Bernstein has estimated that a modest merchant discount rate, or MDR, of 40 basis points on UPI transactions could create a revenue pool of roughly Rs 27,000 crore by FY28, underscoring how India's most widely used digital payments rail may eventually become a meaningful commercial ecosystem. The estimate points to a potential shift in the economics of UPI, which has so far scaled largely on the back of zero-cost acceptance for merchants and consumers, with the government and industry repeatedly balancing rapid adoption against the need for long-term infrastructure funding.
The brokerage's view is significant because it frames MDR not as a broad-based charge on all UPI usage, but as a targeted levy that could still leave the system cheaper than traditional card payments. Bernstein said the proposed charge would remain well below card fees and would exempt many smaller transactions, suggesting that policymakers could preserve UPI's mass-market appeal while creating a sustainable revenue stream for the payments stack.
Revenue Pool Potential
Bernstein's estimate implies that the UPI ecosystem could evolve into a sizeable fee-generating market if transaction volumes continue to compound at their current pace. The Rs 27,000 crore figure by FY28 reflects the sheer scale of UPI adoption across retail commerce, peer-to-peer transfers, and merchant payments, as well as the possibility that even a low take rate can translate into substantial absolute revenue when applied across billions of transactions.
The brokerage said issuing banks and UPI applications would receive substantial portions of the estimated pool. Merchant-side payment apps and acquiring banks would also capture meaningful shares, indicating that the economics of UPI could be distributed across multiple layers of the payments chain rather than concentrated in a single participant. That structure may help align incentives for continued investment in fraud controls, uptime, customer support, and merchant onboarding.
For the broader fintech and mobility ecosystem, the prospect of monetised UPI rails matters because digital payments increasingly sit at the centre of consumer spending, subscription billing, ride-hailing, fuel payments, EV charging, and small-ticket commerce. As these use cases expand, the ability to fund infrastructure without relying entirely on subsidies or cross-subsidisation becomes more important.
Policy Balance Ahead
The idea of an MDR on UPI has long been politically sensitive. UPI has been promoted as a public digital utility, and any move to impose charges risks backlash from merchants and consumers who have become accustomed to free acceptance. At the same time, the cost of maintaining a high-volume, real-time payments network is not trivial. Banks, app providers, and payment processors must invest continuously in technology, compliance, and security to sustain the system's reliability at national scale.
Bernstein's framing suggests that a carefully designed MDR could be positioned as a sustainability measure rather than a broad tax on digital payments. By keeping the charge materially below card MDR levels and exempting smaller transactions, the structure could protect low-value commerce, where fee sensitivity is highest, while allowing larger merchants and higher-value transactions to contribute to the cost of the network.
That distinction is important for sectors such as automotive retail, EV charging, and mobility services, where transaction values can vary widely. Larger-ticket payments, recurring fleet expenses, and merchant-heavy ecosystems are more likely to absorb modest fees than fragmented, low-value consumer transactions. If implemented, such a structure could reshape how payment providers price services across these segments.
Winners In The Stack
The biggest beneficiaries of a monetised UPI model would likely be the institutions already embedded in the payments chain. Issuing banks stand to gain from a formal revenue stream tied to transaction volumes, while UPI apps could see improved economics if they are allocated a share of the levy. Merchant-side payment apps and acquiring banks would also gain a clearer path to monetisation, potentially strengthening competition among platforms that have so far competed mainly on distribution and user experience.
The larger market implication is that UPI may be entering a new phase: from pure adoption to sustainable economics. If transaction growth remains strong, even a small MDR could unlock a large and recurring revenue pool without materially undermining the affordability that made UPI dominant. Bernstein's estimate suggests that the debate is no longer only about whether UPI should be charged, but how to design a fee structure that preserves scale while funding the rails that support it.