Central Bank Digital Currency

CBDCs can be designed in two primary architectures: retail CBDC (accessible directly by individuals and businesses for everyday payments) and wholesale CBDC (restricted to financial institutions for interbank settlement). Most central bank research and pilots focus on retail CBDC as the more transformative design, though wholesale CBDC has more near-term institutional applications.

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In a retail CBDC model, citizens hold digital currency balances in a CBDC wallet, either directly with the central bank or through intermediaries (commercial banks or regulated wallet providers) that distribute the CBDC on the central bank's behalf. The intermediated model (sometimes called a two-tier CBDC) is preferred by most central banks to preserve the commercial banking system's role in credit creation and customer relationships.

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CBDC payments can be designed to work online or offline (using hardware-based secure elements for offline transactions), to be programmable (applying conditional spending rules via smart contracts), or to provide privacy features that protect transaction data from third parties while maintaining regulatory visibility for AML and tax purposes.

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As of 2025/2026, the most advanced CBDC deployments include the Bahamas Sand Dollar, Nigeria's eNaira, Jamaica's Jam-Dex, and China's digital yuan (e-CNY, in broad domestic pilot). The European Central Bank's digital euro project is in the preparation phase. The US Federal Reserve has conducted research, but a January 2025 executive order prohibits federal agencies from establishing or issuing a US CBDC, and the Federal Reserve Act does not authorise Fed issuance of a retail CBDC without Congressional authorization.

The policy motivations for CBDC vary by jurisdiction. In emerging markets, financial inclusion is primary: a CBDC accessible via a basic smartphone or even offline can provide payment infrastructure to citizens without access to commercial banking. In advanced economies, motivations include maintaining sovereign currency relevance as private digital payment instruments proliferate, providing a public option for digital payments that is not dependent on private intermediaries, and enabling programmable policy tools.

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For financial institutions and payment infrastructure providers, CBDC raises questions about disintermediation. If citizens hold digital currency directly with the central bank, commercial banks lose deposit funding. Most CBDC designs are intentionally structured to avoid this, through holding limits, non-interest-bearing designs, or the two-tier model, but the debate shapes central bank design choices.

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For merchants and payment processors, the practical impact depends on design: a CBDC that functions like a digital wallet payment would require POS and e-commerce integration work analogous to adding a new digital wallet; a CBDC designed for wholesale interbank settlement has no direct consumer checkout implication.