Inside China's mBridge: The CBDC Platform That Moved $55 Billion and Is Preparing to Challenge SWIFT

The latest expansion came in early June 2026, when Macao officially joined the platform as its sixth member, with 11 commercial banks authorized to access it from day one . The Bank of Communications' Macao branch immediately completed two transactions, including a 500-million-yuan ($73.8 million) cross-border collection in digital yuan for Far East Horizon Ltd . The platform is also believed to have 31 observing members, including major G7 institutions like the Bank of England and the Bank of Japan, though the reliability of this claim varies across sources .

Who's building it: the six central banks

The core participants in mBridge represent a corridor stretching from East Asia to the Gulf:

• People's Bank of China – via its Digital Currency Institute
• Hong Kong Monetary Authority
• Bank of Thailand
• Central Bank of the United Arab Emirates
• Saudi Central Bank – joined as a full participant in June 2024
• Monetary Authority of Macao – went live in June 2026

The project was originally incubated by the BIS Innovation Hub in Hong Kong, which provided strong technical and governance support before withdrawing from operational involvement . The handover to the central banks signals that mBridge is now sovereign-led infrastructure, not merely a research experiment.

The technical architecture: why mBridge differs from SWIFT

The distinction between mBridge and SWIFT is not just about speed—it is about what each system actually does. SWIFT is a financial messaging network: it transmits payment instructions between banks, but the actual money moves later through a chain of correspondent banks that maintain reciprocal nostro/vostro accounts . That chain can involve three to five intermediaries and take one to three business days to settle .

mBridge uses custom-built distributed ledger technology (DLT) that combines messaging and settlement in a single atomic transaction . The platform supports real-time, peer-to-peer cross-border payments and foreign-exchange transactions with payment-versus-payment (PvP) settlement, meaning both legs of a currency exchange are settled simultaneously—eliminating the settlement risk inherent in traditional correspondent banking .

In practice, this means:

• Speed: Cross-border settlements complete in 6 to 9 seconds, compared to 1–3 days through SWIFT correspondent banking .
• Cost: Available documentation shows transaction fees reduced by up to 98% versus traditional banking rails, and the commercial rollout targets fees roughly half those of SWIFT .
• Settlement finality: The DLT architecture enables real-time gross settlement (RTGS-like) finality in under 10 seconds, compared to hours or days on legacy systems .

It is important to note that these figures come from a mix of official project documentation and third-party reports of varying reliability. The BIS's own project report confirms the potential improvements in speed, transparency, and settlement-risk reduction without providing percentage-based fee reduction claims . Claims of specific cost savings in individual transactions—such as an 82% fee reduction for a Vietnam-to-China coffee export payment—surface in user-generated content and should be treated with appropriate caution .

How much money is actually moving

The headline numbers are striking but benefit from context. By November 2025, mBridge had processed 4,047 transactions worth approximately $55.49 billion . This represents a roughly 2,500-fold increase in value since the platform's early pilot in 2022, when 20 commercial banks across four jurisdictions completed just over 160 real-value payments totaling about $22 million .

However, the digital yuan accounts for approximately 95% of all mBridge volume . This concentration suggests that, for now, mBridge functions primarily as a cross-border rail for China's own CBDC rather than a genuinely multi-currency platform. The Peterson Institute for International Economics has observed that the platform's total of 4,047 transactions for around $55 billion confirms that "the digital currency is not yet playing a meaningful role to drive internationalization of China's currency" .

For perspective: the global SWIFT network processes roughly $5 trillion per day, and global cross-border payments cost businesses over $120 billion in fees annually . mBridge's cumulative volume represents just a tiny fraction of daily global settlement activity.

The strategic picture: de-dollarization, Belt and Road, and the yuan

Where mBridge matters most is not in the current volume but in the infrastructure it establishes. Reporting frames the platform as capable of rerouting cross-border payments along Belt and Road trade corridors and reducing the dollar's grip in specific trade channels . Because mBridge is a CBDC-based settlement platform that operates outside traditional correspondent-banking architecture, it can be viewed as part of a broader effort to diversify international payment rails away from dollar-centric channels .

China's domestic digital yuan is already the world's largest live CBDC experiment, with cumulative transactions exceeding $2.3 trillion by late 2025—an 800% increase from 2023 . The cross-border mBridge platform provides the wholesale infrastructure layer that, in principle, could connect this domestic CBDC ecosystem to trading partners across Asia and the Gulf.

However, available sources do not document a direct link between mBridge and yuan appreciation trends, nor do they confirm that the platform is being used to facilitate Iran-related payment flows . Caution is warranted: while some commentary speculates about sanctions-circumvention use cases, the documented reporting describes mBridge as a platform focused on efficiency, cost reduction, and trade corridor integration rather than explicit sanctions avoidance .

The stronger documented point is that a new type of cross-border payment infrastructure is being commercialized. It settles central bank money in near-real time, at lower cost, on rails built outside the legacy correspondent-banking system. Whether it scales to genuinely challenge SWIFT remains to be seen—but the foundation is now in production.