RBI’s Surplus and the UPI Cost Debate: Rethinking the Zero-MDR Model
Subject:Indian Economy
Context
With UPI transaction volumes scaling unprecedented heights, the debate over who bears the operational costs of digital public infrastructure (DPI) has intensified. Statements by RBI Governor Sanjay Malhotra highlighting the economic unsustainability of completely free transactions—currently absorbed by banks and the National Payments Corporation of India (NPCI)—have coincided with legislative shifts, sparking discussions on introducing a Merchant Discount Rate (MDR).
Understanding the Merchant Discount Rate (MDR)
- Definition: MDR is a fee paid by a merchant to payment processing entities, issuing banks, acquirers, and network providers for facilitating digital transactions (credit cards, debit cards, UPI).
- Mechanics: It typically ranges between 1% and 3% for cards, calculated as a percentage of the transaction amount, and is automatically deducted during batch settlement.
- Regulatory Guardrails: Traditionally, RBI rules have barred merchants from directly passing MDR charges onto consumers. However, structural changes are being contemplated to remedy the financial strain on payment service providers.
Legislative Shifts and Policy Proposals
- The Taxation and Other Laws (Amendment) Bill, 2026: This legislation empowers the Government to notify specific categories of UPI transactions that may attract an MDR, relaxing earlier strict prohibitions on levying MDR on UPI.
- Targeted Scope: Initial proposals suggest levying MDR on large and mid-sized merchants with an annual turnover of ₹1–1.5 crore for transactions above ₹2,000. However, the broad wording of the Bill leaves room for future expansion.
- Economic Ripple Effects: If implemented, micro-levies on merchants risk being indirectly passed down to consumers through inflated retail prices, potentially cooling down the phenomenal growth momentum of peer-to-merchant (P2M) digital payments.
The Numbers: UPI Operational Costs vs. RBI’s Financial Firepower
Banking industry estimates place the operational cost of routing a single UPI transaction between ₹0.40 and ₹1.
- Aggregate Cost Burden: During 2025–26, India recorded roughly 24,161.69 crore UPI transactions, translating to an estimated annual operating cost of ₹9,664 crore to ₹24,161 crore.
- The RBI Surplus Comparison:
- In the fiscal year 2025–26, the RBI earned approximately ₹4.3 lakh crore and transferred a massive ₹2.9 lakh crore surplus to the Union Government.
- The total estimated cost of running the entire national UPI network accounts for a mere 3% to 8.5% of the RBI’s annual surplus transfer.
- Between 2021–22 and 2025–26, RBI’s surplus transfers surged by 857%, comfortably outpacing the 425% growth in UPI transaction volumes over the same timeframe.
Core Arguments: Public Financing vs. Market-Driven Viability
The Case for Central Bank or Public Subsidisation
- Preserving Financial Inclusion: Zero-cost transactions are credited as the primary engine driving India’s fintech revolution, bringing millions of small vendors and unbanked citizens into the formal digital economy.
- Leveraging Central Bank Windfalls: Given the exponential growth of RBI’s surplus transfers to the exchequer, a fraction of these earnings could be earmarked to permanently subsidize public digital goods like UPI, insulating consumers and small merchants from hidden fees.
The Case for Reintroducing MDR (The Banking Sector Stand)
- Ecosystem Sustainability: Forcing banks and NPCI to indefinitely shoulder billions of rupees in infrastructure, cybersecurity, and maintenance costs without revenue streams threatens long-term technological upgrades and service reliability.
- Preventing Infrastructure Fatigue: Without transaction-linked revenues, financial institutions have limited commercial incentives to expand digital infrastructure into deep rural interiors.
Conclusion
The debate over UPI monetization is a classic tension point between financial inclusion and commercial viability. While introducing an MDR risks stoking inflation and dampening small-business digital adoption, utilizing the RBI’s robust balance sheet to backstop public infrastructure offers a viable alternative to safeguard India’s digital economy without penalizing end-users.
