Scan, Pay, Repeat: The UPI Story
A comic about how India went from cash, cheques and queues to scanning a QR code for a ₹10 chai, and why the free ride is now ending. A curious young learner asks, and a wise mentor who saw it all answers: how UPI was born, how big it is now, and where it goes next.
curious young learner, hasn't touched cash in a month
wise mentor, remembers cheque books
THE PASTBefore the QR code
Cash, cheques and queues
ZappyHow did you even pay people before UPI?
Prof. BoltCash in the shirt pocket. Rent by cheque, which took 2–3 days to clear. Sending money home meant a money order or standing in a bank queue.
Cards existed, but…
- Shops paid around 1–2% per swipe, so small shops refused.
- Card machines cost money and were mostly in cities.
- Mobile wallets worked only inside their own app.
Paying was costly for shops and slow for people. A ₹10 payment had no good digital option at all.
2016: one pipe for every bank
April 2016 NPCI, the banks' payments body, launches UPI with 21 banks.
The big idea: one shared pipe. Any app, any bank, one address like name@bank, money moves in seconds, 24×7.
November 2016 Demonetisation. ₹500 and ₹1,000 notes are cancelled overnight.
KABOOM!Cash vanished from ATMs, and people who had never paid digitally were forced to try. The government's BHIM app followed in December.
Prof. BoltMost countries let card companies or one big app own payments. India built a public road and let every app drive on it. That was the real genius.
Free, then everywhere
2020 The government makes UPI payments free for merchants. Zero fee.
Suddenly the vegetable seller, the auto driver and the temple donation box all put up a QR sticker. It cost them nothing.
The pandemic Nobody wanted to touch notes.
Free + simple + every bank = the fastest money habit change in history.
THE PRESENTThe biggest real-time payment system on earth
UPI by the numbers
Yearly payments
FY 2016-17 vs FY 2025-26, about 13,000 times more. Value in FY26: ₹314 lakh crore.
- Record month: 2,451 crore payments in August 2026.
- About 80 crore payments every single day.
- 55 crore users, 740+ banks.
- About 84% of India's retail digital payments.
India's share of all the world's real-time payments, per the IMF. One country, half the planet's instant payments.
A public road with two big buses
Share of UPI payments (mid-2026, rough)
ZappyWait, both leaders are backed by US giants? And India's biggest bank?
Prof. BoltSBI's own app did about 0.1% in July. The banks built the road and then missed the bus.
NPCI wants no app above 30% share. That deadline has been pushed back again and again, now to December 2026.
The free lunch ends
From 15 October 2026 Merchants pay a fee of 0.4% on UPI payments above ₹2,000.
KA-CHUNK!- Fee capped at ₹300 on payments above ₹75,000.
- Lower rates for railways, telecom, mutual funds and shares.
- Your ₹10 chai and ₹500 groceries: still free.
Who pays? The shop, not you. At least on paper.
Prof. BoltRunning 80 crore payments a day costs real money: servers, security, fraud checks. Somebody had to pay. 0.4% is still among the cheapest anywhere.
Where there's money, there are thieves
UPI fraud amount (₹ crore a year)
*Till November 2025 only. About 10–13 lakh fraud cases a year.
The classic trick
You never need your PIN to receive money. PIN means money is going out. Always.
Fraud is small compared to the total, but it lands on real people, often the elderly.
UPI goes abroad
Live in about a dozen countries (shops and/or money transfers)
ZappySo I can scan a QR near the Eiffel Tower?
Prof. BoltAt some places, yes. Switch on "international" in your app first, and carry a card as backup. It's still patchy.
RBI's goal: UPI in 20 countries by 2028-29. Brazil, the EU and others are studying it as a model.
THE FUTUREWhat's coming, and Prof. Bolt's guesses
From paying to borrowing
Already here, growing fast
- Credit on UPI: pay with a RuPay credit card or a bank credit line by scanning the same QR.
- UPI Lite: tiny payments without a PIN, even when the bank server is slow.
