Britain’s largest banks have completed interbank transactions using tokenized deposits, marking a major step in efforts to use blockchain technology for payments involving commercial bank money.
The transactions were conducted under the Great British Tokenized Deposit (GBTD) project, an industry initiative led by UK Finance to examine how digital representations of sterling deposits could support payments and other financial activity.
According to UK Finance, Lloyds, NatWest and Barclays completed two mortgage-related transactions. A separate group of three banks, including HSBC, also conducted a simulated person-to-person payment connected to an online marketplace.
The tests demonstrated that tokenized commercial bank deposits can move between different banks while supporting programmable payment conditions, addressing an important interoperability challenge for blockchain-based money.
Mortgage and marketplace payments tested
One of the trials focused on an online marketplace transaction. In the simulation, funds were reserved in a buyer’s account and programmed to transfer to a seller after the buyer received the goods.
Although no physical goods were exchanged during the test, the process demonstrated how programmable deposits could connect the release of payment to a predefined event. Such functionality could eventually allow financial institutions to automate payments based on contractual or transaction-specific conditions.
The two mortgage-related tests used a comparable mechanism. Funds were locked and programmed to be released once the relevant property transaction had been completed.
UK Finance indicated that this approach could improve efficiency in remortgaging while potentially reducing opportunities for fraud by linking the movement of funds to verified stages of a transaction.
Tokenized deposits represent digital versions of money held at commercial banks. Unlike stablecoins, which are typically issued by private entities, tokenized deposits remain claims against commercial banks and retain the underlying legal and regulatory characteristics associated with traditional bank deposits.
The technology can add programmable features and potentially enable faster settlement while preserving the existing relationship between customers and regulated banking institutions.
Interoperability remains a key challenge
The interbank element of the project is particularly significant because banks have previously developed separate tokenization systems. Without common infrastructure, digital money issued by one bank may not be able to interact efficiently with systems operated by another institution.
A report from HM Treasury in July described GBTD as a private-sector platform intended to allow tokenized deposits issued by different banks to interact.
The latest trials therefore extend beyond demonstrating that an individual bank can tokenize deposits. They examine whether tokenized commercial bank money can function across institutional boundaries, an issue that could become increasingly important as banks develop blockchain-based payment and settlement systems.
The GBTD project is expected to move beyond its pilot stage, with UK Finance planning a dedicated company as well as a rulebook and governance framework intended to support broader production use.
Digital bonds planned for 2027
Participating banks are also preparing to test additional applications. Three digital bonds are planned for the first quarter of 2027, with tokenized deposits expected to be used for their trading and settlement.
The planned bond transactions could provide another test of whether tokenized deposits can support more complex financial-market activity beyond payments and property transactions.
The development comes as Britain continues work on digital financial infrastructure covering stablecoins, tokenized deposits and digital settlement mechanisms. HM Treasury has highlighted the GBTD initiative as part of the country’s wider efforts to develop new forms of regulated digital finance.
For banks, tokenized deposits could provide a way to introduce blockchain-based programmability and settlement capabilities without replacing commercial bank money with a separate privately issued digital asset.
For businesses and consumers, the technology could eventually support automated payments tied to specific conditions, while financial institutions could gain new mechanisms for coordinating settlement across multiple banks.
The planned transition toward a formal operating structure, common rules and additional digital-bond trials could provide the next test of whether tokenized deposits can progress from controlled experiments to infrastructure capable of supporting real-world financial transactions at greater scale.
