Central Bank Digital Currency: IMF Progress Report and Policy Considerations

Global Central Bank Digital Currency Landscape in 2024

The central bank digital currency movement has evolved from theoretical exploration into one of the most consequential monetary policy experiments in modern financial history. The International Monetary Fund’s 2024 progress report reveals that CBDC remains an emergent field demanding careful and methodical exploration by central banks worldwide. Countries’ interest in exploring both retail and wholesale CBDC continues to strengthen, driven by the convergence of technological maturity, evolving payment preferences, and the recognition that digital money will define the future of monetary systems.

The IMF staff paper, prepared under the guidance of the Monetary and Capital Markets Department, provides a comprehensive update on global CBDC developments and synthesizes insights from a new wave of CBDC virtual Handbook chapters released in November 2024. These chapters cover critical dimensions including positioning CBDC in the payments landscape, cyber resilience requirements, privacy frameworks, legal foundations, and the macro-financial implications that central banks must carefully evaluate before proceeding with implementation. The breadth of this guidance reflects the complexity of central bank digital currency design, where technical, legal, economic, and social considerations intersect in unprecedented ways.

Several countries have already crossed the threshold from exploration to implementation. The Bahamas launched its Sand Dollar in 2020, Jamaica introduced JAM-DEX, and Nigeria’s eNaira represents Africa’s first central bank digital currency. China’s digital yuan (e-CNY) pilot has expanded to cover hundreds of millions of users across major metropolitan areas. Meanwhile, the Bank for International Settlements coordinates multiple cross-border CBDC experiments that test the potential for digital currencies to transform international payment infrastructure fundamentally.

Retail CBDC vs Wholesale CBDC: Design Frameworks

The distinction between retail and wholesale central bank digital currency represents a foundational design choice that shapes every subsequent technical, legal, and policy decision in CBDC implementation. Retail CBDC is designed for use by the general public as a digital equivalent of physical cash, enabling everyday transactions between individuals, businesses, and government entities. Wholesale CBDC, by contrast, is restricted to licensed financial institutions and targets large-value interbank settlements, securities transactions, and cross-border payment operations.

The IMF progress report documents that central banks worldwide are pursuing both retail and wholesale CBDC programs, often simultaneously, recognizing that these two forms of digital currency serve complementary policy objectives. Retail CBDC addresses financial inclusion, payment system efficiency, and monetary sovereignty concerns, while wholesale CBDC targets settlement risk reduction, operational efficiency in financial market infrastructure, and the modernization of cross-border payment corridors that remain slow and expensive under traditional correspondent banking arrangements.

Design choices within each category introduce further complexity. Retail CBDC architectures range from direct models where the central bank manages all user accounts to two-tier models where commercial banks and payment service providers serve as intermediaries distributing CBDC to end users. The IMF’s analysis suggests that two-tier models are emerging as the preferred approach for most central banks, as they preserve the role of commercial banks in customer-facing services while allowing the central bank to maintain control over monetary issuance. Technology platforms span centralized database architectures, distributed ledger technology implementations, and hybrid designs that combine elements of both approaches to balance performance, privacy, and resilience requirements.

CBDC Adoption Challenges and the Chicken-and-Egg Problem

The IMF identifies adoption as perhaps the most critical challenge facing central bank digital currency initiatives worldwide. The paper warns that central banks should not take it for granted that CBDC, once launched, will be adopted and scaled up easily. Among countries that have already launched or are conducting large-scale pilots, adoption rates have been mixed, with several programs struggling to achieve meaningful transaction volumes despite significant investment in development and promotional campaigns.

The classic chicken-and-egg problem represents the most persistent adoption barrier. Consumer adoption of central bank digital currency depends heavily on merchant acceptance, as users have little incentive to hold CBDC if they cannot spend it at the places they shop. Simultaneously, merchants are reluctant to invest in CBDC acceptance infrastructure without a critical mass of customers demanding to pay with digital currency. This circular dependency creates an adoption stalemate that technological excellence alone cannot resolve and requires strategic market-making interventions by central banks and their partners.

The IMF recommends targeted deployment strategies to generate initial momentum and break the adoption deadlock. Implementing selected use cases such as person-to-person transfers, government-to-person payments, and business-to-person disbursements can target specific user groups and create immediate utility that drives organic adoption. Countries like the Bahamas and Nigeria have experimented with merchant incentive programs, reduced transaction fees, and integration with existing digital financial services platforms to accelerate adoption beyond the initial launch phase.

Cross-Border CBDC Payments and Settlement Innovation

Cross-border payments represent one of the most promising applications of central bank digital currency technology, with the potential to fundamentally transform international monetary flows that have remained slow, expensive, and opaque for decades. The IMF progress report documents extensive experimentation in multi-CBDC platforms designed to enable direct settlement between participating central banks, bypassing the complex chain of correspondent banking relationships that currently intermediate cross-border transactions.

