Why Charging for UPI Changes the Math: MDR's Hidden Cost

The Lift Line

“A toll pays for a road; it does not measure what the road is worth.”

Why This Editorial Matters for Your Exam

This op-ed in The Hindu of 7 October 2026 is by ‘Americai’ V. Narayanan, National Spokesperson of the Tamilaga Vettri Kazhagam (TVK) and a certified public and management accountant. Eight days before the 0.4 per cent merchant discount rate (MDR) on UPI begins, he asks a question the debate has largely skipped: what has UPI saved India, and what might a fee cost?

We have followed this story closely: the Supreme Court’s refusal to stay the MDR and the law behind it in a 29 September deep dive, and the case for slab pricing by a former NPCI official in a 1 October editorial. This piece adds an economist’s lens: externalities, network effects and behavioural response.

GS Paper 3: Indian economy and issues relating to mobilisation of resources; inclusive growth; effects of liberalisation; infrastructure; awareness in IT. GS Paper 2: Government policies and interventions.

Background and Context

The new charge

How UPI became free, and how that changed

What MDR is. The merchant discount rate is the fee a merchant pays its bank for accepting a digital payment. It is shared among the acquiring bank, the issuing bank, the payment app and the network. Card payments have always carried an MDR; UPI and RuPay debit cards were exempted from 2020 to encourage digital payments.

The Analysis

1. Costs are visible, savings are scattered. The author begins with an accounting asymmetry. UPI’s costs, such as servers, security and fraud controls, show up on balance sheets. Its savings do not, because they are spread across the economy:

“None of this is revenue to UPI; it is spread across banks, consumers and the exchequer.”

2. The fair point, and its flaw. The author accepts that the ecosystem needs steady income to maintain and expand UPI. But the MDR logic assumes that most of UPI’s cost should be recovered from transactions on it, ignoring its wider benefits. Every payment that moves from cash to UPI cuts costs elsewhere; every merchant who joins adds to formalisation; and every new user makes the network more useful to those already on it. The government has acted on this logic before, by spending Rs 1,500 crore in 2024-25 to incentivise low-value merchant payments, on the view that moving cash onto digital networks was worth paying for.

3. Tax or fee answers the wrong question. On 28 September, the Supreme Court, while declining to stay the levy, asked the Centre, the RBI and the NPCI to explain its legal basis, including whether the MDR was a tax or a fee. The government said nothing reaches the exchequer; the money is a settlement between banks and service providers. That, the author says, answers the legal question but not the economic one: what is India giving up?

4. The highway analogy. A toll on a highway between an industrial region and a port can be reasonable, but toll collections say little about the highway’s real return, which is the faster movement of goods and the businesses that grow with it. A port’s container fees pay for operations, but its larger contribution is the trade it enables. UPI deserves the same lens: any plan to recover its maintenance bill should ask what happens to the activity it supports once a toll is introduced.

5. Behaviour will change. The MDR may let banks and payment providers invest in resilience and expansion. But some merchants may prefer cash; others may steer customers to other payment instruments. When payments slip back to cash, the costs UPI removed return: handling, reconciliation, cash logistics and less digital visibility. The author’s central line: “If Rs 100 collected in MDR causes more than Rs 100 of economic value to disappear elsewhere, the payment system ends up better funded and the country poorer.”

6. A strategic advantage at stake. UPI and RuPay helped India build a domestic payments ecosystem at the expense of global card networks. The USTR had called India’s zero-MDR policy a market-access barrier for Visa and Mastercard, which now stand to gain from any drift back to cards. “A lasting domestic advantage should not be conceded for trade terms that can later be revised.”

7. The test. A network that millions rely on must be secure, resilient and able to grow. The harder question is what “self-sustaining” should mean. The test for the new toll, the author argues, is whether it increases India’s overall economic return from UPI after accounting for the behaviour it changes and the wider benefits the network creates.

