UPI IS FREE. BUT WHO PAYS?

 

The economics behind India’s most popular digital payment system

By Murthy ASR | 4 October 2026

 

The simplest question in Indian payments

A customer scans a QR code. The phone vibrates. The payment is done. No cash changes hands, no card is inserted and, for the customer, there is usually no visible fee. That apparent simplicity is one of UPI’s greatest achievements.

But every payment still has an economic cost. Banks operate accounts and payment rails. Payment service providers maintain technology. Apps acquire and serve users. Merchants need QR infrastructure and support. The system has to handle fraud, cybersecurity, disputes, uptime and enormous transaction volumes.

So the obvious question is also the uncomfortable one: if the user is not paying, and for years the merchant was not paying either, who pays for UPI?

The answer is changing

India is now moving to a selective Merchant Discount Rate, or MDR, for specified merchant transactions. From 15 October 2026, a 0.4% MDR will apply to specified person-to-merchant (P2M) UPI transactions above ₹2,000. For transactions of ₹75,000 and above, the MDR is capped at ₹300. Certain essential and thin-margin sectors such as railways, telecommunications, insurance, fuel and agricultural inputs have a flat ₹5 MDR, while specified capital-market payments carry a 0.02% MDR capped at ₹300.

The important point is that this is not a universal UPI charge. Person-to-person payments remain completely free. Payments to merchants up to ₹2,000 remain free, and small merchants covered by the zero-MDR framework remain protected. The government says about 96% of P2M transactions will remain unaffected.

So who actually pays?

MDR is a merchant-side payment-system fee. It is not a tax collected by the government or NPCI. The fee is distributed among participants in the payment ecosystem, including banks, payment service providers and UPI application providers. The stated policy objective is to create a sustainable economic model for UPI while protecting consumers and small merchants.

That distinction matters. A ₹10,000 qualifying merchant payment, for example, would generate a nominal 0.4% MDR of ₹40 before the applicable distribution and rules. The customer is not supposed to receive a separate ₹40 UPI fee. The economic question is what the merchant does with the cost—and how the ecosystem distributes the revenue.

UPI has become too big to treat as 'just an app'

NPCI recorded 24,508.96 million UPI transactions in August 2026, worth ₹29,82,355.95 crore, with 752 banks live on the platform. That is about 24.5 billion transactions in a single month.

At this scale, UPI resembles public digital infrastructure as much as a commercial product. Reliability and security are economic necessities. A prolonged outage, rising fraud or weak investment in capacity would have consequences far beyond one payment app.

Before MDR: the government was already part of the economics

In FY2024-25, the Union Cabinet approved a ₹1,500 crore incentive scheme to promote low-value BHIM-UPI P2M transactions. The scheme provided a 0.15% incentive for qualifying transactions up to ₹2,000 made to small merchants, while maintaining zero MDR for those transactions.

In other words, the zero-MDR era was supported not simply by technology and private investment, but also by policy choices and public incentives. The new MDR framework represents a shift toward making at least part of the ecosystem pay for itself.

The case for MDR

There is a strong economic argument for selective MDR. Payment infrastructure cannot be maintained indefinitely on convenience alone. A predictable revenue stream can support investment in cybersecurity, fraud prevention, customer service, capacity and innovation. Analysts expect substantial new revenue for banks and payment firms under the new framework.

Selective pricing can also be more efficient than a blanket charge. Everyday small payments are highly price-sensitive, so protecting small merchants and low-value transactions reduces the risk of discouraging digital adoption.

But 'who pays?' has a second meaning

The official rule says MDR cannot simply be passed on to consumers as a direct charge. Yet economics rarely stops at the invoice. A merchant that faces a new cost can adjust prices, favour one payment method over another, or absorb the cost by accepting a lower margin. Those indirect effects will need to be watched rather than assumed.

For a high-margin organised retailer, a small payment cost may be manageable. For a low-margin business, even a modest recurring cost can matter. That is why the sector-specific exemptions and small-merchant protections are economically important.

The other big issue: who captures the revenue?

A new MDR creates a new revenue pool inside an ecosystem where a small number of large consumer apps already have enormous scale. Reuters reports that PhonePe and Google Pay together account for around 80% of UPI transactions. That concentration means the distribution of MDR revenue could influence competition just as much as it influences profitability.

More revenue could allow large platforms to invest more aggressively in merchant acquisition, technology and financial products. That can be positive for innovation. But if scale produces still more scale, smaller rivals could find it harder to compete. The regulator therefore faces a balancing act: create sustainable economics without weakening competition.

What the MDR debate is really about

The debate should not be framed as 'free UPI versus expensive UPI'. That is too simplistic. The real choice is between different ways of financing a national payment network.

One model relies heavily on public incentives and ecosystem participants absorbing costs. Another introduces carefully targeted merchant charges. A future model could combine transaction revenue with financial services, credit, subscriptions, advertising or other commercial activities. The right answer depends on which model delivers the best combination of reliability, affordability, competition and inclusion.

The test begins now

The success of MDR should be measured by evidence, not slogans. Are UPI transactions still growing? Do merchants continue to prefer UPI? Does service reliability improve? Does fraud fall? Do banks and payment firms invest more? Does competition remain healthy? And do consumers remain genuinely insulated from direct charges?

If the answers are positive, selective MDR could become an important step in turning UPI from a heavily subsidised growth engine into a more financially sustainable payments ecosystem. If costs migrate indirectly to merchants and consumers without corresponding improvements in the service, the policy will deserve a harder second look.

The bottom line

UPI is free at the point of use for most Indians. But it has never been free to build, operate, secure and expand.

The new MDR framework makes that hidden economics visible. It asks merchants in specified higher-value transactions to contribute to the payment ecosystem while keeping P2P payments, small-value transactions and protected small merchants largely outside the charge.

That may be a sensible evolution. But the ultimate question is not simply 'who pays?' It is 'who pays, who earns, who benefits—and does the arrangement keep UPI as open, affordable and competitive as the system that made India a global digital-payments leader?'

Key numbers

• 15 October 2026 — selective MDR framework takes effect.

• 0.4% — MDR on specified P2M transactions above ₹2,000.

• ₹300 — MDR cap on transactions of ₹75,000 and above.

• ₹5 — flat MDR in specified essential/thin-margin sectors.

• 0.02% — specified capital-market transactions, capped at ₹300.

• 96% — government estimate of P2M transactions unaffected.

• 24.51 billion — UPI transactions in August 2026.

• ₹29.82 trillion — UPI transaction value in August 2026.

• ₹1,500 crore — FY2024-25 low-value BHIM-UPI incentive scheme.

Sources

NPCI — UPI Product Statistics, August 2026.

Press Information Bureau, Ministry of Finance — UPI Continues to Remain Free for Peer to Peer Transactions and 96% of Merchant Transactions, 15 September 2026.

Press Information Bureau, Ministry of Finance — Incentive Scheme for Promotion of Low-Value BHIM-UPI Transactions, 19 March 2025.

Reuters — India’s UPI fee shake-up: What changes and why it matters, 16 September 2026.

Reuters — Big to get bigger: India’s UPI fee shift to entrench dominant incumbents, 22 September 2026.

Reuters — The hidden cost of India’s free UPI, 29 September 2026.