The government has confirmed it will not extend the October 15 deadline for reintroducing Merchant Discount Rate on select UPI transactions. MDR, a fee charged on digital payment processing, was waived for UPI in 2020. Its selective reintroduction marks a significant policy shift for India's digital payments ecosystem. Separately, the GST Council is expected to review whether the 18% GST currently applicable to MDR charges should be revised, adding a second layer of uncertainty for merchants and payment aggregators.

MDR is the fee that a merchant's bank charges for processing a digital payment. It is split among the acquiring bank, the issuing bank, and the payment network. In January 2020, the government waived MDR on UPI and RuPay debit card transactions to accelerate digital payment adoption, compensating banks through a separate government incentive scheme.

Reintroducing MDR on select UPI transactions reverses that approach. The government now appears to signal that the payment infrastructure has matured enough to be commercially self-sustaining. However, MDR reintroduction carries two cost layers for merchants: the MDR itself, and 18% GST on that fee, since payment processing services attract GST under the standard rate for financial services.

The GST Council's potential review matters because even a small MDR — say 0.3% — becomes meaningfully more expensive when GST is added on top of it. For small merchants and kirana stores, this could discourage UPI acceptance.

From a monetary policy and credit transmission angle, higher merchant costs can push informal transactions back to cash, reducing data trails that banks use for credit assessment — directly affecting financial inclusion metrics that RBI tracks through the Financial Inclusion Index. For UPSC, the intersection of fiscal policy (GST rate), payment regulation (RBI's oversight of payment systems), and digital public infrastructure makes this a high-value concept.