NPCI International Payments Limited (NIPL) has been on an ambitious push to export UPI to the world. The idea is compelling: take India’s spectacularly successful real-time payment system and replicate it internationally, allowing Indian travellers to pay abroad with their UPI apps and eventually enabling foreign users to adopt UPI-like infrastructure.

As of March 2026, UPI merchant payments are live in Singapore, the UAE, France, Sri Lanka, Mauritius, Nepal, and Bhutan. QR-code based acceptance has been enabled at select merchants in Japan and South Korea. On paper, the global footprint is growing fast.

The reality on the ground is more complicated.

Transaction Volumes Tell a Sobering Story

While NPCI doesn’t publish granular cross-border transaction data, payment industry sources suggest that international UPI volumes remain a tiny fraction of domestic throughput. Domestic UPI processed over 16 billion transactions in January 2026 alone. International volumes across all partner countries are estimated at under 5 million monthly.

Part of this is simply awareness. Indian tourists in Singapore who’ve been using UPI domestically for years don’t necessarily know they can use it at Changi Airport or Mustafa Centre. Merchant-side awareness is even lower. A shopkeeper in Paris who’s been enabled for UPI acceptance through their payment terminal provider may not know to suggest it to Indian customers.

But the deeper issues are structural.

The Currency Conversion Problem

When you pay with UPI in India, the transaction settles in rupees almost instantly. When you pay with UPI in Singapore, there’s a currency conversion layer. Your rupee account needs to be debited, the amount converted to Singapore dollars, and the merchant credited in SGD.

This conversion isn’t happening at interbank rates. The FX markup varies by corridor but typically runs 1.5-3% above the mid-market rate. For the customer, this often makes UPI more expensive than simply using a credit card with no foreign transaction fees—especially cards from banks like HDFC or ICICI that have reduced or eliminated forex markups on premium cards.

The settlement timeline is also different. Domestic UPI settles in seconds. Cross-border UPI settlement can take 24-48 hours depending on the corridor and the intermediary banks involved. This creates float management challenges for both NPCI and the receiving payment networks.

Regulatory Fragmentation Across Corridors

Each country NPCI partners with has its own regulatory framework for cross-border payments. The bilateral agreements NIPL has to negotiate are individually complex.

In the UAE, the partnership with Mashreq Bank and NEOPAY has been relatively smooth because the UAE’s regulatory environment is accommodative of payment innovation. Singapore’s PayNow-UPI linkage benefits from MAS being a forward-looking regulator with an existing real-time payment infrastructure.

But expanding into the EU has been significantly harder. PSD2 regulations require strong customer authentication, data localisation requirements vary by member state, and the European Central Bank has been cautious about allowing non-European payment systems to gain significant market share—particularly after watching the dominance of Visa and Mastercard in European card payments.

Japan presents different challenges. The Japanese payment ecosystem is fragmented across multiple QR code systems (PayPay, LINE Pay, Rakuten Pay, d Barai) and the Bank of Japan has prioritised domestic interoperability before integrating international payment rails.

The Competition NPCI Didn’t Fully Anticipate

When UPI was being conceptualised for international expansion, the assumption was that India’s cost advantage—near-zero transaction fees—would be a powerful differentiator. And domestically, that’s true. UPI’s zero-MDR policy has been transformative for small merchants.

But internationally, UPI can’t offer zero-MDR. Cross-border transactions involve correspondent banking costs, FX conversion costs, and compliance costs that need to be recovered. The resulting fee structure makes UPI competitive with but not dramatically cheaper than existing alternatives. As one AI consultancy recently observed when analysing payment system expansion strategies, the cost advantage that works domestically often evaporates when you add cross-border complexity layers.

Meanwhile, other countries are building their own real-time payment systems. Brazil’s Pix, Thailand’s PromptPay, and Malaysia’s DuitNow all replicate core UPI functionality domestically. The strategic value of UPI linkages with these systems depends on bilateral trade and tourism volumes that, in several corridors, remain modest.

What’s Next for International UPI

NPCI’s stated target is 20 countries by end of 2026. That’s achievable on a technical integration level—most of the remaining target countries are in Southeast Asia and the Middle East, where regulatory barriers are lower.

The harder question is whether these integrations translate into meaningful transaction volumes. The Singapore corridor, which has been live the longest and connects two countries with significant bilateral travel and trade, is the best test case. If UPI can’t achieve substantial adoption there, the outlook for smaller corridors is dim.

For Indian banks, the cross-border UPI play ties into broader remittance strategy. India receives over $125 billion annually in inward remittances, according to World Bank data. If UPI can capture even a fraction of those flows from traditional wire transfer channels, the volume math changes significantly.

The technology works. The partnerships are in place. The missing piece is consumer behaviour—and that’s always the hardest thing to change.