- UPI 123PAY: for basic feature phones, no smartphone needed.
Prof. BoltPayments make little money. Loans, insurance and investments make a lot. Every payment app now wants to become your bank, your broker and your insurer.
Credit on a QR is easy to tap and easy to forget. "Scan now, pay later" can become the new credit card trap.
Who gets the new money?
Possible fee income for payment apps by March 2028, by one brokerage estimate.
With 80% of the value, the two leaders get most of it. That gives them more money to push into villages and small towns.
Smaller apps like Navi and super.money did win some share by 2026, so the duopoly is not frozen.
Big gets bigger, unless the 30% cap is actually enforced. Watch December 2026.
THE DEEP DIVEThe research behind the headlines
What does one "free" payment really cost?
The cost per payment (industry estimates differ)
Servers, fraud checks, bank links and customer complaints for every single tap.
One industry estimate puts the total yearly cost of UPI and RuPay at about ₹20,700 crore.
What the government paid banks (₹ crore a year)
About ₹8,730 crore in total from FY22 to FY25. It pays 0.15% on small-shop payments up to ₹2,000.
A worked example (our arithmetic)
At 80 crore payments a day, even small subsidies add up to thousands of crores.
Prof. BoltFollow the numbers: cost rising with volume, government support shrinking from ₹3,600 crore to about ₹2,000 crore. That gap is exactly why the 0.4% fee on big payments arrived in October. "Free" was always paid for by someone, mostly banks and taxpayers.
UPI vs Brazil's Pix vs cards
| Measure | UPI (India) | Pix (Brazil) | Cards (worldwide) |
|---|---|---|---|
| Launched | 2016 | 2020 | Decades ago |
| Run by | NPCI, owned by banks, under RBI | Brazil's central bank | Private networks (Visa, Mastercard…) |
| Payments a year | ~24,000 crore (FY26) | ~6,350 crore (2024) | — |
| Share of the country's payments | ~84% of retail digital payments | 55% of all payments (H1 2026) | Cards: ~31% of Brazil's payments (H1 2026) |
| Fee for shops | Zero (0.4% above ₹2,000 from Oct 2026) | ~0.33% average | Debit ~1.1%, credit ~2.3% (Brazil, IMF paper) |
| Who controls the apps | Two US-owned apps >80% | Banks' own apps | — |
Payment systems are now geopolitics
In July 2026 the US put 25% tariffs on most Brazilian goods, naming Pix among practices that hurt US card companies. Washington has also flagged UPI for favouring domestic systems.
ZappyWait, America is annoyed that our payments are cheap?
Prof. BoltEvery rupee a shop doesn't pay in card fees is a fee a card company doesn't earn. Public payment roads are a direct threat to a very profitable private toll business.
The cash paradox
Cash in circulation (₹ lakh crore, RBI)
More than double since demonetisation, and growing 11.1% a year, the fastest in years.
But relative to the economy…
Cash as a share of GDP, FY21 to FY26 (SBI Research). The economy grows faster than cash does.
The RBI's own yardstick
One month's UPI payments as a share of all cash outstanding, early 2022 to July 2026.
Both are true: Indians use far more UPI and hold more cash. Cash has moved from "how we pay" to "what we keep": savings at home, rural trade, emergencies. That's also why it's smart to keep a little.
One switch, a country's payments
Outages on record
- 26 Mar 2025: about 3.5 hours of evening disruption; payments that day fell 7%.
- 12 Apr 2025: success rate dropped to ~50% for two hours, ~80% for three more. NPCI blamed a flood of status-check requests from banks.
- Outlook Business counted four major outages in a year.
- 1 Apr 2026: an SBI maintenance overrun hit users across cities.
Why one hour matters (our arithmetic)
More in peak evening hours.
Every UPI payment, even PIN-free UPI Lite, passes through NPCI's switch. Experts at ORF and elsewhere call this a single point of failure and want a proper backup.
Prof. BoltRailways have two tracks; hospitals have generators. A system carrying 85% of a nation's digital payments needs a spare too. Until then, your backup is a card and some cash.
