DBS and Citi completed a cross-border U.S. dollar payment between Singapore and the United States using tokenized bank deposits. The weekend transaction settled within minutes through the Swift Digital Ledger.
The test shows how commercial banks could support round-the-clock international payments without relying on public stablecoins or cryptocurrencies, part of a broader shift our guide on why stablecoin rails are replacing wire transfers has been tracking.
What the Banks Actually Tested
The banks completed the payment through Citi’s New York office on September 5. DBS announced the transaction on September 7, describing it as the first successful weekend USD payment between Singapore and the United States.
The payment used tokenized deposits through Swift’s blockchain-based Digital Ledger. Tokenized deposits represent commercial-bank money in digital form rather than privately issued stablecoins circulating on public blockchains.
The Straits Times highlighted how the transaction let the banks move dollars outside traditional banking hours.
DBS said the payment took minutes, compared to conventional cross-border transfers that can take up to two business days once time-zone differences, processing cutoffs, and weekends interrupt settlement.
| Feature | Conventional Cross-Border Payment | DBS-Citi Test |
| Settlement time | Can take up to two business days | Completed within minutes |
| Availability | Affected by cutoffs, weekends, and time zones | Completed over a weekend |
| Form of money | Conventional bank deposits | Tokenized bank deposits |
| Infrastructure | Existing correspondent-payment systems | Swift Digital Ledger |
| Current status | Established banking service | Controlled proof of concept |
Table 1. Conventional Settlement vs. the DBS-Citi Test
The transaction is part of a wider Swift proof of concept involving major international banks. Citi previously processed live transactions with First Abu Dhabi Bank and Singapore’s OCBC through the same ledger.
Citi said the controlled proof-of-concept phase runs from July through December 2026: DBS and Citi demonstrated a live payment, but neither bank announced broad commercial access for corporate customers.
Why This Matters for Corporate Treasury Teams
Weekend settlement could help companies move cash between markets without waiting for banks in both jurisdictions to reopen, useful for e-commerce platforms, digital-service providers, and multinationals operating continuously across time zones.
Faster settlement could also improve cash-flow visibility, letting treasury teams move liquidity between subsidiaries more quickly, cover obligations sooner, and respond to changing foreign-exchange conditions without a weekend delay working against them.
The test also shows banks adopting blockchain infrastructure without replacing regulated deposits with public crypto assets. Swift connects participating institutions and their tokenized-money systems while established banks continue managing customer relationships and compliance controls, rather than routing payments through a separate, unregulated network.
DBS already operates DBS Token Services and DBS Treasury Tokens for programmable institutional transfers, and is the only Asian-headquartered bank in the 12-bank group helping design Swift’s ledger architecture, giving it an early role in shaping how the broader system develops.
What Would Confirm This Is More Than a Pilot
The next test is whether the system can move from controlled transactions into a reliable commercial service available to ordinary corporate customers. DBS and Citi did not disclose the payment amount, transaction fees, customer eligibility criteria, supported jurisdictions beyond this single corridor, or a general launch date for wider access.
Swift and the participating banks must also demonstrate the ledger can operate at scale across more currencies, institutions, and regulatory systems than the handful involved in this proof of concept so far. Until then, the transaction represents technical progress rather than the launch of a universally available payment network that businesses can rely on today.
What this means for you: If you’re tracking how banks are building 24/7 cross-border payment infrastructure, DBS and Citi’s test shows tokenized deposits settling in minutes over a weekend, a real technical milestone, but not yet a commercial service you can access, since eligibility, fees, and a launch date remain undisclosed.
This is not financial advice. This transaction remains a controlled proof of concept, and commercial availability, fees, and eligibility have not been confirmed.
