Central bank digital currencies, or CBDCs, are fundamentally changing how money moves across borders. By eliminating intermediaries and enabling direct settlement between central banks, CBDCs reduce transaction times from days to seconds and lower costs in ways traditional payment systems cannot match. A striking example is Project mBridge, a cross-border CBDC network connecting China, the UAE, Hong Kong, Thailand, and Saudi Arabia, which processed $55.49 billion in transactions—a 2,500-fold increase since its early 2022 pilots—with settlement occurring in just 15 seconds.
The global momentum behind CBDCs reflects a rare consensus among central banks. As of April 2026, 134 countries representing 98% of global GDP are exploring CBDC development, up dramatically from just 35 countries in 2020. Despite the scale of this shift, most CBDCs remain in pilot phases, and the three fully launched retail CBDCs (in the Bahamas, Jamaica, and Nigeria) have not yet achieved their originally projected adoption levels, signaling that transformation, while possible, does not happen automatically.
Table of Contents
- How CBDCs Address the Limitations of Traditional Cross-Border Payments
- The Global CBDC Landscape and Uneven Progress Across Regions
- Settlement Architecture and Why Speed Matters for Financial Stability
- Wholesale vs. Retail CBDCs and Their Different Use Cases
- Interoperability Challenges and the Risk of Fragmented CBDC Networks
- China’s e-CNY and Its Role as a Cross-Border Settlement Anchor
- CBDCs Enable 24/7 Settlement and Near-Instantaneous Transactions
How CBDCs Address the Limitations of Traditional Cross-Border Payments
Traditional cross-border payments rely on SWIFT, a decades-old messaging system that routes transactions through multiple intermediaries, often taking three to five business days to settle and incurring fees at each hop. CBDCs bypass this architecture entirely. When a central bank issues a digital currency on a distributed ledger, two countries can transfer funds directly to each other, with settlement happening within seconds rather than days. The efficiency gain extends beyond speed: fewer intermediaries mean lower transaction costs, reduced opportunities for errors, and complete transparency of the payment trail.
The clearest evidence comes from mBridge’s operational performance. As of early 2026, the network settled transactions in 15 seconds without requiring SWIFT intermediation, and e-CNY (China’s digital currency) comprised over 95% of settlement volume, demonstrating that one CBDC can anchor settlement infrastructure for multiple nations. The network’s 2,500-fold growth in transaction volume since 2022 suggests that when cross-border CBDC infrastructure works, adoption accelerates. However, mBridge remains a wholesale network for central banks and large institutions; retail CBDCs like Nigeria’s eNaira have struggled to gain traction with ordinary consumers, showing that technical efficiency does not guarantee real-world adoption.
The Global CBDC Landscape and Uneven Progress Across Regions
The geography of CBDC development is highly uneven, with certain regions advancing faster than others. G20 countries, representing the world’s largest economies, show strong momentum: 18 of 19 G20 nations are exploring CBDCs, and 14 are already in pilot phase. The exception is the United States, which has researched a digital dollar but has not committed to development. Meanwhile, all 11 BRICS members—including Brazil, Russia, India, China, South Africa, plus Egypt, Ethiopia, Iran, UAE, and Saudi Arabia—are actively exploring CBDCs, with nine already in pilot phase. This regional concentration suggests that CBDC development is partly driven by geopolitical dynamics and the desire to reduce dependence on Western payment infrastructure.
Current CBDC maturity varies widely. Only five CBDCs are in live retail or quasi-retail production, while approximately 40 more are in pilot phase. China’s e-CNY crossed 16 trillion yuan in cumulative transactions as of January 2026, making it by far the most actively used CBDC globally, though the People’s Bank’s reclassification of e-CNY as deposit liabilities in January 2026 signals potential shifts in how the currency functions. The European Central Bank completed its investigation phase for the Digital Euro in 2023 and expects to make a launch decision in the following legislative cycle. The UAE’s Digital Dirham is expanding throughout 2026 into peer-to-peer, commercial, and cross-border use cases, with full launch targeted for late 2026. This staggered rollout means that the cross-border payment system will likely remain hybrid for years, with some countries on CBDC rails while others still depend on SWIFT.
Settlement Architecture and Why Speed Matters for Financial Stability
The technical architecture of CBDCs enables continuous settlement, a feature that addresses one of the oldest problems in global finance: liquidity risk. In traditional systems, a bank sends a payment instruction in the morning but the receiving bank may not credit funds until evening or the next day, creating a window where both parties carry risk. CBDCs settle immediately, reducing this window to near-zero. For large cross-border transactions, this matters enormously. A multinational corporation transferring funds between subsidiaries in different time zones no longer needs to maintain large buffer balances to cover settlement delays.