The BIS Innovation Hub has coordinated several landmark cross-border CBDC experiments. Project mBridge, involving the central banks of China, Hong Kong, Thailand, and the UAE, has demonstrated real-value transactions settling in seconds rather than the two to five days typical of traditional correspondent banking. Project Icebreaker, connecting the central banks of Israel, Norway, and Sweden, explored a hub-and-spoke model for cross-border retail CBDC payments. Project Rialto, announced in July 2024, explores how wholesale CBDC settlement can improve instant cross-border payment efficiency.

These experiments demonstrate that multi-CBDC platforms can dramatically reduce the cost, time, and complexity of cross-border payments. The IMF notes that current cross-border payment systems rely heavily on correspondent banking infrastructure that imposes multiple intermediary steps, each adding fees, compliance requirements, and processing delays. Direct CBDC-to-CBDC settlement eliminates intermediary layers, enabling near-instantaneous settlement with full transparency and significantly reduced costs. The challenge lies in harmonizing technical standards, legal frameworks, and governance structures across participating jurisdictions—a coordination challenge that the IMF and BIS are actively working to address through their respective guidance frameworks.

Cybersecurity and Operational Resilience for CBDC Systems

The IMF’s progress report elevates cybersecurity and operational resilience to a central concern in central bank digital currency design and implementation. A CBDC ecosystem represents a high-value target for a range of threat actors including nation states, organized criminal groups, and sophisticated cyber criminals. An operational failure resulting in a service outage, data breach, or unauthorized transaction could undermine public confidence not only in the CBDC itself but in the broader monetary system and the central bank’s credibility as a trusted institution.

The Handbook’s dedicated chapter on cyber resilience establishes comprehensive frameworks for securing CBDC infrastructure across its entire lifecycle. Countries should consider four overarching principles for cyber resilience: the resilience of the CBDC infrastructure itself against attacks and failures, the security of participant onboarding and authentication processes, the protection of transaction data and user privacy, and the ability to maintain or rapidly restore service under adverse conditions. These principles apply across all components of the CBDC ecosystem, from the core ledger and settlement engine to the end-user wallets and merchant acceptance terminals.

The IMF emphasizes that cybersecurity for central bank digital currency systems must exceed the already rigorous standards applied to existing payment infrastructure. CBDC systems will process higher volumes of transactions, serve larger user populations, and carry greater systemic importance than many existing payment systems. The interconnected nature of CBDC ecosystems—linking central bank infrastructure with commercial intermediaries, technology vendors, and end-user devices—creates an expanded attack surface that requires defense-in-depth strategies, continuous monitoring, and robust incident response capabilities that extend across all ecosystem participants.

Central Bank Digital Currency Privacy and Data Protection

Privacy emerges as one of the most complex and consequential design dimensions of central bank digital currency, sitting at the intersection of individual rights, law enforcement requirements, anti-money laundering obligations, and technological feasibility. The IMF progress report acknowledges that if not properly designed or managed, CBDC personal data use could pose significant risks to privacy, arising from events such as data leakages, data abuses, and cyber-attacks that could negatively affect both individual users and CBDC adoption broadly.

The fundamental tension in CBDC privacy design lies between the desire to replicate the anonymity characteristics of physical cash and the regulatory requirement to prevent illicit financial activity. Complete anonymity would make central bank digital currency an attractive vehicle for money laundering, terrorism financing, and sanctions evasion. Complete transparency would create unprecedented government surveillance capabilities that could chill legitimate economic activity and undermine public trust. The IMF’s guidance suggests that most countries are pursuing tiered privacy models that provide cash-like anonymity for small-value transactions while requiring identity verification and transaction monitoring above specified thresholds.

Technical approaches to CBDC privacy continue to evolve rapidly. Cryptographic techniques including zero-knowledge proofs, secure multi-party computation, and privacy-preserving analytics offer the potential to verify transaction compliance without exposing underlying transaction details to central banks or intermediaries. The IMF notes that these technologies are maturing but have not yet been proven at the scale required for national payment systems. Countries must carefully evaluate the tradeoffs between privacy protection, regulatory compliance, and system performance as they make technology choices that will be difficult to reverse once a central bank digital currency is deployed.

CBDC Impact on Monetary Policy and Financial Stability

The macro-financial implications of central bank digital currency represent a critical area of analysis in the IMF’s progress report, addressing concerns that CBDC could fundamentally alter the transmission of monetary policy and introduce new financial stability risks. The primary concern centers on bank disintermediation: if households and businesses shift significant deposits from commercial banks to CBDC holdings, banks could face funding pressure that constrains their ability to extend credit to the economy, potentially amplifying economic downturns and creating procyclical dynamics.

The IMF’s analysis suggests that the magnitude of disintermediation risk depends heavily on CBDC design choices, particularly holding limits, remuneration policies, and the ease of conversion between bank deposits and CBDC. Most central bank digital currency proposals include mechanisms to manage this risk, such as caps on individual CBDC holdings, zero or negative interest rates on CBDC balances above certain thresholds, and automatic sweep mechanisms that convert excess CBDC holdings into commercial bank deposits. These design features aim to position CBDC as a payment instrument rather than a store of value, thereby limiting its impact on bank funding and monetary policy transmission.

