India Built the World's Largest Digital Payments System. Here Is What Comes Next.

UPI handles nearly half of all real-time payments on Earth. The next challenge is making sure every Indian can use it.

By Kritika Berman

Editorial illustration for India Built the World's Largest Digital Payments System. Here Is What Comes Next.

TLDR - What to Fix

Give every rural village a UPI merchant terminal before worrying about anything else.
Charge large companies a tiny fee to use UPI so small vendors and users stay free forever.
Make UPI work offline so bad internet cannot stop a payment from going through.

The Chai Stall That Changed Finance

Walk into a tea stall in any Indian city today. The vendor has a QR code taped to a cardboard box. You scan it. Money moves in two seconds. No card. No cash. No wait. Growing up in Chamba, I watched my father count coins for every purchase. That world is gone.

The world's most powerful digital payments system replaced it - built by India, for India, and now being copied by the world.

Editorial illustration showing an explosion of digital payment arrows radiating from a smartphone at the center, dwarfing the rest of the world, representing India's massive share of global real-time transactions.

The Scale Is Almost Impossible to Believe

India's Unified Payments Interface - a government-backed network that lets any two bank accounts send money instantly using only a phone - now handles nearly half of all real-time payment transactions on Earth. According to the National Payments Corporation of India, the system processed over 24,000 crore transactions in one financial year. That is a 12,000-fold increase from its first year of operation.

The IMF confirmed UPI is the world's largest real-time payment system by volume. India's share of global real-time payments stands at roughly 49 percent. The entire United States, Europe, and Latin America together make up the other half.

UPI now accounts for 85 percent of all digital payments in India. Over 703 banks are connected to it, covering even the most remote geographies.

Why India's Cash Economy Was So Stubborn

Before UPI, cash ruled India. Cash transactions accounted for nearly 80 percent of all transactions before UPI's launch. The older transfer system only worked during business hours, making it useless for anyone who needed to pay a supplier on a Sunday or settle a bill after 5 PM. Small merchants and the rural poor had no option but cash.

There was also a deeper problem. Government money meant for the poor passed through layers of middlemen. By the time it reached a beneficiary, a large portion was gone.

Editorial illustration of three hands in sequence — holding coins, then a basic phone, then scanning a QR code — depicting India's journey from a cash economy to digital payments.

What India Already Tried - and What Changed

India's first serious attempt at digital payments came in 2009, when the government set up NPCI to unify the country's fragmented payment systems. It built the early infrastructure but struggled to push adoption. Without real financial incentives to go digital, merchants and customers stuck with cash.

In 2013, the Congress-led government launched Direct Benefit Transfer to send government subsidies directly to bank accounts. But out of nearly 40 lakh intended beneficiaries, only 9.6 percent had bank accounts linked to Aadhaar. Without that link, the money could not reach them.

The Modi government fixed this. The Pradhan Mantri Jan Dhan Yojana, launched in 2014, opened over 550 million bank accounts - many for people who had never entered a bank before. Those accounts became the foundation for everything that followed.

UPI launched in April 2016. Demonetization in November 2016 pushed millions of merchants and customers onto digital rails almost overnight. Then, in January 2020, the government removed the Merchant Discount Rate on UPI - the small fee merchants pay banks for processing payments. A tea stall owner in Varanasi no longer paid anything to accept digital payments. That was the policy that took UPI from useful to universal.

The DBT system has saved Rs 3.48 lakh crore in leakage since implementation. Subsidy spending as a share of total government expenditure dropped from 16 percent before DBT to 9 percent after it.

The One Problem That Remains

India has built the best urban digital payments system in the world. The rural story is unfinished.

Rural UPI adoption stands at 38 percent preference, and more than 45,000 villages lack 4G coverage. According to NPCI's data, 70 percent of India's pin codes have fewer than 500 active UPI merchants. Most of rural India can send money using UPI - but cannot receive it from local businesses, because those businesses are not yet on the network.

There is also a sustainability problem. The government's incentive scheme covers only 11 percent of actual industry costs. The Union Budget allocated Rs 2,200 crore for UPI incentives in one financial year - but that number is falling short as transaction volumes explode. The industry loss from zero-MDR policy in a single financial year was estimated at Rs 10,000 to 12,000 crore.

The Parliamentary Standing Committee has recommended a tiered model: street vendors and small merchants stay free, large commercial entities pay a small fee. That is the right direction.

Editorial illustration of three city skylines representing India, Brazil, and Singapore, each with a digital signal arc above it and connecting lines between them, comparing their digital payments systems.

How Other Countries Fixed This

Brazil's PIX - Fast and Mandatory

Brazil launched its instant payments system, Pix, in November 2020, with one key rule: all major financial institutions were required to participate. Within two and a half years Pix was used by over 140 million individuals - about 80 percent of Brazil's adult population - and brought 71.5 million people into digital payments for the first time.

