Table of Contents
Introduction
Cross-border payments remain expensive, slow while consumers and businesses expect the same seamless experience for sending money overseas as they do for local transfers. If India’s UPI can transform domestic payments, what lessons does it offer for cross-border infrastructure? And where must we go beyond to build truly global rails?
Why the world needs better cross‑border infrastructure
Cross-border payments are a key part of global trade, remittances, and digital services. But the infrastructure that supports these payments hasn’t kept pace with today’s needs. Unlike domestic systems that are now fast and low-cost, cross-border payments are often slow, expensive, and hard to track. Following challenges explain why change is needed:
- Legacy inefficiencies: Traditional cross-border payments rely on multiple correspondent banks, Nostro/Vostro accounts, manual reconciliations, and opaque FX markups. This leads to high cost, slow settlement, and poor transparency.
- Demand shock: Cross-border flows continue to grow remittances, e‑commerce, gig economy, platform payouts, and embedded finance. The pressure is on infrastructure to scale.
- Regulation & compliance complexity: Sending money across borders involves varied AML/KYC regimes, FX controls, data localization, and intermediary oversight. Infrastructure must be in compliance.
- Digital identity & interoperability gaps: Without consistent identity and payment message standards (e.g., ISO 20022, open APIs), payments are fragmented.
Hence, infrastructure that simply stitches existing rails (SWIFT + card rails) is insufficient. The ambition must be to build public digital rails across borders, with private sector participants layered atop.
UPI’s design principles: A primer for cross-border rails
India’s UPI achieved success domestically on a few core design principles. These can inform a blueprint for cross-border infrastructure:
Current cross-border models: successes and gaps
Several models and players are working to improve cross-border payments. While each takes a different approach, most still face challenges with scale, compliance, or interoperability.
- Notable players & Innovations
- PayNow – UPI linkage (India ↔ Singapore): This corridor allows real-time fund transfers via alias or mobile number without bank account details.
- Wise, Nium, Rapyd, etc.: These are global “connectors” or overlay networks that integrate local rails (wallets, bank APIs) to route and settle cross-border flows.
- mBridge (multi‑CBDC network): A BIS-led project to enable real-time, peer-to-peer cross-border flows using central bank digital currencies.
- Cross-Border Interbank Payment System (CIPS): China’s RMB clearing network that integrates with global messaging, albeit still dependent on SWIFT’s messaging.
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Where these models fall short
- Liquidity fragmentation & settlement chaining
Many systems still rely on correspondent banking or intermediary pools, which reintroduce latency and cost. - Interoperability & trust fabrics
Overlay networks must handle mapping of identities, reconciliation, and exception flows across jurisdictions with different KYC, AML, and data norms. - Regulatory and compliance friction
Each corridor must navigate FX controls, capital flow restrictions, AML / CFT regimes, tax reporting, and data localization. - Scale vs. niche adoption tension
Many cross-border solutions prioritize high-value B2B or remittance flows less so micropayments or embedded retail cross-border use. - Sovereignty and governance dilemmas
Nations worry about capital flight, data sovereignty, crypto risks, and exposure to global rails controlled by foreign entities. - Standards divergence & network fragmentation
Multiple overlay networks with divergent API, messaging, reconciliation logic can lead to fragmentation rather than unification. - Resilience & risk management
Cross-border systems are subject to FX volatility, operational risk across time zones, cybersecurity threats, and cascading failures.
Framework: The four pillars of cross-border payment infrastructure
Building a successful cross-border payment system isn’t just about technology—it’s about getting the foundation right. A robust system needs to be fast, secure, and flexible enough to support different use cases, participants, and regulatory environments. This requires careful attention to four key layers that together make up the infrastructure:
- Clearing & Settlement Layer
– Should support real-time or near real-time settlement across jurisdictions.
– Settlement liquidity pooling and multilateral netting reduce capital costs. - Interoperability & Messaging Layer
– Standards (ISO 20022, APIs, alias-to-account mapping) for seamless interchange.
– Identity and trust federation across jurisdictions. - Compliance & Risk Layer
– Built-in AML/KYC, sanctions screening, fraud detection, FX control enforcement.
– Auditability, transparency, disclosure norms. - Ecosystem & Participation Layer
– Open access models for banks, fintechs, wallets.
– Governance model, incentive alignment, revenue models for participants.
UPI’s success hinged especially on (4) and (2) once the rails and governance were set, private actors built innovation atop them. A cross-border counterpart needs the same layering but extended across borders.
Lessons & strategic implications for emerging markets
Emerging markets have a real opportunity to shape the future of cross-border payments, not by replicating legacy models, but by building on successful domestic platforms like UPI. Here are some key lessons and actions to consider:
Start with strategic corridors: India–Singapore UPI–PayNow is a proof point. Expand to UAE, Mauritius, France, etc.
Embed UPI into global wallets/platforms: The upcoming PayPal–UPI integration is a harbinger.
Continuously evolve aliasing and fallback paths: When alias resolution fails, fall back to IBAN or account-level routing while keeping the alias experience.
Manage FX and hedging risk centrally: Infrastructure should isolate or net FX exposures for participants.
Promote regulatory interoperability: Bilateral/multilateral MOUs, harmonized compliance rules across corridors.
Ensure affordability for low-value flows: Without margin-eating costs, micropayments and remittances will stay underserved.
Evolve governance beyond single-country boards: Cross-border rails must form multilateral governance (e.g. central banks, multilateral institutions, private consortium).
Design for resilience and redundancy: Multiple settlement paths, fallback rails, dispute resolution.
Final takeaways & call to action
UPI demonstrates that well-architected digital infrastructure with proper layering, open access, identity aliasing, and governance can transform payments. But the cross-border frontier demands even deeper coordination: settlement pooling, regulatory convergence, trust fabrics, and multi-jurisdictional governance.
For countries or regions looking to bootstrap cross-border rails today:
Choose anchor corridors to prove viability (e.g. India ↔ Singapore, UAE).
Deploy an alias/identity mapping fabric for seamless UX.
Establish multilateral governance early.
Enable private sector innovation on top of rails (wallets, fintechs, platforms).
Iterate and scale carefully, with resilient fallback and risk controls.