Beyond disintermediation concerns, central bank digital currency could also affect monetary policy through its impact on the demand for central bank reserves, the structure of money markets, and the transmission of interest rate changes through the financial system. The IMF notes that these effects remain largely theoretical, as no country has yet deployed CBDC at sufficient scale to observe meaningful macro-financial impacts. However, the Handbook’s dedicated chapters on macro-financial implications provide analytical frameworks that central banks can use to model potential impacts and calibrate design parameters accordingly.

Technology Infrastructure and Platform Design Choices

Central bank digital currency technology choices have profound implications for system performance, privacy characteristics, resilience, and the ability to evolve the platform over time. The IMF progress report documents a diverse landscape of technology approaches, reflecting the fact that no single technology has emerged as the clear optimal solution for all CBDC requirements and country contexts. Central banks are evaluating centralized database architectures, distributed ledger technology platforms, and hybrid designs that combine elements of both approaches.

Centralized database architectures offer proven performance characteristics, with the ability to process thousands of transactions per second with low latency and established operational procedures for maintenance and recovery. These systems align well with existing central bank IT capabilities and offer straightforward paths to integration with legacy payment infrastructure. However, they concentrate control and create single points of failure that require robust redundancy and disaster recovery planning to mitigate.

Distributed ledger technology introduces features that may benefit certain CBDC use cases, particularly cross-border applications where no single entity should control the shared infrastructure. DLT platforms can enable programmable money through smart contracts, facilitate atomic settlement of complex transactions, and provide built-in audit trails that enhance transparency. The IMF notes that DLT-based CBDC systems are generally more complex to operate and may face scalability limitations compared to centralized alternatives, though rapid technology evolution is progressively addressing these constraints. Many central banks are pursuing hybrid architectures that use centralized processing for core transaction settlement while leveraging DLT elements for specific functions such as cross-border interoperability or programmable payment features.

Deployment Strategies and Country Case Studies

The IMF’s analysis of country experiences reveals that successful CBDC deployment requires far more than technical readiness. Central banks must develop comprehensive strategies that address market development, stakeholder engagement, legal framework adaptation, and public communication alongside technology implementation. The progress report provides instructive case studies from countries at various stages of CBDC deployment, offering practical lessons for central banks earlier in their exploration journeys.

China’s digital yuan pilot represents the largest and most advanced central bank digital currency experiment globally. The People’s Bank of China has deployed e-CNY across multiple major cities, integrated it with existing payment platforms, and tested use cases ranging from consumer retail payments to government transfer programs. The pilot has reached hundreds of millions of users, though daily transaction volumes remain a small fraction of total digital payments in China, illustrating the adoption challenges that persist even with substantial government support and integration with dominant payment platforms like Alipay and WeChat Pay.

Smaller economies have achieved faster adoption relative to their populations. The Bahamas Sand Dollar and Jamaica’s JAM-DEX have demonstrated that CBDC can achieve meaningful penetration in markets with limited existing digital payment infrastructure, particularly when combined with financial inclusion objectives and targeted deployment in underserved communities. Nigeria’s eNaira experience provides cautionary lessons about the importance of stakeholder alignment, as initial adoption was hampered by commercial bank resistance and consumer confusion about the relationship between eNaira and the controversial cashless policy initiatives that preceded its launch. The European Central Bank’s digital euro project, currently in its preparation phase, represents the most significant advanced economy CBDC initiative and is being closely watched for its approach to privacy, financial stability, and cross-border interoperability within the eurozone.

IMF CBDC Handbook: Policy Guidance for Central Banks

The IMF’s CBDC virtual Handbook represents the most comprehensive multilateral policy guidance resource available to central banks navigating the complex landscape of digital currency development. Structured as a series of interconnected chapters covering the full spectrum of CBDC considerations, the Handbook aims to guide and support policymakers in their explorations while respecting the diversity of country circumstances and policy priorities that shape CBDC design decisions.

The newest wave of Handbook chapters, released in November 2024, addresses critical topics that earlier guidance had not fully covered. These include positioning CBDC within the existing payments landscape to avoid unnecessarily disrupting functioning payment systems, establishing cyber resilience frameworks proportional to the systemic importance of CBDC infrastructure, designing privacy architectures that balance individual rights with regulatory requirements, building legal foundations that provide certainty for CBDC users and intermediaries, and modeling the macro-financial implications that could affect monetary policy transmission and financial stability.

The IMF emphasizes that the Handbook is designed as a reference framework rather than a prescriptive blueprint, recognizing that optimal CBDC design varies significantly across country contexts. Central banks in advanced economies face different challenges than those in emerging markets and developing countries, where CBDC may serve primarily as a financial inclusion tool rather than a modernization of already-functional payment systems. The Federal Reserve and other major central banks have referenced the IMF Handbook as a valuable input to their own CBDC research programs, underscoring its role as the primary multilateral resource for central bank digital currency policy development.