InvestNot yet confirmed elsewhere1 publisher2 min readPublished
Bank of England swaps sterling stablecoin holding limits for a £40 billion cap per coin
Bank of England swaps per-person holding limits on sterling stablecoins for a temporary £40 billion cap on each coin's issuance. Issuers now plan around how large their own coin may grow, under a central bank that says it will also hold part of every coin's reserves.
The Investor · Invest desk
Two bars compare the most of a sterling stablecoin's reserves that may sit in short-term UK government debt. The earlier limit was 60% of reserves. The new limit is 70%, which is higher.
| Measure | Value | As of | Claim |
|---|---|---|---|
| Earlier ceiling | 60 % of reserves | 9 | |
| New ceiling | 70 % of reserves | 9 |
What happened
- A June 22, 2026 policy statement softened several earlier Bank of England proposals for sterling stablecoins after what the bank called extensive industry feedback.
- It came with a draft Code of Practice for issuers, and together they set the framework for sterling stablecoins that reach systemic scale.
- The bank plans to finish the full framework by the end of 2026, with stablecoin operations under the regime starting from 2027.
Why it matters
- cost Against the old 60% ceiling, a full-size coin can shift up to £4 billion more of its backing into interest-earning government debt, so issuers keep more income and a smaller share of the cushion sits at the Bank.
- capability Without per-person caps, a sterling coin can carry large payment and trading balances, a use Crypto Briefing said the earlier holding limits could have undercut.
- contradiction If regime operations start at the beginning of 2027, issuers get about six months from the June statement, roughly a third of the year and a half Crypto Briefing gives them.
The holding limits had a purpose. In its earlier proposals the bank worried about large sums leaving bank deposits for tokens, and capping each person's balance was one way to stop a sudden migration of savings, according to Crypto Briefing [2]. The June statement keeps that worry and changes the tool. The bank now caps issuance and shapes reserves, and it has stopped trying to police individual wallets [3]. We'd expect one ceiling per coin to be simpler to supervise than millions of balances. It also lets money flow into a coin freely until that coin nears £40 billion [8][1].
At the full cap, the new 70% ceiling on short-term UK government debt lets £28 billion of a coin's backing earn interest, with the other £12 billion held as deposits at the central bank [18]. A Bank of England deputy said the central bank will serve as "the banker to the stablecoin" [5]. Crypto Briefing describes the government debt as where issuers make money and the central bank deposits as how they keep their promises during a rush for the exits [16]. Deputy Governor Sarah Breeden has framed the goal as prompt redemption and strong protections for users, with room for central bank support, the outlet reported [11].
How this plays out depends on whether the cap ever binds. If no sterling coin gets near £40 billion while the guardrail lasts, the cap costs issuers nothing and the reserve split is the only term they feel [8]. If a coin does get there and the bank holds the line, growth stops at £40 billion. Crypto Briefing reports the figure as explicitly temporary but does not say when the temporary period ends [15]. The third outcome is that the final rules, due by the end of 2026, move the numbers again before anyone launches [12].
We think the June terms make a systemic sterling coin workable on paper. Crypto Briefing calls the combination of a defined cap, a known reserve split and a firm timeline the biggest gift to firms weighing a launch [17]. We would be wrong if no firm publicly commits to a sterling coin under this regime before operations begin in 2027 [13], or if the permanent cap comes in below £40 billion. The evidence against us so far is that none of the announcements mention a specific stablecoin project, Crypto Briefing reported [14].
What to watch
- Whether any firm publicly commits to launching a sterling coin under the systemic regime before operations open in 2027.
- The figure, if any, that replaces the temporary £40 billion guardrail, and whether the final rules due by end-2026 set it.
- Whether the 70% ceiling on short-term UK government debt survives into the final Code of Practice.
Clarity's read
What the record supports and how the coverage leans. The claims behind it follow.
Reality
- Evidence42
- Adoption
- Insufficient
- Hype gap+18
- Incentives55
- Confidence40
Claim ledger
Ranked by verification strength, evidence, and original report placement.
- [1]
The £40 billion issuance guardrail replaces earlier proposed limits on how much any individual could hold.
ReportedSupportedSource: Crypto Briefing2 sources— create a free account to open themView cited source - [2]
The bank's earlier proposals reflected caution about large sums moving out of bank deposits into tokens; holding limits on individuals were one way to stop a sudden, large migration of savings into stablecoins.
ReportedSupportedSource: Crypto Briefing2 sources— create a free account to open themView cited source - [3]
Instead of policing individual wallets, the bank is capping issuance and shaping reserves.
ReportedSupportedSource: Crypto Briefing2 sources— create a free account to open themView cited source - [4]
Dropping per-person holding limits removes a feature that could have made sterling coins less useful for payments and trading.
ReportedSupportedSource: Crypto Briefing's assessment2 sources— create a free account to open themView cited source - [5]
A Bank of England deputy said the central bank will serve as "the banker to the stablecoin."
ReportedSupportedSource: Crypto Briefing, reporting a Bank of England deputy's remarkView cited source - [6]
A June 22, 2026 Bank of England policy statement softened several of the bank's earlier proposals for sterling-denominated stablecoins, following what the bank described as extensive feedback from industry.
- [7]
The policy statement arrived alongside a draft Code of Practice for stablecoin issuers; together they form the latest framework for sterling stablecoins that reach systemic scale.
- [8]
Each sterling stablecoin will face a temporary £40 billion issuance guardrail.
- [9]
The bank raised the share of stablecoin reserves that can sit in short-term UK government debt from 60% to 70%.
- [10]
The remaining 30% of reserves can be held as deposits at the central bank.
- [11]
Deputy Governor Sarah Breeden has emphasized a framework that guarantees prompt redemption and strong protections for stablecoin users, while making room for central bank support.
- [12]
The Bank of England plans to finish implementing the full stablecoin framework by the end of 2026.
- [13]
Stablecoin operations under the regime are slated to begin from 2027.
- [14]
The announcements do not name any specific stablecoin projects.
- [15]
The £40 billion figure is explicitly temporary; the bank described it as a guardrail.
- [16]
Short-term government debt earns interest, which is how issuers make money; central bank deposits are about as safe and liquid as money gets, which is how issuers keep their promises during a rush for the exits.
- [17]
For firms weighing a sterling stablecoin, the biggest gift is clarity: a defined issuance cap, a known reserve split and a firm timeline.
- [18]
At the £40 billion cap, a 70% ceiling on short-term UK government debt allows £28 billion of a coin's reserves in that debt, with the remaining £12 billion held as deposits at the central bank.
- [19]
Against the old 60% ceiling (£24 billion at the cap), the new 70% ceiling lets a full-size coin hold up to £4 billion more in short-term government debt.
- [20]
Crypto Briefing says the timeline gives issuers roughly a year and a half from the June statement to get their structures, reserves and compliance in order.
ReportedContestedSource: Crypto Briefing2 sources— create a free account to open themView cited source - [21]
From the June 22, 2026 statement to the start of 2027 is about six months, roughly a third of the year and a half Crypto Briefing says issuers have; the 18-month figure fits only if operations begin late in 2027.
Sources
1 independent publisher whose own reporting we read for this story.
- cryptobriefing.comBank of England says it will be ‘the banker to the stablecoin’
1 article · October 11, 2026
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