Project mBridge demonstrates this principle at scale. The network’s 15-second settlement is possible because participating central banks have agreed on common rules and technical standards, and they trust each other’s CBDCs. This trust is recent and fragile; it required years of negotiation and testing before the BIS (Bank for International Settlements) launched the initial pilots in 2021. As of 2026, the BIS has transitioned its direct operational role in mBridge to the participating central banks, meaning the network now operates under their collective governance rather than the BIS acting as operator. This handover reflects confidence in the system but also introduces governance complexity, since decisions now require consensus among five or more central banks. A critical limitation of mBridge is that it remains exclusive: only member central banks and certain vetted institutions can access it, excluding smaller nations and institutions that might benefit most from faster settlement.
Wholesale vs. Retail CBDCs and Their Different Use Cases
CBDCs come in two broad flavors: wholesale (for banks and large institutions) and retail (for consumers). Wholesale CBDCs, like those powering mBridge and Project Agorá, prioritize speed and interoperability between central banks. Retail CBDCs aim to give consumers digital access to central bank money, competing with commercial bank deposits and private cryptocurrencies. The two serve different purposes and face different obstacles. Wholesale CBDCs have shown faster adoption and larger transaction volumes because they solve a clear problem: banks need efficient cross-border settlement.
Thirteen cross-border wholesale CBDC projects are now operational, with mBridge identified as the fastest-growing. Project Agorá, led by G7-aligned central banks and involving major institutions like JPMorgan, Citi, HSBC, and SWIFT, is expected to deliver findings in the first half of 2026. This G7 alternative to mBridge reflects geopolitical divisions: Western central banks are developing their own network partly to counter CBDC initiatives driven by China and Russia. Retail CBDCs, by contrast, have struggled because they require consumers to change their behavior, integrate with existing payment apps, and trust digital wallets. Nigeria’s eNaira, the Bahamas’ Sand Dollar, and Jamaica’s DCJMD have all launched but achieved fraction adoption compared to early projections, suggesting that technical capability alone does not overcome user inertia or infrastructure barriers.
Interoperability Challenges and the Risk of Fragmented CBDC Networks
One of the greatest challenges facing CBDCs is interoperability. If China, the EU, the US, and other regions each launch their own CBDC, will they be able to settle with each other? Today, no unified global standard exists, and major CBDC projects are proceeding with different technical architectures. The mBridge network uses a specific blockchain architecture; the Digital Euro and other European initiatives may use different standards; Project Agorá may follow yet another approach. A consumer or business trying to send funds from a Digital Euro wallet to an e-CNY wallet may face the same delays and intermediaries that CBDCs were supposed to eliminate.
This fragmentation is not accidental but reflects deep governance questions that CBDCs cannot sidestep. Each central bank wants to maintain control over its currency and retain the ability to enforce sanctions, conduct monetary policy, and track illicit transactions. A truly open, interoperable global CBDC system would require surrendering some of this control, which few governments are willing to do. The result is a likely future of “silos” where some CBDCs interoperate seamlessly (mBridge among participating nations, Agorá among Western allies) but gaps remain. This outcome would improve settlement within regional blocs but fall short of transforming global finance.
China’s e-CNY and Its Role as a Cross-Border Settlement Anchor
China’s e-CNY stands apart in its scale and ambition. The currency has processed 16 trillion yuan in cumulative transactions as of January 2026, dwarfing all other CBDCs combined. Within mBridge, e-CNY comprises over 95% of settlement volume, making it the de facto settlement currency for a growing cross-border network.
This dominance reflects both the size of China’s economy and deliberate policy choices to position the yuan as an alternative to the dollar in international trade. However, the January 2026 reclassification of e-CNY as deposit liabilities rather than digital currency represents an important shift. This change signals that the People’s Bank of China may be moving toward a model where e-CNY functions more like commercial bank money than true central bank digital cash. The practical implications are still unfolding, but this reclassification could affect how foreign central banks treat e-CNY reserves and whether they will accept it as settlement currency in their own corridors.
CBDCs Enable 24/7 Settlement and Near-Instantaneous Transactions
A fundamental advantage of CBDCs is that they operate around the clock. Traditional banking systems close at 5 PM; SWIFT operates on business-day cycles. CBDCs have no such constraints. A payment initiated at midnight on a Sunday can settle instantly, without waiting for bank branches to reopen.
For global supply chains, this is transformative. A manufacturer in Thailand paying a supplier in Saudi Arabia can move funds in seconds, any day, any time, improving working capital efficiency. The IMF has documented these settlement efficiency gains: CBDCs enable 24/7 functionality, near-instantaneous settlement, reduced intermediaries, and lower cross-border transaction costs compared to traditional SWIFT systems. For smaller nations or corporations unable to access traditional correspondent banking, CBDCs offer a direct path to the global financial system. When the UAE Digital Dirham fully launches in late 2026 with peer-to-peer, commercial, and cross-border capabilities, users will gain access to these benefits directly, without needing a relationship with a major international bank.