What Is a Central Bank Digital Currency (CBDC)

Digital payments have become part of everyday life: people pay for purchases using their smartphones, transfer funds through banking apps and keep money in bank accounts. The next stage in the evolution of the financial system may be CBDCs — government-issued digital currencies created by central banks.

Despite their apparent similarities to cryptocurrencies and conventional non-cash money, CBDCs represent a distinct form of currency. They are issued not by private companies or decentralised networks, but by official monetary authorities.

CBDC explained in simple terms

A CBDC is a digital form of an official national currency issued by a central bank. The abbreviation stands for Central Bank Digital Currency.

Put simply, a CBDC can be thought of as government-issued money in digital form. Its value corresponds to the national currency: for example, one digital unit is intended to be equivalent to one unit of the country's traditional currency.

The key difference lies in the issuer. Conventional non-cash funds held in a bank account are a liability of a commercial bank to its customer. A CBDC represents a liability of the central bank, although the specific legal structure depends on the individual project.

Therefore, a CBDC digital currency is part of the official monetary system rather than a separate private asset.

Why are central banks developing CBDCs

The growth of digital payments is transforming financial infrastructure. In many countries, people use cash less frequently, while a significant proportion of transactions are conducted through banks and mobile applications.

Central banks are exploring CBDCs in order to:

• develop payment infrastructure;

• accelerate payment processing;

• improve access to financial services;

• modernise cross-border payments;

• strengthen the resilience of the monetary system;

• provide a government-backed alternative to private digital payment instruments.

However, objectives differ from one country to another. For one country, financial inclusion may be the priority; for another, improving the efficiency of domestic payments; and for a third, enhancing international settlements. Consequently, there is no single CBDC model suitable for every jurisdiction.

How does a central bank digital currency work

The operating model depends on the architecture of the particular system. The central bank issues digital currency units, while users may gain access either directly or through commercial banks and other authorised intermediaries.

In simplified terms, the system works as follows:

• The central bank issues the digital currency.

• Users gain access through digital wallets or dedicated accounts.

• Individuals and businesses make payments and transfers.

• Transactions are processed within the approved infrastructure.

A CBDC does not have to operate on a public blockchain. It may use distributed ledger technology, a centralised database or a hybrid architecture. The defining characteristic is not the technology itself but who issues the money.

What types of CBDCs exist

Two main categories are generally distinguished.

• Retail CBDCs

These are intended for individuals and businesses. They can be used to pay for goods and services, transfer money between individuals and carry out other everyday transactions. Under this model, CBDC money may become an additional form of the national currency alongside cash and traditional non-cash funds.

• Wholesale CBDCs

These are designed primarily for banks and financial institutions. They may be used for interbank settlements, securities transactions and the transfer of large amounts of money.

How does a CBDC differ from conventional non-cash money

At first glance, the difference appears small: today, users already see balances in banking apps and can send money online. However, the financial nature of these funds differs.

A standard bank deposit represents a liability of a commercial bank. A CBDC represents a liability of the central bank or another legal structure established by the specific system.

The differences may relate to:

• the issuer;

• the method of storage;

• the payment infrastructure;

• the role of commercial banks;

• the availability of offline payments.

Therefore, a digital format alone does not make money a CBDC.

How does a CBDC differ from cryptocurrencies

One common misconception is that a CBDC is simply another type of Bitcoin or cryptocurrency. In reality, there are fundamental differences between them.

Criterion	CBDC	Cryptocurrencies
Issuer	Central bank	Depends on the project
Control	Government monetary system	May be decentralised
Value	Linked to the national currency	Determined by the market
Issuance	Controlled by monetary authorities	Defined by the protocol or project
Infrastructure	Regulated	Depends on the network

Bitcoin operates without a central issuer. A CBDC, by contrast, exists because it is issued by a central bank and forms part of the state's official monetary system.

How does a CBDC differ from stablecoins

Stablecoins may also maintain a value close to that of a national currency. For example, some tokens are designed to track the value of the US dollar. However, this does not make them CBDCs.

The main difference lies in the issuer and the circulation infrastructure. A CBDC is issued by a central bank and operates within the framework of the official monetary system. Stablecoins, on the other hand, are created by private companies or blockchain protocols, while their stability depends on reserves and the chosen backing mechanism. Cryptocurrency wallets, trading platforms and crypto exchanges are used to store, transfer and exchange such assets.

Advantages of CBDCs

The potential advantages depend on the specific implementation, but the most commonly cited benefits include:

• fast digital payments;

• lower costs for certain transactions;

• improved access to financial services;

• an additional payment channel;

• enhanced cross-border transfers;

• the modernisation of financial infrastructure.

For example, compatible systems across several countries could theoretically simplify international settlements. However, achieving this would require both technical and legal agreements.

What risks are associated with CBDCs

The development of government-issued digital currencies also raises a number of important questions.

• Privacy

Digital transactions leave records. Therefore, it is important to determine who has access to this data and under what circumstances it may be used.

• Cybersecurity

The infrastructure must be protected against cyberattacks, technical failures and unauthorised access.

• Impact on banks

If users begin transferring large amounts of deposits into CBDCs, this could affect the funding resources of commercial banks. To mitigate this risk, transaction or holding limits may be introduced.

• Dependence on technology

A digital monetary system depends on devices, communication networks and the reliability of its infrastructure. For this reason, offline payment functionality may become an important feature.

Can CBDCs replace cash

In theory, a digital currency could reduce the use of banknotes and coins, but this does not automatically mean that cash will disappear. Cash offers important advantages: it works without a smartphone, does not require a banking application and can be used in situations where there is no internet access.

For this reason, many projects view a central bank digital currency as an additional form of money rather than a complete replacement for cash.

Can CBDCs be programmed

From a technical perspective, a digital infrastructure can support automated conditions for executing transactions. For example, a payment could be triggered automatically once a specified event has occurred.

However, it is important to distinguish between technical capability and the actual policy adopted by a particular project. The term CBDC does not imply that a government will necessarily impose restrictions on the validity period of money, spending categories or the locations where it can be used.

What influences the development of CBDCs

The success of a government-issued digital currency depends on more than just technology. Key factors include:

• public trust;

• the protection of personal data;

• user-friendly digital wallets;

• integration with the banking system;

• cybersecurity;

• the legal framework;

• support for offline transactions.

Even a technically advanced system may see limited adoption if users do not perceive clear benefits or have concerns about privacy.

A CBDC is a digital form of an official national currency issued by a central bank. It combines the convenience of electronic money with the legal status of government-issued currency and can be used to support the development of modern payment infrastructure. At the same time, a CBDC differs from cryptocurrencies and stablecoins in terms of its issuer, governance model and role within the financial system. Its future will depend on usability, security, data protection and the trust of its users.