Data and Institutions Vault

Prelims-grade facts:

The MDR framework:

• 0.4% on P2M UPI payments above Rs 2,000, capped at Rs 300; from 15 October 2026.
• Small merchants receiving up to Rs 1 lakh a month exempt; P2P transfers free.
• The Supreme Court declined a stay on 28 September 2026; it asked whether the levy is a tax or a fee.

Law and institutions:

• Payment and Settlement Systems Act, 2007: the RBI regulates payment systems; Section 10A bars charges on protected payment modes.
• NPCI: umbrella organisation for retail payments, promoted by the RBI and the Indian Banks’ Association; runs UPI, RuPay, IMPS, NACH, FASTag (NETC) and AePS.
• Zero MDR for UPI and RuPay debit cards since 2020 (effective 1 January 2020).

Scale:

• About 145 billion UPI transactions in April-September 2026, up 27%, worth about Rs 177 lakh crore (NPCI).
• Government incentive for low-value merchant UPI payments: Rs 1,500 crore in 2024-25 (as cited by the author).

Concepts:

• Network effect: a network grows more valuable to each user as more people join.
• Positive externality: a benefit to third parties that the provider is not paid for.

⚠️ Watch the trap: The MDR is paid by the merchant, not the consumer, and it does not go to the government: it is shared among banks, payment apps and the network. It applies only to merchant payments above Rs 2,000; person-to-person UPI transfers remain free.

The Debate

For the author’s view. Pricing a network with large spillovers by its own costs alone undervalues it. UPI’s biggest benefits, formalisation, credit access for small firms and lower cash costs, accrue to others. A fee that pushes even a fraction of payments back to cash could cost the economy more than it raises. The government’s own Rs 1,500 crore incentive shows it once believed the opposite of what the MDR now assumes.

The other side. Banks and payment apps have run UPI at a loss on merchant payments for years, relying on incentives that have not kept up with volumes. Underinvestment in security and fraud control would hurt users too. The fee is narrow and capped, leaves small merchants and low-value payments free, and falls on larger merchants who already pay MDR on cards. The 1 October column accepted the need for a fee and disputed only its design.

The balanced verdict. Both sides agree UPI needs reliable funding. The disagreement is over who should pay: the transacting merchant or the wider economy, through the budget. A sensible approach is to measure what happens after 15 October: whether larger merchants surcharge, refuse UPI or shift to cash and cards. If the behavioural cost is high, the case for public funding, justified by public returns, becomes stronger.

How to Think About This

Public infrastructure, private funding. UPI is a classic case of digital public infrastructure (DPI): a public platform on which private players compete. Roads, ports and power grids raise the same question: should users pay full cost, or should the state fund what creates economy-wide benefits? The answer usually lies in a mix, with user charges set low enough not to deter use.

Look for the behavioural response. In any policy answer on taxes, tolls or fees, ask how people will change their behaviour. A fee that raises revenue but shrinks the activity it taxes may be self-defeating, an idea related to the Laffer curve in taxation.

Strategic autonomy in payments. A domestic payment system is also a sovereignty asset: it protects against foreign sanctions, data concerns and dependence on global networks. Use this angle in GS2 and GS3 answers on DPI and India’s model of digital governance.

Diagram-in-Words

Takeaway Box

• Thesis: judge the UPI MDR by the net economic return it leaves, not the revenue it raises.
• The charge: 0.4% on P2M payments above Rs 2,000, capped at Rs 300, from 15 October 2026; consumers not charged directly.
• Hidden savings: cash handling, reconciliation, credit from digital records, formalisation and tax compliance.
• Precedent: the government paid Rs 1,500 crore in 2024-25 to promote low-value merchant UPI.
• Court: no stay on 28 September; tax-or-fee question; government says nothing reaches the exchequer.
• Risk: drift to cash or cards; gains for global card networks.

Sources: The Hindu, op-ed by ‘Americai’ V. Narayanan, 7 October 2026; background: Ujiyari, 29 September 2026

Source: Why Charging for UPI Changes the Math: MDR's Hidden Cost — Ujiyari.com | Free UPSC & State PCS Editorial Analysis