Picture this: you're buying groceries online, and instead of typing out 16-digit card numbers or waiting for OTPs, you just tap a button, and you're done. That's UPI for you.
In October 2025 alone, UPI processed over 20,000 million transactions worth over ₹27 lakh crore. Today, about 85% of all digital payments in India are made via UPI.
What started as a simple bank-to-bank transfer tool in 2016 has quietly taken over how we pay for things online.
From small purchases like a ₹50 snack delivery to big-ticket electronics, UPI is everywhere. And it's changing how Indian e-commerce works—one transaction at a time.
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How UPI is changing e-commerce payment flows
Remember when paying online meant entering your card number, expiry date, CVV, then waiting for an OTP, and hoping the page doesn't time out? UPI changed all of that.
Now, when you choose UPI at checkout, your payment app opens automatically with the amount already filled in. You just enter your PIN, and it's done. This is called the "intent flow"—no typing, no copying IDs, no switching between apps and browsers, hoping you don't lose your cart.
This matters more than you'd think. Every extra step at checkout is a chance for customers to abandon their cart. When the process is this smooth, more people actually complete their purchases. Merchants see higher conversion rates simply because the payment doesn't feel like an obstacle anymore.
Some fintech companies are making this even simpler.
Take Nimbbl's Magik UPI feature—it automatically detects and displays your UPI IDs right on the checkout screen. You don't even need to remember which ID you used or worry about typing it wrong. Just pick your ID, approve the payment, and you're done in seconds.
For businesses, this translates to fewer failed payments and faster checkouts. The real-time confirmation that comes with UPI also helps. The moment a customer pays, both parties receive an instant notification. Orders can be processed immediately, unlike COD, where you're waiting for delivery, or some card payments that take time to verify.
UPI basically removed the friction from online payments. It's now the quick, almost effortless part of buying something online—not the tedious hurdle it used to be.
Why customers (and businesses) prefer UPI
The appeal of UPI is pretty straightforward: it's fast, it's simple, and almost anyone can use it.
For customers, the biggest win is not having to share card details with every website they shop from. Your actual account information stays hidden—payments happen through a virtual address or QR code. You authorize everything with your UPI PIN, so there's bank-grade security without the risk of your card number floating around on multiple platforms.
Then there's the accessibility factor. Credit cards are still relatively uncommon in India—most people don't have one. But if you have a bank account and a smartphone, you can use UPI. That's it. No need to load money into wallets, no need to apply for cards, and wait for approval. This opened digital payments to millions of people who had previously been stuck with cash-on-delivery.
The instant confirmation is another reason people stick with UPI. You pay, and within seconds, you and the seller both know it's done. There's no waiting period, no "payment pending" anxiety. For things like food delivery or last-minute purchases, that immediacy matters.
The shift from COD to prepaid: UPI's real advantage for merchants
Here's something worth paying attention to: UPI's convenience can actually drive more customers to choose prepaid over COD.
When paying online is as simple as scanning a code or entering a PIN—no card details, no app switching, no waiting—customers don't see a reason to stick with cash-on-delivery.
The friction that made people default to COD? UPI removed it.
For businesses, this matters more than the zero processing fee. Yes, you're not making commercial revenue from payment processing, and the industry has resisted that. But prepaid UPI orders solve expensive operational problems. No cash collection logistics. Fewer returns (people are less likely to return what they've already paid for). Faster order processing since you're not waiting for delivery to confirm payment.
The money you save on COD handling, failed deliveries, and return-related losses often exceeds what you'd make from processing fees. Plus, when you actively encourage UPI payments—with small discounts or faster delivery for prepaid orders—you're not just offering convenience. You're converting high-risk COD orders into confirmed, prepaid revenue.
It's about leveraging convenience to shift customer behavior in ways that make your entire operation more efficient.
UPI vs. other payment methods
UPI didn't just add another option to the checkout page—it replaced several older methods and is catching up with the rest.
Cards still have their place, particularly for expensive purchases. When someone's buying a ₹50,000 laptop or furniture, they often prefer credit cards for EMI options or reward points. But for everyday shopping—groceries, clothes, food delivery—UPI has taken over. The gap is closing, though. Since 2022, you can link RuPay credit cards to UPI, which means you get UPI's simplicity with credit cards' flexibility. That combination could eventually erode the cards' advantage even for big-ticket items.
