Discuss the rationale behind RBI's move to reintroduce Merchant Discount Rate on high-value UPI transactions. How does it balance financial inclusion with the sustainability of digital payment infrastructure?

Merchant Discount Rate (MDR) — the fee a merchant pays for accepting a digital payment — was made zero for BHIM-UPI and RuPay debit cards from January 2020 through Section 10A, Payment and Settlement Systems Act, 2007 and Section 269SU, Income-tax Act, 1961 [1]. The 0.4% MDR on person-to-merchant (P2M) payments above ₹2,000, effective 15 October 2026, is therefore a calibrated partial exit driven by cost recovery, not a retreat from the less-cash economy [2].

Rationale for reintroduction

• Cost recovery: zero MDR left banks and payment service providers absorbing running costs. The Standing Committee on Finance flagged roughly ₹2,000 crore of budgetary support against an industry-estimated ₹20,700 crore operating cost — about a tenth [3].
• Fiscal unsustainability of subsidy: the incentive scheme is annual and outlay-capped (₹1,500 crore, at 0.15% on transactions up to ₹2,000) — relief, not a revenue model [4].
• Infrastructure quality: loss-making processing depresses investment in servers, fraud detection and grievance redress; the Committee warned specifically of reduced cybersecurity spending [3].
• Instrument parity: debit cards already carry MDR of up to 0.90% with undiminished acceptance [5]; 0.4% is less than half that.

Balancing inclusion with sustainability

• Threshold design: all P2P transfers and P2M payments up to ₹2,000 stay free, covering the overwhelming bulk of merchant transactions [2] — street vendors and kirana sellers remain insulated.
• Incidence and cap: the merchant, not the consumer, pays, subject to a ₹300 ceiling [2], protecting household adoption.
• Residual risk: 0.4% falls on sale value, not margin, so thin-margin sellers routinely crossing ₹2,000 bear proportionately more, with bill-splitting a plausible workaround.
• Correct metric: adoption must be judged by UPI P2M volume and value, since RBI's own benchmarking work calls currency-in-circulation a sub-optimal indicator of cash use, high-value notes being held as a store of value [6].

The move thus trades a fiscally fragile subsidy for a user-funded, thresholded revenue base. Moving to the tiered, turnover-linked structure the Standing Committee recommended [3], with transparent monitoring of merchant behaviour, would let cost recovery and last-mile inclusion advance together — sustaining the digital public infrastructure that underpins India's financial inclusion goals.