Regulatory alignment is becoming a critical factor in the development of digital asset ecosystems as governments balance innovation with financial stability. The UK’s evolving approach to stablecoins highlights growing tensions between enabling market growth and imposing strict risk controls.
A fundamental tension has emerged at the centre of the United Kingdom’s strategy for digital finance as two primary regulators pursue seemingly contradictory goals. While the Financial Conduct Authority (FCA) is actively moving to foster a domestic stablecoin ecosystem, a series of restrictive proposals from the Bank of England has sparked warnings that the market may be structurally undermined before it can truly begin.
On 25 February 2026, the FCA officially selected four companies to enter its regulatory sandbox to test stablecoin products. The cohort includes the digital banking giant Revolut, as well as Monee Financial Technologies, ReStabilise, and VVTX. These firms serve a broad range of use cases, from retail payments and wholesale settlement to white-label issuance for traditional banks. The objective of the sandbox is to generate real-world data to inform the final UK regulatory framework, which is scheduled for implementation in October 2027.
However, this push for innovation is colliding with a supervisory regime proposed by the Bank of England for systemic stablecoins. These digital currencies have grown large enough to affect the nation’s broader financial stability. Under these proposals, the central bank would impose a holding cap of 20,000 Pounds for individuals and a strict 10 million-pound limit for businesses. Furthermore, issuers would be required to hold 40 per cent of their backing assets in non-interest-bearing accounts at the Bank of England.
Legal analysts and industry leaders have been quick to point out that these requirements could render a sterling-denominated stablecoin commercially unviable. Most stablecoin issuers generate revenue by earning interest on the government bonds they hold in reserve. By mandating that nearly half of those reserves sit in zero-yield accounts, the Bank of England would effectively strip away the primary business model. Critics argue that this would make it impossible for UK-based issuers to compete with dollar-denominated alternatives, such as Tether or USDC, which do not face such constraints.
The proposed 10 million-pound business cap has also drawn significant fire. Tom Duff Gordon, a vice president at Coinbase, recently told a House of Lords committee that such a limit hinders institutional adoption. He explained that large-scale financial activities, such as the settlement of tokenised gilts or cross-border corporate payments, require capital movements far exceeding the proposed cap. Without the ability to move high volumes of value, a stablecoin remains a niche consumer product rather than a meaningful tool for capital markets.
There is also growing concern about the dollarisation of the UK digital economy. If the regulatory environment for the Pound becomes too burdensome, businesses will continue to use dollar-backed stablecoins for their infrastructure. This would result in the Bank of England losing oversight of the high risks it is attempting to manage, as those transactions would occur in a foreign currency outside of its jurisdiction.
This internal debate occurs as the United States advances its own federal framework through the GENIUS Act of 2025. Unlike the UK proposals, the US model does not include holding caps for businesses or unremunerated reserve requirements. This difference in approach could lead to a significant competitive disadvantage for London. The path forward may depend on the Transatlantic Taskforce for Markets of the Future, a joint initiative between the UK and US Treasuries.
This group is currently working to align digital asset standards to facilitate cross-border market access. Many industry observers believe that the task force will eventually pressure the Bank of England to reconsider its restrictive caps to ensure that UK rules are equivalent to those in the US. For now, the firms in the FCA sandbox are operating in a window of high uncertainty, waiting to see whether the final rules will support a thriving market or merely contain it.
What this means for the industry
• Regulatory alignment will determine stablecoin adoption
Conflicting approaches between regulators could slow innovation and limit the growth of domestic digital asset ecosystems.
• Commercial viability is a key concern for issuers
Restrictions on reserve structures and holding limits may undermine the economic model of stablecoins.
• Institutional adoption depends on scalability
Caps on transaction volumes could prevent stablecoins from being used in large-scale financial activities.
• Global competition is intensifying in digital finance
Differences between UK and US regulatory frameworks may impact London’s position as a leading financial hub.
• Currency dynamics could shift toward dollar dominance
If local regulations are too restrictive, businesses may favour dollar-backed stablecoins, reducing domestic oversight.
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