For years, the most powerful part of UPI's value proposition could be expressed in one word: free. Customers could scan and pay without a transaction charge, while merchants could accept bank-account-funded UPI payments without a merchant discount rate (MDR).
From 15 October 2026, that description will need more precision. A 0.4% MDR will apply to specified person-to-merchant (P2M) UPI transactions above ₹2,000, capped at ₹300 for transactions of ₹75,000 and above. Person-to-person transfers, merchant payments up to ₹2,000, and eligible small-merchant transactions will remain free.
The easy response is to ask whether MDR is good or bad. That framing is too narrow. Merchants need a more practical question: what does the new framework mean for our payment economics, operations and customer experience?
Start with facts, not the headline rate
MDR is the fee a merchant pays within the payment ecosystem for processing an eligible transaction. It is shared among participating entities such as banks, payment service providers and UPI application providers. It is not a government tax, and it is not a fee that customers are supposed to pay.
The Ministry of Finance says roughly 96% of merchant UPI transactions will remain unaffected because they are below the ₹2,000 threshold or fall within the zero-MDR framework for small merchants. Merchants receiving up to ₹1 lakh a month through UPI QR codes under the P2PM category continue to receive zero-MDR protection.
Examples:
| Standard P2M payment | MDR before applicable GST |
|---|
| ₹2,000 | ₹0 |
| ₹3,000 | ₹12 |
| ₹10,000 | ₹40 |
| ₹50,000 | ₹200 |
| ₹75,000 or more | Capped at ₹300 |
There are separate rates for specified categories. Eligible transactions above ₹2,000 in railways, telecommunications, insurance, fuel and agricultural inputs attract a flat ₹5 MDR. Capital-market transactions attract 0.02%, capped at ₹300.
Why reasonable people see the change differently
The case for MDR begins with a basic distinction: zero price to the merchant did not mean zero cost to the system. Banks, payment providers and apps still had to operate infrastructure, manage fraud and disputes, support merchants and expand acceptance. The new framework is intended to create a revenue pool for maintaining and extending that ecosystem, including a fund receiving the equivalent of 5% of MDR collections to promote small-merchant adoption.
A fee that appears modest as a percentage can matter in businesses with narrow gross margins, large average ticket sizes or very high digital volumes. Retail and fuel-trade groups have also questioned whether thresholds and category concessions reflect their operating realities. Merchants will watch closely for indirect price increases, incorrect classification and any friction that nudges customers towards another payment method.
Payment infrastructure needs durable economics, and merchants need predictable, proportionate acceptance costs. The real test is how the framework works in practice.
The impact will differ sharply by merchant
A neighbourhood café with an average bill of ₹350 and a furniture retailer with an average bill of ₹35,000 do not have the same MDR exposure. Nor do a high-margin marketplace and a fuel outlet with regulated or thin margins.
Merchants should not multiply total UPI sales by 0.4% and call it their expected cost. They should examine five things.
- Map the transactions that are actually exposed. Separate P2P from P2M, transactions up to and above ₹2,000, small-merchant eligibility, and special merchant categories. Model the change using at least three months of transaction-level data.
- Confirm merchant classification. The category assigned to a merchant can affect the applicable rate. Businesses should verify their merchant category, QR configuration, and acquiring arrangement before the effective date.
- Measure the full cost of acceptance. MDR is one line in a broader equation that includes settlement speed, payment success, cash handling, reconciliation effort, refunds, fraud management, and customer conversion. A payment method should be judged by net commercial value, not one fee in isolation.
- Prepare finance and tax workflows. Reconciliation should separately capture transaction value, MDR, applicable GST, net settlement, and the corresponding invoice. This matters for cost allocation, margin reporting and any eligible input tax credit.
- Protect the customer experience. The framework states that customers should not pay the MDR and UPI apps cannot impose platform or hidden fees. Merchant teams should align checkout copy, store staff and support scripts so customers do not receive conflicting information.
What merchants should expect in return?
The debate should not end at whether MDR exists. Merchants should ask what the ecosystem delivers for it: transparent pricing, correct classification, reliable payment performance, clear settlement reports, accessible support and fast resolution when transactions fail or disputes arise.
Providers, meanwhile, should make charges understandable at the transaction and settlement level. If merchants cannot identify why a fee was applied, reconcile it cleanly or challenge an error, even a low rate will create mistrust.
UPI's success was built on simplicity. Its commercial model now needs to preserve that simplicity while becoming more sustainable.
Conclusion: Measure before judging
The introduction of MDR does not make UPI expensive for every merchant, just as the 96% unaffected figure does not mean every business can ignore it. Exposure depends on ticket size, category, margin, and transaction mix.
Merchants should avoid both reflexive conclusions: that any fee will reverse digital adoption, or that a small percentage cannot affect business economics. The better response is to measure exposure, confirm classification, prepare reconciliation, and judge the payment rail by the value it delivers.
The 0.4% rate may dominate the headline. For merchants, the more important story begins after the headline—in the data.
