The framework does not cover all crypto activity. The FCA is pursuing a case-by-case approach to decentralised finance, and "true DeFi" with no identifiable operator may fall outside the regulatory perimeter entirely, FCA Director Matthew Long has indicated.

The rulebook, grounded in the Financial Services and Markets Act 2000 (Cryptoassets) Regulations 2026 passed by Parliament in February, covers trading platforms (CATPs), cryptoasset custodians, stablecoin issuers, staking services, intermediaries, lending and borrowing platforms, and digital asset intermediaries.

Firms must apply for FCA authorisation between September 30, 2026 and February 28, 2027. The regime becomes fully enforceable on October 25, 2027, at which point all regulated crypto activities require a valid FCA authorisation.

What Changed on Capital

Earlier consultation proposals, published in May 2025, had set stablecoin issuers' ongoing capital requirements at 2% of average stablecoins in circulation, a figure PwC estimated would translate to an effective capital cost of 10 to 20 basis points. The proposals also included a Permanent Minimum Requirement (PMR) of £350,000 for stablecoin issuers and £150,000 for custodians, alongside a capital composition requirement mandating a minimum of 56% in Common Equity Tier 1 (CET1), with CET1 and Additional Tier 1 combined reaching at least 75%.

Industry groups argued this approach was commercially challenging for crypto-native firms at scale.

The final rules pull back from that approach. The FCA dropped the requirement for issuers to provide estimated redemption forecasts, a modelling burden that proved contentious. It introduced statutory trust requirements for reserves rather than more complex alternatives, permitted stablecoin issuers to hold up to 5% in excess backing assets, and allowed limited intragroup custody arrangements under defined conditions.

FCA Executive Director David Geale framed the outcome as a calibration exercise. "We've created a framework that doesn't force firms to choose between regulatory certainty and room to innovate," he said.

The Bank of England Takes a Parallel Track

In a coordinated move on June 22, the Bank of England published its own policy statement covering sterling stablecoins large enough to be considered systemic. Both actions form part of the same legislative rollout under the 2026 Regulations.

The BoE scrapped planned per-coin holding limits that would have capped individual users at £20,000 and business users at £10 million per stablecoin. In their place, the central bank set a temporary £40 billion issuance cap per stablecoin product, a guardrail it described as cheaper and easier to implement. It also raised the ceiling on interest-bearing reserve assets from 60% to 70%, with short-term UK government debt as the permitted instrument.

Deputy Governor for Financial Stability Sarah Breeden marked the publication with a direct statement. "This is a major milestone in delivering greater choice and innovation in UK payments," she said. "Innovation thrives on trust."

Not everyone was satisfied. Janine Hirt, CEO of Innovate Finance, acknowledged positive changes but warned: "Despite some positive changes in response to industry feedback, the Bank of England's approach still risks creating the most conservative and cautious stablecoin regime in the world." Her concern reflects broader industry anxiety about redirecting innovation toward jurisdictions with lighter regulatory frameworks, including Singapore, whose Monetary Authority of Singapore stablecoin framework has been operational since 2023, and the EU, where MiCA has been live since mid-2024.

Market Context

The UK rules arrive as the global stablecoin market is expanding rapidly. Total stablecoin market capitalisation surpassed $321 billion in April 2026, up from $308.55 billion at the start of the year. Transfer volume reached $28 trillion in the first quarter of 2026 alone, and stablecoins accounted for 75% of total crypto trading volume over the same period. Tether (USDT) holds roughly $188 billion in market cap, representing about 58% of total supply, while USDC sits at approximately $78 billion. Ethereum hosts around $170 billion of that supply; TRON holds roughly $87 billion.

The UK framework enters a market already shaped by competing regulatory regimes. The United States enacted the GENIUS Act in 2025 to establish a federal stablecoin framework. The EU's MiCA has been in force since mid-2024, and Singapore's MAS stablecoin framework has been operational since 2023. How the UK positions itself relative to these regimes will determine whether London attracts or deflects issuers weighing their regulatory options.

Why This Matters Beyond the UK

The UK framework carries practical weight for users and businesses in South Asia and sub-Saharan Africa, two regions where stablecoin adoption is accelerating and where the UK sits at the centre of major remittance corridors.

On-chain data underscores the scale. Sub-Saharan Africa received more than $205 billion in on-chain value in the 12 months to June 2025, a 52% year-on-year increase. Nigeria recorded roughly $25 billion per month in stablecoin volume during periods of naira weakness in March 2025.

In Ethiopia, stablecoin transfers surged 180% year-on-year in 2024 following a 30% depreciation in the birr.

South Asia logged an 80% rise in crypto transaction volume between January and July 2025 compared to the same period in 2024.

South Africa is a significant presence in the region as well. As of December 2025, the Financial Sector Conduct Authority had approved more than 300 cryptoasset service provider licences from 512 applications, a 59% approval rate, with 7.8 million users active on licensed exchanges. South Africa's domestic ZARU stablecoin project is among those monitoring how the UK structures its framework.

The FCA's diluted capital requirements lower barriers for smaller stablecoin issuers, which matters for remittance operators connecting UK diaspora communities to recipients in Nigeria, Ghana, India, and Pakistan. The BoE's elimination of per-coin business holding caps is equally significant: the previous £10 million limit would have constrained large-volume remittance platforms routing substantial cross-border flows. Juicyway, for example, processed $1.3 billion in cross-border volume, illustrating the scale at which such platforms operate.

Regulatory precedent is the other channel. Kenya, Ghana, and Nigeria have all moved to formalise digital asset rules in the past 18 months. Kenya and Ghana enacted Virtual Asset Service Provider Acts in 2025, and Nigeria's Investment Securities Act 2025 classified digital assets as securities.

Domestic stablecoin projects such as Nigeria's cNGN and South Africa's ZARU are watching how the FCA structures reserve requirements, redemption rights, and custody standards. Analysts expect those design choices to inform what best practice looks like when West African and broader African regulators finalise their own guidance.

The FCA noted that firms with existing anti-money laundering registrations cannot carry those over to the new regime, though limited transitional savings provisions will permit continued operations during the switch. Pre-application support meetings open in July 2026, and the formal application window opens September 30, 2026.