Model Answer

Unified Payments Interface (UPI) is an interoperable, real-time payment system developed by NPCI that enables instant bank-to-bank transactions. While zero Merchant Discount Rate (MDR) has accelerated its mass adoption, the growing scale of UPI has revived the debate between its public-good character and financial sustainability.

Why UPI should remain free

1. Zero charges encourage mass adoption of digital payments. e.g: UPI processed over 24,000 crore transactions in FY 2025-26.
2. Free payments promote financial inclusion among low-income users. e.g: UPI 123PAY enables feature-phone-based transactions.
3. Small merchants benefit from lower transaction costs. e.g: Street vendors accepting payments through QR codes.
4. UPI reduces dependence on cash and associated economic costs. e.g: Printing, transportation and cash-management expenses.
5. Network effects strengthen India's Digital Public Infrastructure. e.g: UPI accounts for around 80% of India's retail digital payment volume.

Why a completely free model faces sustainability concerns

1. Payment infrastructure involves significant operational costs. e.g: Banks and payment service providers bear switching, settlement and technology costs.
2. Zero MDR limits revenue available for infrastructure expansion. e.g: RBI and payment ecosystem stakeholders have earlier flagged sustainability concerns.
3. Rising transaction volumes require continuous investment in cybersecurity and capacity. e.g: UPI now handles over 2,000 crore transactions monthly.
4. Government subsidies create a recurring fiscal burden. e.g: ₹1,500 crore incentive scheme approved for low-value BHIM-UPI merchant transactions for FY 2024-25.
5. Absence of adequate commercial incentives may discourage innovation. e.g: Fintech firms incur expenditure on fraud prevention, grievance redressal and technology.

Balancing affordability with sustainability

1. UPI should be treated as digital public infrastructure rather than purely as a commercial payment product. e.g: Aadhaar-UPI-Jan Dhan architecture.
2. Small-value transactions deserve stronger protection from charges. e.g: Government incentives for merchant transactions up to ₹2,000.
3. Larger commercial transactions can be differentiated from ordinary retail payments. e.g: A calibrated MDR framework for large merchants could be examined.
4. Revenue can be generated through value-added services rather than basic payments. e.g: Credit, merchant analytics and financial services.
5. Policy should preserve interoperability and competition. e.g: RBI-NPCI oversight of the UPI ecosystem.

Way Forward

1. Continue zero charges for consumers and small-value merchant transactions to protect financial inclusion.
2. Develop a calibrated compensation framework for banks and payment providers based on transaction costs and service quality.
3. Periodically review government incentives and alternative revenue models to ensure long-term infrastructure investment without undermining UPI's accessibility.

UPI's success rests on its universality and affordability, but free payments cannot mean a costless ecosystem. India needs a sustainable financing model that preserves UPI as an inclusive digital public good.