Bank of England rethinks stablecoin cap limits

TLDR

The Bank of England is signalling it may soften planned caps on pound stablecoins after pushback from the crypto industry.

1. Deputy Governor Sarah Breeden said the BoE is genuinely open to changing its proposed limits on stablecoin holdings and exposures after industry backlash.
2. The core framework still centers on fully backed, redeemable-at-par sterling stablecoins with strict reserve rules and closer oversight of systemic issuers.
3. Final decisions after consultation will determine how large GBP stablecoin use can realistically become in UK payments, fintech and DeFi.

Deep Dive

1. What The BoE Is Willing To Change

The BoE has been developing a regime for sterling stablecoins that includes caps or limits intended to prevent a sudden shift of customer money from bank deposits into stablecoins.

Deputy Governor Sarah Breeden said the central bank is genuinely open to other ways of achieving the objective of guarding against this deposit-flight risk, and that regulators may soften their relatively strict approach to limits on stablecoin holdings after industry backlash over the proposals to cap exposures.

A separate summary of the proposals notes the BoE has been disappointed by the lack of constructive engagement so far, but confirms it is open to revising its proposed stablecoin rules for pound-pegged coins, including how caps are calibrated.

2. How The Framework Hits Issuers, Banks And Users

Even with a rethink on caps, the BoEs basic design is quite conservative for issuers of GBP stablecoins. Key elements include:

1. Sterling stablecoins must be 100 percent backed by high quality assets and redeemable at face value.
2. Systemic issuers would hold at least 40 percent of reserves as deposits at the BoE and up to 60 percent in short term UK government debt, under direct BoE supervision.
3. Stablecoins used mainly for trading would remain under Financial Conduct Authority regulation alongside this prudential regime.

Strict caps on holdings or exposures could have constrained how much GBP stablecoin users can hold, and how deeply payment firms and DeFi protocols can integrate them. A softer approach to caps, combined with tight reserve and supervision rules, would leave more room for growth while still addressing bank concerns about rapid deposit outflows into stablecoins.

3. What To Watch Next In The UK

The BoEs comments sit inside a broader UK push to roll out phased digital asset regulation, including new rules on crypto and fraud in the second half of this decade.

Next key signals for crypto users and issuers are likely to be:

1. A revised BoE policy statement or consultation response clarifying whether caps are loosened, redefined, or replaced by alternative safeguards.
2. How the Treasury designates systemic stablecoin issuers, which determines who must hold reserves at the BoE and meet the strictest requirements.
3. FCA rulemaking on trading-focused stablecoins, which will shape how GBP stablecoins can be offered on exchanges and in DeFi accessible from the UK.

If the final rule set lands on tight reserves but more flexible caps, GBP stablecoins could see meaningful adoption in UK payments and on-chain finance. If caps remain very restrictive, their role may stay niche relative to global dollar stablecoins.

Conclusion

The BoE is not retreating from a cautious, bank-like regime for pound stablecoins, but it is clearly open to revisiting how hard it leans on caps and quantitative limits. For crypto users and issuers, the opportunity is a clearer, more scalable GBP stablecoin framework, provided they can operate within demanding reserve and supervision rules. The eventual balance between deposit-protection caps and practical usability will determine whether the UK becomes a serious hub for regulated stablecoins or cedes that role to other jurisdictions.