Mobile wallets like Paytm and Mobikwik were popular before UPI existed. Now? Most of them have pivoted to processing UPI payments instead. The wallet model required you to preload money and manage separate balances. UPI just pulls directly from your bank account in real time. Even people who still use wallets often recharge them using UPI. The dedicated wallet is essentially obsolete—UPI became India's universal digital wallet.
Net banking has been pushed to very niche segments now. Logging into your bank's website, entering credentials, waiting for OTPs—it was always clunky for retail purchases. Today, it's mostly limited to specific use cases: high-value B2B payments or financial services transactions, such as repaying large loans. For everyday e-commerce, UPI does what net banking used to—process bank payments—on your phone in a fraction of the time.
Cash on Delivery has dropped significantly. In 2018, roughly 80% of e-commerce payments were COD. By 2023, that fell to about 42%. UPI's ease of use converted many cash-preferring customers to digital payments. When paying online is as simple as handing over cash—just scan and approve—fewer people see a reason to stick with COD.
Payment Method | Speed | Accessibility | Best For |
UPI | Instant | Anyone with a bank account + phone | Daily purchases, quick checkouts |
Credit Cards | Fast (with OTP) | Limited (requires card approval) | High-value purchases, EMI, rewards |
Debit Cards | Fast (with OTP) | Moderate (requires card) | One-time use (mostly replaced by UPI) |
Mobile Wallets | Instant | Requires preloading money | Loyalty programs (otherwise replaced by UPI) |
Net Banking | Slow (login + OTP) | Requires online banking setup | Rarely used for retail anymore |
COD | On delivery | Universal | Areas with low digital trust |
The innovation layer: UPI 2.0 and beyond
UPI isn't standing still. It started as a way to send money between bank accounts, but it's evolving into something much bigger.
Credit on UPI is the most significant development. You can now link RuPay credit cards to your UPI account and pay the UPI way, with the transaction billed to your credit card. This combines UPI's simplicity with credit's flexibility—buy now, pay later —without leaving the UPI interface. Early adoption numbers show people are warming up to this, especially for larger purchases.
UPI Autopay lets you set up recurring payments for subscriptions. Monthly streaming services, utility bills, subscription boxes—all of these can now auto-debit through UPI. It's still new, but it opens the door for more e-commerce businesses to offer subscription models without worrying about payment collection every month.
Then there's UPI Lite for small offline payments and UPI 123Pay for feature phones. These ensure that even people without smartphones or stable internet can use UPI. The goal is to leave no one behind.
UPI is also going international. India has started linking UPI with payment systems in Singapore, the UAE, and parts of Europe. It's early, but imagine being able to use UPI for cross-border e-commerce purchases or while traveling abroad. That would make international transactions as simple as domestic ones.
All of these additions mean UPI is becoming a universal payment rail—one platform that can handle everything from a ₹10 micro-payment to a ₹1 lakh purchase, from one-time buys to monthly subscriptions.
What this means for online businesses
For e-commerce merchants, UPI isn't just another payment option anymore—it's becoming the payment option.
Better conversions are the most apparent benefit. When checkout is this frictionless, fewer customers drop off. Higher success rates, faster payments, and instant confirmations all translate to more completed orders. And with zero processing fees, merchants save significantly on every transaction compared to cards.
The reach is wider, too. UPI gives businesses access to customers who never had credit cards or found wallets too complicated. That's hundreds of millions of potential buyers who can now pay digitally without any barriers.
Nimbbl's take: Making UPI work for businesses
For Indian online sellers, offering UPI isn't just about adding another payment option—it's about making it work smarter. That's where Nimbbl comes in.
Built for high-growth, digital-first businesses, Nimbbl helps merchants tap into the full potential of UPI by streamlining how customers interact with it at checkout. Instead of just dumping a list of payment methods on the screen, Nimbbl actively detects if a customer is a UPI user and intelligently nudges them toward faster, smoother payment completion. No guesswork, no extra steps. The result? Fewer drop-offs, faster payments, and happier customers.
With UPI adoption growing like wildfire, especially among younger and mobile-first shoppers, this kind of smart integration is becoming table stakes for e-commerce brands. Nimbbl helps ensure that UPI isn't just available—it's optimized.
The bottom line: If your platform doesn't prioritize UPI, you're leaving money on the table. Businesses that adapt to UPI-centric flows now will be better positioned as this shift accelerates.
