Credit Line on UPI Explained: Why It Hasn't Taken Off

UPI moved 23 billion transactions in a single month in early 2026, more real-time payment volume than most countries process in a year. It became the default way most of India pays for anything, from a cup of chai to a car, in under a decade.

In September 2023, the Reserve Bank of India tried to extend that same rail into something bigger: a way for banks to offer pre-approved credit, on demand, through the same app people already used to pay. The technology worked immediately. Ten major banks signed on. Fintech apps like Paytm, PhonePe, and Google Pay built the integrations.

Three years later, credit lines on UPI barely register. Not because the idea failed. Because nobody has finished agreeing on who gets paid, and how much, for lending money through a rail that was designed from the start to charge nobody anything at all.

A Fast Product, Stuck at a Slow Number

The RBI's original notification was specific about intent: the goal was to deepen financial inclusion and expand formal credit, particularly for people the banking system calls "new to credit," customers with no prior loan or credit card history. In December 2024, the RBI widened eligibility further, letting small finance banks, which serve smaller towns and lower-income customers, offer the same product.

On paper, the rollout looks complete. Axis Bank, State Bank of India, ICICI Bank, HDFC Bank, Bank of Baroda, Punjab National Bank, and several smaller lenders all offer credit lines on UPI today. The infrastructure exists. The banks are authorized. The apps are built.

Did You Know?

A regulated credit product built from scratch in India typically takes many months to launch, between compliance review, risk modeling, and integration work. Credit lines on UPI can go live in as little as eight to twelve weeks, because most of the plumbing, identity verification, and transaction rails already exist inside UPI itself.

The One Number Holding Up an Entire Product Category

Here's the piece that's stalled: NPCI, the nonprofit body that runs UPI, hasn't finalized what's called the interchange fee for credit-line transactions, the cut a lender earns each time someone borrows through the rail. Credit card interchange typically runs 1.8% to 2% of a transaction. NPCI has floated a lower range, somewhere around 1% to 1.2%, for UPI credit lines, but hasn't locked it in.

That gap matters more than it sounds. A basic UPI payment carries no merchant fee at all, which is part of why UPI displaced cards so completely; nobody pays to move money. A credit-line transaction is structurally different. Someone is extending a loan, and a bank won't commit the compliance staff, risk models, and customer support needed to scale a lending product without knowing what it earns for doing so.

It's the reverse of UPI's original success story. UPI won by making a transaction free for everyone involved. Bolting a for-profit lending product onto that same free rail turned out to need the one thing UPI was built to avoid: a settled price.

The Adoption Gap Nobody Can Fully See

NPCI publicizes UPI's overall numbers aggressively, monthly transaction counts, total value moved, year-over-year growth, all released and celebrated on a predictable schedule. For credit lines on UPI specifically, it publishes nothing. No transaction count, no total value disbursed, no adoption curve.

That silence is itself a signal. An institution built around publicizing its own scale doesn't usually stay quiet about a number that's going well.

Interesting fact: Credit lines on UPI were first proposed by the RBI in April 2023, five months before the formal notification that authorized them. Even the announcement itself moved slower than the underlying technology, which was ready well before the fee question was even raised.

The Product Works. The Plumbing Doesn't.

The frustrating part, for banks that have built the integration, is that the product performs well wherever it's actually used. Small-ticket credit through UPI carries a non-performing loan rate under 2%, a healthy figure by consumer lending standards. Customer acquisition costs run at roughly a fifth of what it costs to issue and market a traditional credit card, since the borrower is already inside an app they use daily.

This isn't a story about a bad idea meeting bad demand. It's what happens when a genuinely useful financial product gets built on top of infrastructure engineered around a different economic model. UPI's zero-fee design is a feature for payments and, so far, a structural obstacle for anything that needs a price attached to work.

Some of that same tension runs through the payment rail's broader rise: UPI scaled by being free, and every attempt to layer something new on top of it now has to answer the question its original design was built to sidestep.

Knowlegic Perspective

UPI's entire rise rests on a design choice: nobody pays to move money on it. That's what let it outcompete cards, cash, and every earlier digital wallet in India within a few years. It's also, it turns out, the reason the next obvious step, letting people borrow on the same rail, hasn't happened at the pace anyone expected.

Lending has never run on free. Someone always gets paid for the risk of extending credit, whether that's a bank's interest margin or a card network's interchange fee. UPI was never built with that kind of price built in, so adding credit meant negotiating one from scratch, between a nonprofit rail operator and ten different banks, each with its own read on what the number should be. That negotiation, not the technology, is what's taken three years and counting.

None of this means credit lines on UPI have failed. It means the easiest part of building India's credit rail, the technology, was finished years ago. The hardest part, deciding who gets paid, still isn't.

Sources & References

• Notifications - Reserve Bank of India, Reserve Bank of India (2023)
• RBI allows small finance banks to offer pre-sanctioned credit line on UPI, Business Standard (2025)
• Unclear guidelines hold back growth of credit line on UPI since launch, Business Standard (2025)
• NPCI Planning Lower Interchange Fee To Boost Credit Use On UPI, Inc42 (2026)
• NPCI may fix 1.2% interchange for credit line on UPI, notification next week: Report, Business Today (2024)
• The Rise of UPI Credit Lines: Why Traditional Credit Card Management Systems Fall Short, Finezza (2026)