Real-Time Payments in 2026: How Instant Rails Reshape Checkout

The biggest structural shift in payments over the last decade is not a new card or wallet — it is the rise of real-time payments: account-to-account transfers that settle in seconds, run by central banks and national operators, and increasingly stitched together across borders. For merchants in emerging markets, these rails are no longer the future; they are the present. This guide explains the state of real-time payments in 2026 and what it means for how you get paid.

The scale of the shift

Real-time payment volumes have grown explosively. By ACI Worldwide's count, the world processed about 266 billion real-time transactions in 2023, up more than 40% in a single year, with forecasts pointing toward 575 billion by 2028. The growth is concentrated exactly where many merchants want to expand:

• India alone accounts for roughly half of all global real-time transactions, via UPI.
• Brazil is the next-largest, where Pix made up over half of all financial transactions in the second half of 2025.
• Fast systems are now live across Southeast Asia (PromptPay, DuitNow, QRIS, VietQR, InstaPay), South Asia (UPI, Raast) and beyond.

In these markets, instant A2A is becoming the default way consumers pay — not a fringe alternative.

Why merchants should care

Real-time rails are not just "another method." They change the economics and mechanics of getting paid:

• Instant settlement improves cash flow versus waiting days for card funds.
• Lower acceptance cost than international cards in many markets (UPI's zero-MDR model is the extreme case).
• High approval rates, because these are domestic transactions the banking system trusts.
• No card-style chargebacks, which reduces dispute fraud but shifts your refund and risk strategy toward pre-transaction checks and native refund flows.
• Reach to consumers who have a bank or wallet account but no card.

The combined effect is that, in markets like Brazil and India, building your checkout around the instant rail rather than around cards is simply the higher-converting, lower-cost choice.

Cross-border is the next frontier

Until recently, real-time systems were domestic islands. That is changing fast through bilateral QR linkages — Singapore's PayNow connected to Thailand's PromptPay, Malaysia's DuitNow linked to Indonesia, Thailand, Singapore, China and Cambodia, India's UPI accepted in the UAE, Singapore, France, Nepal and more. A traveler or cross-border shopper can increasingly pay with their home app abroad.

The most ambitious effort is Project Nexus, coordinated through the Bank for International Settlements, which aims to interlink multiple countries' instant systems through a single connection rather than dozens of bilateral ones. Its founding participants include India, Malaysia, the Philippines, Singapore and Thailand, with a dedicated entity established in Singapore to run it and a go-live targeted in the mid-2020s. If it delivers, sending an instant cross-border payment could become as routine as a domestic one.

What this means for your strategy

1. Prioritize the instant rail in each market — Pix, UPI, PromptPay, DuitNow, QRIS, InstaPay, Raast — often ahead of cards.
2. Re-think risk for finality: with no chargebacks, invest in screening before the payment and in clean, fast refunds after.
3. Design for instant confirmation so you can release goods the moment funds arrive.
4. Watch cross-border linkages and Nexus, especially if you serve travelers or regional buyers.
5. Plan payouts on instant rails too — disbursing to sellers, contractors or customers in real time is increasingly possible and expected.

Accessing the rails

You don't connect to each central bank yourself; you reach these rails through a provider or orchestration layer that maintains the connections. A platform like PiqPay exposes instant local methods — Pix, UPI and others — through the same unified API it uses for cards and wallets, and also supports payouts, so both collecting and disbursing on fast rails happen from one integration.

The bottom line

Real-time payments have already won in the largest emerging markets, and cross-border interoperability is catching up quickly. Merchants who treat instant rails as the centerpiece of their checkout — not a secondary option — align themselves with how billions of people now actually move money.

Want to accept and pay out on instant rails through one integration? Talk to PiqPay.