The success of Britain’s planned tokenized sovereign debt market relies entirely on resolving onchain cash settlement, an issue that has stalled institutional adoption of digital bonds for nearly seven years, industry experts told CoinDesk.
While the U.K. government is targeting early 2027 to test its first blockchain-based bond issuance via HSBC and the London Stock Exchange Group, experts said that infrastructure pilots alone will not create a functioning capital market.
The pilot comes just as 10 Downing Street has a new tenant. The digital bond initiative was announced by then-Chancellor of the Exchequer Rachel Reeves immediately before Prime Minister Keir Starmer resigned, clearing the way for Andy Burnham to take office on July 20 and replace Reeves with John Healey.
This leadership turnover comes as the U.K. carries nearly 3 trillion pounds ($4 trillion) in outstanding debt, raising questions about whether the incoming administration will alter the course of wholesale market modernization.
While the Treasury did not respond to a CoinDesk email asking whether anything would change, Varun Paul, the global business lead for central banks and financial market infrastructure at Fireblocks, said the project probably has enough institutional backing that it would be difficult to reverse.
“I don’t have any real political insights, but I expect that there is sufficient momentum behind this,” said Paul via WhatsApp. “And I believe that since this is now in the remit of the HM Treasury, Bank of England and the Financial Conduct Authority, it doesn’t require much political intervention to proceed. If anything, I think this might support increased demand for U.K. debt at a convenient time for the U.K. government.”
Changing capital flows
Paul said moving sovereign debt onchain changes how capital flows through the financial system, making it more than a back-office adjustment. Natively digital bonds allow market participants to settle trades instantly and move collateral between venues without the delays of traditional market infrastructure.
This programmability alters the dynamics of intraday repo markets, a change that market participants believe could free up tens of billions of dollars in idle liquidity. Currently, the U.K. gilt market sees aggregate daily trading volumes exceeding 45 billion pounds.
However, one key obstacle remains: the lack of a standardized onchain payment method.
“Santander issued a tokenized corporate GBP-denominated bond way back in 2019, so we have been demonstrating that bonds can be tokenized for nearly seven years,” said Jannah Patchay, founder of Markets Evolution. “The challenge then, as now, was how to settle that bond on-chain using a counterparty risk-free settlement asset, and we do not yet have a compelling solution.”