Every cross-border payment ultimately depends on underlying infrastructure — the rails that move money today, and the technologies reshaping settlement through 2040.
Every cross-border payment — whether remittance, trade payment, education payment, healthcare payment, gaming payout, wallet transfer or corporate treasury movement — ultimately depends upon underlying payment infrastructure. This chapter examines both the rails that move money today and the digital asset technologies that may reshape settlement between 2025 and 2040.
| Layer | Participants |
|---|---|
| Customer | Consumers, Corporates |
| Access Layer | Wallets, Banks |
| Orchestration | Nium, Thunes, TerraPay |
| Payment Rail | SWIFT, RTP, Cards |
| Settlement | Banks, Stablecoins |
| Liquidity | Treasury Providers |
Table 14.2/14.10 — The five-layer global payment infrastructure market map.
Founded in 1973, SWIFT reaches 200+ countries, 11,000+ institutions and processes 50+ million daily messages — still the dominant international banking network, modernising through SWIFT GPI and ISO 20022 migration. Correspondent banking remains the historical backbone (Bank A → Correspondent → Correspondent → Bank B), with a declining share but continued importance for large-value payments.
| Network | Country / Region | Strategic Role |
|---|---|---|
| UPI | India | World's largest RTP ecosystem; cross-border integrations with Singapore, UAE, France, Nepal |
| PIX | Brazil | One of the most successful RTP launches globally |
| PayNow | Singapore | Regional interoperability leader; key partner to UPI, Project Nexus |
| FedNow | USA | Federal Reserve-operated; domestic foundation for future interoperability |
| SEPA Instant | European Economic Area | Future European payment backbone |
Project Nexus, sponsored by the Bank for International Settlements, aims to connect existing RTP systems globally rather than creating a new network — a potential "SWIFT for RTP Networks." Payment orchestration ("connect once, access many rails") is the future competitive battleground, led by Nium, Thunes, TerraPay, Banking Circle and Airwallex. ISO 20022 is the future global messaging standard, delivering rich data, better compliance and improved reconciliation.
The cross-border payments value chain spans six interlocking participant layers, from balance-sheet-holding banks at the core through money movement specialists to consumer- and merchant-facing wallets and platforms at the edge. No single rail will dominate globally — the future is multi-rail, multi-currency, multi-network, AI-orchestrated infrastructure.
Primary: SWIFT, BIS Project Nexus publications. Secondary: Nium, Thunes and TerraPay market disclosures.