Credit on UPI, by the numbers
Shops that accept…
Linking credit to UPI opened credit to every QR sticker.
RuPay credit cards take off
RuPay's share of credit cards, FY23 to FY24 (Kiwi). RuPay-on-UPI now makes up about 38% of India's credit card transactions by count.
How people use it
- Average spend ~₹1,125 vs ~₹4,000 on a normal card.
- About 40 uses a month, ~8× a normal cardholder.
- Over ₹10,000 crore a month spent on credit via UPI (Juspay).
Small, frequent, easy credit is exactly how debt builds without anyone noticing. A pre-approved credit line on UPI is a loan, not a card: check its interest-free period, rewards and dispute route before you use it.
UPI 2030: three endings
The good ending. 100 crore users, UPI in 20+ countries, cheap credit reaching small shops and farmers. The fee keeps the system safe without hurting small payments.
The likely ending. UPI keeps growing, but two apps still rule. Small fees creep into more payments, and most new money is made on loans, not on payments.
The bad ending. Easy QR credit piles up bad debt, a big outage or cyber attack hits a system the whole country depends on, and frauds grow faster than safeguards.
Prof. BoltThese are my guesses, not forecasts. But remember: when one system carries 80 crore payments a day, its failure is everyone's failure. Keep a little cash and a backup card. Old habits have their uses.
So what should Zappy do?
As a user
- Never enter your PIN to receive money.
- Never share screen or install "support" apps for strangers.
- Set a daily limit. Keep a separate bank account for UPI with only spending money.
- Report fraud fast: 1930 helpline or cybercrime.gov.in.
If you run a shop or clinic
Big bills above ₹2,000 now cost you up to 0.4%. Small ones are still free. Check your app's statement and compare providers.
ZappyAny career angle in this?
Prof. BoltFintech is hiring: fraud detection, credit scoring, payments abroad. A good field to learn, whatever your degree.
Fridge-door cheat sheet
Past
- 2016: UPI launched, one pipe for all banks.
- Demonetisation pushed people to try it.
- 2020: zero fee → QR codes everywhere.
Present
- 24,162 crore payments, ₹314 lakh crore in FY26.
- ~80 crore payments a day; ~49% of world's real-time payments.
- PhonePe + Google Pay ≈ 80%.
- 0.4% merchant fee above ₹2,000 from 15 Oct 2026.
Deep dive
- "Free" UPI costs 40 paise–₹2 a payment; subsidy fell from ₹3,631 cr to ~₹2,000 cr.
- Pix charges shops ~0.33%; cards 1–2.3%; UPI zero below ₹2,000.
- Cash hit ₹40 lakh cr, but fell from 14.4% to 11% of GDP.
- One NPCI switch carries all; outages hit ~3 crore payments an hour.
- Credit on UPI: 50 m QR shops vs 2–4 m card shops.
Future
- Credit on UPI is the next big thing, and the next big risk.
- 20 countries by 2028-29 is the goal.
- Watch the 30% market cap in December 2026.
- PIN = money out. Always.
Zappy and Prof. Bolt are made-up characters; UPI, the companies and the figures are real. Numbers are rounded from public sources (NPCI, PIB, Parliament replies, RBI, IMF, Reuters) and change every month. The "three endings" are opinion, not forecasts. For learning, not financial advice. Deep dive: Inc42 and Outlook Business (UPI incentive scheme), The Painted Stork and BivashVlog (cost estimates, ranges vary), Morung Express/PIB (₹8,730 cr total incentives), Brazil central bank data via The Rio Times, IMF paper via card-industry reporting, SBI Research and Moneylife (currency in circulation), Multibagg (RBI UPI-to-cash ratio), Business Standard, Outlook Money, Outlook Business and Fintech Chronicler (outages), ORF and Vajiram & Ravi (single point of failure), Kiwi via Kashmir Reader, Outlook Money, Juspay and Business Standard (credit on UPI). Per-payment and per-hour figures are our own arithmetic.