- SWIFT’s weakness is structural, not procedural. Its reliance on correspondent banking — with pre-funded accounts, sequential processing, and multi-day settlement — cannot be fixed through software upgrades like GPI or ISO 20022 alone. The architecture itself is the constraint.
- Blockchain systems already meet G20 payment targets that traditional rails have not. The XRP Ledger and Stellar achieve near-instant finality at negligible cost. The G20’s 2027 target of 75% of payments settling within one hour remains unmet by conventional correspondent banking.
- Central bank experiments (mBridge, Dunbar, Agorá) are validating ledger-native settlement at an institutional level. These are not startup pilots — they signal that the future of cross-border settlement may not require a standalone messaging network at all.
The global financial messaging network that underpins trillions of dollars in daily cross-border transfers is not about to disappear. But a new academic study argues it may be approaching the end of its usefulness as a standalone system — and that the real question isn’t whether blockchain replaces SWIFT, but what role SWIFT can carve out in a world where it no longer controls the whole transaction.
That finding, from a master’s thesis published in January 2026 by Po-ling Daniel Wong at National Sun Yat-sen University’s Institute of Global Asset Management, challenges a narrative that has dominated fintech discourse for years: that distributed ledger technology will eventually make traditional interbank messaging obsolete. Wong’s research reaches a more nuanced conclusion — one that has significant implications for banks, central banks, and anyone who sends or receives money across borders.
The Problem With How International Payments Actually Work
To understand why this matters, it helps to know how a typical international wire transfer actually works today. When a business in Taiwan pays a supplier in Germany, their bank doesn’t directly contact the German bank and move money. Instead, it sends a message — through SWIFT — instructing a chain of correspondent banks to credit and debit accounts along the way. The actual money moves through a series of pre-funded accounts that banks maintain with each other in different currencies, called nostro and vostro accounts. The whole process can take one to five business days and cost the sender anywhere from 3% to over 14% of the transaction value, depending on who processes it.
SWIFT, founded in Brussels in 1973, handles the messaging layer of this process. It connects more than 11,000 financial institutions across 200 jurisdictions and processes tens of millions of messages daily. It is, as the paper puts it, the “nervous system” of international finance. But SWIFT doesn’t actually settle anything. It just tells banks what to do with each other’s money.
That distinction is at the heart of what blockchain threatens to upend.
What Blockchain Actually Does Differently
Platforms built on distributed ledgers — Ripple’s XRP Ledger, Stellar, and increasingly central bank-backed experimental systems — don’t separate the message from the money. When a transaction is initiated on these networks, the instruction and the settlement happen in the same layer, simultaneously. The XRP Ledger, for example, typically finalises transactions within three to five seconds at a cost measured in fractions of a cent. Stellar achieves similar performance.
That’s not an incremental improvement over SWIFT. It’s an architectural difference.
The paper’s quantitative comparison is stark: correspondent banking averages 1–5 business days for settlement and costs global users an average of 6.49% per transaction (World Bank, Q1 2025 data). Bank-mediated transfers average 14.55%. Blockchain rails, by contrast, deliver near-instant finality at negligible marginal cost. The G20 has set a target for 75% of cross-border payments to settle within one hour by 2027 — a benchmark current correspondent banking infrastructure has not yet consistently met.
Blockchain platforms also introduce programmability. Smart contracts allow conditions to be embedded directly into transactions: funds can be automatically released only after identity checks clear, sanctions lists are screened, or goods are confirmed delivered. None of this is possible through SWIFT’s message-based architecture.
Why SWIFT Isn’t Going Away — And What That Reveals
Despite this performance gap, Wong’s analysis stops well short of predicting SWIFT’s demise. The reason comes down to something blockchain advocates often underestimate: institutional embeddedness.
SWIFT’s durability isn’t primarily technical. It survives because regulators in more than 200 jurisdictions trust it, because switching costs for the world’s largest banks are enormous, and because its governance model — a member-owned cooperative — gives it legitimacy that no public blockchain currently matches. When a systemically important payment needs to clear with legal certainty under multiple regulatory regimes, SWIFT’s compliance infrastructure still carries weight that a permissionless network cannot replicate.
