The regulatory rulebooks of the UK and the EU, once built on an identical foundation of European financial services law, are steadily pulling apart, and Sherlocq, a purpose-built regulatory intelligence platform, argues this slow drift has become one of the defining compliance challenges of the decade for firms active in both markets.
Sherlocq recently discussed the quiet regulatory divergence between the UK and EU post Brexit.
Rather than the sudden rupture many predicted at the time of Brexit, the split is happening incrementally. Britain kept a near complete copy of EU financial legislation, including MiFID II, EMIR, MAR and Solvency II, on departure.
Since then, both sides have moved independently. The UK is overhauling its retained rules through the Edinburgh Reforms and the FSMA 2023 programme, while Brussels presses ahead with DORA, MiCA, CSRD, the AI Act and amendments to EMIR without British input. The result is two regimes changing at different speeds and in different directions.
The gaps are widening across several fronts. In financial services, the UK’s Smarter Regulatory Framework is replacing statutory MiFID provisions with a principles-based model run through FCA rules, just as the EU carries out its own MiFID review on a separate timetable. Sustainability reporting shows the deepest structural split, with CSRD and the UK’s disclosure regime differing on scope, materiality thresholds and required metrics, creating real operational strain for multinationals producing consolidated reports.
Digital and data governance is moving apart fastest of all, as the EU’s AI Act, DORA, MiCA and Data Act form a regulatory layer with no direct British counterpart. Sanctions add another dimension, with the UK regime overseen by OFSI and the Foreign, Commonwealth and Development Office now differing from EU frameworks on designation lists, licensing and enforcement.
The harder problem, the piece argues, is not recognising divergence but tracking it. Traditional monitoring services and counsel updates were built for a single-regime world, and no consolidated source follows UK-EU differences at the granular level compliance teams need. Comparing, for instance, DORA against the FCA’s operational resilience rules can absorb days of senior legal time and must be repeated with every amendment.
Sherlocq was designed for exactly this type of work. The platform handles multi-jurisdiction queries that demand synthesis, comparison and traceability across source documents, returning sourced, structured answers in seconds. It continuously indexes regulatory output from more than 30 jurisdictions, including the UK and the main EU member state regulators, so divergence is captured as it happens rather than at quarterly reviews.
Firms handling the issue best treat it as an operational variable rather than a legal curiosity, the article suggests, through three measures: maintaining a regularly refreshed divergence inventory, applying tiered monitoring that separates technical from substantive change, and documenting defensible interpretive positions where requirements genuinely differ.
With both jurisdictions structurally committed to independent rule making, the drift is set to continue, favouring firms that combine domain expertise with tools able to process regulatory output at a scale manual research cannot match.
Sherlocq strategic advisor Kunal Vajani, “This is not the dramatic rupture Brexit once promised. It is something subtler and, in many respects, harder to manage. Two regimes that once shared a common legal foundation are now evolving independently, at differing speeds and in differing directions.
“For legal and compliance teams, the research burden this creates is structural in nature. There is no consolidated source that tracks UK-EU divergence at the level of specificity that defensible legal decisions actually require. That gap is real, and it is widening.”
Sherlocq CEO Bhavin Shah added, “The UK and EU are no longer diverging at the margins. They are constructing genuinely different regulatory architectures, provision by provision, at a pace that manual research cannot track. For firms operating across both jurisdictions, the assumption of equivalence is no longer safe.
“Sherlocq was built for exactly this problem: multi-jurisdiction queries that require not just retrieval but synthesis, comparison, and traceability across source documents, in seconds rather than days.”
Read the full Sherlocq post here.
By Daniel Willis, Editor of RegTech Analyst
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