,000 and above. The revenue will be distributed among the institutions facilitating the transaction, with the payer’s bank receiving the largest share and the remainder going to the merchant-acquiring bank, payment app and other payment-service participants.
The exemptions reveal the policy strategy
The most significant feature of the framework may not be the 0.4% rate but the extensive architecture of exemptions around it.
Small merchants receiving up to ₹1 lakh a month through UPI QR payments under the P2PM classification will continue to enjoy zero MDR. QR-based merchant payments in rural and semi-urban areas will also remain free. According to the government, only around 4% of merchant transactions will actually be affected because most transactions are either below ₹2,000 or qualify for the small-merchant exemption.
Essential and high-volume sectors receive another form of protection. Railways, telecom, insurance, fuel, agricultural inputs and specified categories will pay a flat ₹5 on transactions above ₹2,000 instead of the percentage-based charge. These categories account for around 17% of P2M transaction volume but approximately 46% of merchant UPI value, according to the government.
Capital-market payments receive yet another tariff: transactions involving mutual funds, securities, stockbrokers and related entities will attract MDR of only 0.02%, capped at ₹300. The intention is explicitly to avoid discouraging retail participation in formal financial markets.
The architecture suggests that policymakers are attempting something more sophisticated than simply monetising UPI. They are introducing commercial pricing where merchants are considered capable of absorbing it while preserving zero-cost access for consumers, small businesses and strategically important categories.
The real test will be at the checkout counter
The biggest implementation risk is straightforward: a fee imposed on merchants can still become a cost borne indirectly by consumers.
The Finance Ministry has said UPI app providers cannot impose platform or hidden fees, and banks have been advised to ensure merchants do not pass MDR charges to customers.
Enforcing that distinction may prove harder than designing it. Large organised retailers can absorb 0.4% as part of their payment-acceptance costs, particularly when compared with the economics of card payments. Smaller businesses operating just above the exemption threshold may react differently. Some could encourage cash, offer discounts for alternative payment methods or attempt to impose an explicit “UPI charge”.
That makes merchant behaviour the crucial variable. The success of the policy will depend on whether NPCI, banks and payment-service providers can detect surcharge practices and establish effective grievance mechanisms for customers.
There is also a competition dimension. Zero MDR helped turn UPI into an extraordinarily attractive payment rail, but it simultaneously compressed revenues available to banks and payment companies. A modest MDR creates a commercial incentive to invest in acceptance infrastructure, fraud detection and new services. It could also make the payments business more viable for smaller players competing with dominant apps.
The government is additionally creating a dedicated fund, financed through 5% of total MDR collections, to promote UPI adoption among small merchants. NPCI has said the structure will be finalised in consultation with the RBI within three months.
The larger significance of October 15, therefore, goes beyond a 0.4% fee. UPI is entering a second phase of its development. The first phase was about scale: make digital payments ubiquitous by making them frictionless and effectively free. The next phase is about sustainability: determining who pays for the enormous technological, cybersecurity and financial infrastructure required to keep that system reliable.
The policy has drawn the line at the merchant rather than the consumer, and at larger transactions rather than everyday payments. Whether that line holds in practice will determine whether India can give UPI a sustainable revenue model without weakening the simplicity and near-zero-cost experience that made it one of the country’s most successful pieces of digital public infrastructure.