The paper also examines SWIFT’s own modernisation efforts. Its Global Payments Innovation (GPI) programme, launched in 2017, added end-to-end transaction tracking and same-day settlement commitments for participating banks. Its ongoing migration to the ISO 20022 messaging standard enriches payment data, supports better compliance screening, and makes messages more machine-readable. Both are genuine improvements.
But the paper is clear on the ceiling of these reforms: they make the existing architecture better, they don’t change what the architecture is. Settlement still happens outside SWIFT, through the same chain of correspondent banks, with the same liquidity locked in pre-funded accounts across the world.
The BIS Experiments That Change the Calculus
Perhaps the most significant section of the research deals not with private blockchain startups but with experiments led by the Bank for International Settlements — the central bank of central banks.
Project mBridge has demonstrated that multiple central banks can settle wholesale digital currencies directly on a shared ledger, bypassing correspondent banks entirely. Project Dunbar showed that central banks from different jurisdictions can transact on a common platform while each retaining sovereign control over their own currency. Project Agorá goes further still, proposing a unified ledger that integrates tokenised central bank money, commercial bank deposits, smart contracts, and compliance logic into a single execution environment — enabling atomic, real-time cross-border settlement within an institutionally governed framework.
These are not theoretical. They represent state-level validation of the architectural model that SWIFT’s correspondent banking model cannot easily replicate.
The Hybrid Future — and What SWIFT Must Become
Wong’s conclusion is not that SWIFT loses, but that the terms of competition have fundamentally shifted. The paper argues that global payments are converging on a “hybrid, multi-rail architecture” — one where blockchain platforms handle settlement and automation, while SWIFT repositions itself as something different: an interoperability layer, a compliance coordinator, a trusted identity and governance bridge between legacy systems and ledger-native networks.
That’s a plausible path. SWIFT’s ISO 20022 data standards are increasingly adopted across both traditional and digital payment rails. Its 2023 interoperability experiments with tokenised assets — including a pilot with UBS and Chainlink — suggest the organisation is at least exploring this transition. But repositioning a 50-year-old financial utility is neither quick nor guaranteed.
Geopolitical pressure adds another variable. SWIFT’s role in enforcing Western financial sanctions — most visibly in the exclusion of Russian institutions in 2022 — has accelerated the development of rival networks including China’s CIPS and Russia’s SPFS. The study notes that Russia’s messaging system had 584 institutional users by 2024, with traffic up 23% year-on-year. Financial infrastructure is becoming a geopolitical instrument, and that creates fragmentation risks SWIFT cannot control.
What the Research Doesn’t Settle
The paper is candid about its limits. It draws on publicly available policy reports and institutional data rather than proprietary bank transaction records, which means some of its cost and speed comparisons reflect published benchmarks rather than live corridor-level performance. It also focuses on large, systemically important institutions — the retail and regional fintech dynamics that drive a large share of remittance volume receive less attention.
And the central empirical question — at what point does SWIFT’s governance advantage stop outweighing its settlement disadvantage — remains open. That will depend heavily on how quickly regulatory frameworks around digital assets mature, how interoperable central bank digital currency systems become, and whether SWIFT can execute the repositioning its own research suggests is necessary.
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Why This Research Matters Now
The global cross-border payments market processes over $190 trillion annually, according to IMF estimates. Even marginal improvements in speed, cost, and transparency at scale translate into enormous real-world impacts — for businesses managing treasury across currencies, for migrant workers sending remittances home, and for financial stability more broadly.
What this research contributes is a more honest framing of the transition underway. It’s not a story of disruption where blockchain simply replaces SWIFT. It’s a story of institutional evolution, where the systems that survive will be the ones that adapt their governance model — not just their technology — to a financial world that is becoming programmable.
Whether SWIFT leads that transition or gets marginalised by it is still an open question. But the clock is running.
Disclaimer: The information in this article is for general purposes only and does not constitute financial advice. The author’s views are personal and may not reflect the views of ChainRant.com. Before making any investment decisions, you should always conduct your own research. ChainRant.com is not responsible for any financial losses.