The key lesson: mandatory bank participation closed the adoption gap that voluntary systems leave open. India's UPI relies on incentives. Brazil forced the infrastructure to become universal from day one.

Singapore's PayNow - Regulation with Commercial Sense

Singapore launched PayNow in 2017. Mobile payment adoption led to an 18 percent increase in small business formation within 15 months. Self-employed business owners saw 6.9 percent higher revenues after adoption.

Singapore's payments regulator allowed a structured fee model for commercial participants while keeping person-to-person transfers free. Digital payments adoption now stands at 92 percent. The system is financially self-sustaining. India's UPI is larger by orders of magnitude - but Singapore's financing model is what India needs to copy.

Who Is Accountable

The Ministry of Finance's Department of Financial Services controls UPI incentive allocations and MDR policy. NPCI runs the platform under Reserve Bank of India oversight. The government allocated Rs 2,200 crore for UPI promotion against a system that costs many times that to run. The Department of Financial Services has confirmed the gap in writing. Nobody gets fired for it.

What Would It Cost

The IMF estimates wider adoption of digital payments could increase India's GDP per capita by 3 to 4 percentage points. The cost of fixing the rural merchant gap is primarily connectivity and device access. A small MDR of 0.2 to 0.3 percent on large merchants would cover acquiring costs and generate the revenue needed for rural expansion - without any cost to street vendors or small businesses.

What Needs to Happen

First - rural connectivity must be treated as payments infrastructure. BharatNet must be measured by UPI merchant activation rates, not just fiber laid.

Second - the zero-MDR model needs a tiered replacement. Small merchants and street vendors stay free. Large retailers, e-commerce platforms, and institutions pay a modest fee. This funds fraud prevention, system upgrades, and rural outreach without loading the cost onto the public exchequer.

Third - UPI Lite, which allows offline payments without internet, must be scaled rapidly into areas with poor connectivity. The feature exists. The deployment does not match the need.

Frequently Asked Questions

What is UPI and why does India have it?

UPI stands for Unified Payments Interface. It is a system that lets any two bank accounts in India send money to each other instantly using just a phone. NPCI - the National Payments Corporation of India - built it and launched it in 2016. The Reserve Bank of India regulates it. The government created it because India had over a billion people but most of them could not easily move money between banks. UPI fixed that.

How big is UPI compared to other payment systems?

According to NPCI and the IMF, UPI processes nearly 49 percent of all real-time payment transactions in the world. In one financial year it processed over 24,000 crore transactions. It handles more daily transactions than Visa. No other country has built anything at this scale.

Is UPI free? Who pays for it?

For users and most merchants, UPI is free. The government removed merchant fees in January 2020. But running the system costs real money. According to the Department of Financial Services, the government's incentive scheme covers only 11 percent of actual costs. Banks and payment companies absorb the rest. The RBI Governor has warned this is not sustainable long term. A tiered model - where large companies pay a small fee while small vendors stay free - is now being discussed.

Why are rural areas still left behind on digital payments?

Two problems. First, more than 45,000 villages lack 4G coverage. Without internet, UPI does not work. Second, 70 percent of India's pin codes have fewer than 500 active UPI merchants. That means even people who have a UPI account cannot use it locally because the shops around them are not set up to accept it. India's Finance Secretary confirmed this is the biggest remaining challenge.

How did the Jan Dhan Yojana help digital payments grow?

The Pradhan Mantri Jan Dhan Yojana, launched by Prime Minister Modi in 2014, opened over 550 million bank accounts. Many of these were zero-balance accounts for people who had never had a bank account before. Without a bank account, you cannot use UPI. Jan Dhan gave hundreds of millions of Indians their first account - and turned them into potential digital payment users.

What did the Direct Benefit Transfer program achieve?

DBT is a system that sends government welfare money directly into people's bank accounts instead of through middlemen. According to a quantitative assessment by the BlueKraft Digital Foundation, DBT has saved Rs 3.48 lakh crore in leakage since implementation. Subsidy spending as a share of the government budget dropped from 16 percent to 9 percent. Beneficiary coverage grew 16 times. Food subsidies alone saved Rs 1.85 lakh crore through Aadhaar-linked authentication.

Which countries have built similar systems and what can India learn?

Brazil launched Pix in November 2020. It made bank participation mandatory and reached 80 percent of the adult population in under three years. The IMF found it brought over 71 million people into digital payments who had never used them before. Singapore's PayNow used a commercial fee model for large entities while keeping transfers free for individuals - which made the system financially self-sustaining. India needs Brazil's inclusion scale AND Singapore's sustainable financing model.