UK vs EU Tokenization Post-Brexit: Regulatory Divergence and Opportunities

The Brexit Compliance Gap

The United Kingdom’s departure from the European Union in January 2020, followed by the end of the transition period in December 2020, ended the UK’s participation in the EU’s financial services single market. For traditional financial services, this meant the loss of MiFID II passporting—the mechanism that allowed UK-based investment firms, banks, and fund managers to offer services across all 27 EU member states through a single UK license. For digital asset and tokenization regulation specifically, it means that UK-based platforms cannot benefit from MiCA passporting, which came into full force in December 2024.

This creates a structural disadvantage for tokenization businesses that wish to use London as their primary operational base while serving EU institutional and retail investors. A Luxembourg-licensed CASP can passport its services to Germany, France, Spain, Italy, and 23 other EU states in a single regulatory engagement. A UK-licensed equivalent must obtain licenses separately in each EU member state it wishes to serve—a burden roughly equivalent to obtaining 27 separate licenses.

The size of this disadvantage depends on how central EU investor access is to the business model. For a tokenization platform primarily serving UK institutional investors (pension funds, insurance companies, family offices), the absence of MiCA passporting is not immediately limiting—the UK’s domestic market is substantial. For a platform seeking to build a pan-European institutional business from London, the passporting gap is a serious structural problem that typically forces either an EU subsidiary establishment or primary EU licensing (with London as a secondary hub).

UK Regulatory Framework: FSMA 2023 and the Digital Securities Sandbox

Financial Services and Markets Act 2023

The Financial Services and Markets Act 2023 (FSMA 2023) is the primary legislative vehicle for the UK’s post-Brexit digital asset regulatory framework. It makes several key provisions:

Digital assets as specified investments: FSMA 2023 extends the regulated activities regime to cover digital assets (including crypto-assets not previously covered by UK financial regulation), enabling the FCA to authorize and supervise a broader range of digital asset activities.

Digital Securities Sandbox (DSS): FSMA 2023 established the Digital Securities Sandbox, jointly administered by the FCA and Bank of England, which allows firms to test DLT-based financial market infrastructure with temporary exemptions from some existing legal requirements. The DSS became operational in January 2024 with a 5-year initial operating period.

Stablecoin framework: FSMA 2023 gave HM Treasury powers to bring certain stablecoin activities into the payments regulatory framework, with the FCA developing detailed rules for payment stablecoins.

Designated activities regime: A new category allowing the FCA to regulate specific activities in digital assets without requiring the full authorization that traditional financial services regulation demands.

Digital Securities Sandbox (DSS): Current Operations

The DSS is the UK’s most concrete progress toward a comprehensive tokenization regulatory framework. Entrants include:

• HSBC Orion: Testing tokenized bond settlement within the DSS framework, with potential access to Bank of England RTGS for cash settlement.
• SIX Digital Exchange (SDX): Exploring cross-border digital securities functionality between UK and Swiss markets.
• Several fintech participants: Testing DLT-based fund unit transfer and tokenized commercial paper.

The DSS provides exemptions from the Financial Markets and Insolvency Regulations (settlement finality), the Uncertificated Securities Regulations (electronic form requirements for securities), and elements of the UK’s market infrastructure regulations that would otherwise prevent DLT-based settlement. These exemptions are analogous to the EU’s DLT Pilot Regime, though the UK’s DSS has no explicit market capitalization caps.

FCA Digital Asset Regulatory Timeline

The FCA’s permanent regime for crypto-assets—expected to finalize in 2025–2026—will cover:

• Crypto-asset issuance (admission to trading requirements)
• Crypto-asset trading platforms (exchange authorization)
• Custody of crypto-assets
• Stablecoin issuance and reserve requirements

Until this permanent regime is in force, the UK’s crypto regulatory landscape remains transitional. Firms that registered with the FCA under the temporary UK AMLA registration regime (from January 2020) operate in a supervisory limbo—registered for AML purposes but not comprehensively authorized.

EU Framework (MiCA): The Benchmark

For comparison with the UK’s transitional framework, MiCA’s characteristics are the relevant benchmark:

Regulatory certainty: MiCA provides legally binding requirements with ESMA-published technical standards, effective December 30, 2024. UK FSMA 2023 secondary legislation and FCA rules are still being finalized.

Market access: MiCA CASP license passports across 27 EU states. UK FCA license has no passporting rights to EU states.

Licensing timeline: EU CASP licensing in cooperative member states: 3–6 months. UK FCA full authorization for crypto-asset businesses: currently undefined (permanent regime not yet in force); DSS entry: 3–6 months assessment.

Capital requirements: EU CASP: €50,000–€150,000 minimum capital by activity type. UK: FCA has not yet specified final capital requirements for the permanent crypto regime (existing FCA regimes for investment firms suggest £50,000–£500,000 as likely range).

Strategic Implications

For Businesses Currently Using London as EU Headquarters

Businesses that structured their EU operations around a UK entity pre-Brexit face a clear structural problem post-MiCA: their UK regulatory position does not provide EU market access. The remediation options are:

1. Establish an EU subsidiary: Obtain a MiCA CASP license in an EU member state (Luxembourg, Lithuania, Ireland are the most common choices for London-headquartered businesses). The EU subsidiary can passport EU services; the UK parent continues UK-exclusive operations.

2. Redomicile the primary entity: Move the headquarters from the UK to an EU member state, retaining the UK entity for UK-specific activities. This is commercially disruptive and involves significant management time but provides the cleanest long-term structure.

3. License in Liechtenstein: Liechtenstein’s EEA membership provides EU-equivalent market access through MiCA at lower capital and complexity than major EU member states. Several London-headquartered businesses have used Liechtenstein entities for EU distribution.

For New Entrants Choosing Between UK and EU

For a new tokenization platform choosing between UK and EU primary licensing in 2026:

Choose EU primary if: EU institutional or retail investor access is central to the business model. The licensing cost premium and compliance burden of EU licensing is justified by the market access it provides.

Choose UK primary if: The primary target market is UK institutional investors (pension funds, endowments, UK family offices) and global non-EU institutional investors (Singapore, Hong Kong, UAE, US private placements). London’s institutional depth—as the world’s #2 financial center—provides access to substantial capital without requiring EU passporting rights.

Choose both if: The business model requires both UK institutional presence and EU retail/institutional distribution. The dual-licensing cost (EU CASP + UK FCA authorization) is approximately €500,000–€2,000,000 in combined capital requirements plus ongoing compliance costs, which is manageable for businesses with sufficient AUM or transaction revenue.

Exhibit: UK vs EU Tokenization Framework Comparison

Future Outlook: UK Convergence or Divergence?

The UK government has explicitly stated its intention to make the UK a global crypto-asset hub. HM Treasury has published multiple consultation papers and policy papers committing to this objective, and the FCA’s roadmap for permanent crypto regulation suggests a framework broadly comparable to MiCA in scope (though not identical in content).

If the UK’s permanent regime is well-designed and efficiently licensed, it could compete effectively with EU licensing for businesses primarily targeting UK, US private placement, Asian, and Middle Eastern institutional capital. The passporting gap with the EU will remain an inherent structural limitation—nothing in the UK’s domestic framework can replicate the value of 27-state EU market access.

The optimal long-term position for most global tokenization platforms remains a dual-license structure: EU CASP for EU distribution, UK FCA authorization for London institutional access. The combined cost is manageable and the combined market access is comprehensive.

For the EU framework in detail, see MiCA regulations. For institutional licensing comparison, see Licensing.

Authority references: ESMA · MiCA (EUR-Lex) · FSB Recommendations