AI in action · Investor protection
No New AI Rules, Says the UK's Financial Watchdog. Parliament Isn't Convinced
Britain's regulators are overseeing AI in finance through existing rules and a long-term review, the Mills Review, launched in January 2026. The Treasury Committee called that a 'wait-and-see' approach and asked for AI stress tests and guidance by the end of the year.
The United Kingdom has become the clearest test of a question every financial regulator faces: whether AI needs its own rulebook. The answer from the Financial Conduct Authority, the Prudential Regulation Authority and the Bank of England has been consistent — no. AI will be overseen through the existing, technology-neutral frameworks, including the Senior Managers regime that makes named executives accountable for what happens on their watch.
On January 27, 2026, the FCA launched the Mills Review, a long-term study of how AI could reshape retail financial services. According to Covington's Global Policy Watch, the FCA said it does not currently plan AI-specific rules, and that while there are open questions about how to hold managers accountable when AI performs functions that people used to, it would be "premature" to recommend major changes now.
Parliament disagreed. A week earlier, on January 20, the House of Commons Treasury Committee had published a report criticising the regulators' "wait-and-see" approach. Its recommendations, which are not binding, include AI-specific stress testing, practical guidance on consumer protection and accountability by the end of 2026, and designating the largest AI and cloud providers as critical third parties whose failure could threaten the system.
The Bank of England and the PRA replied to the government on April 1, 2026, promising a fourth AI adoption survey this year, a report from the AI Consortium they set up in 2025 and a new round of roundtables with banks and insurers. The Financial Policy Committee had already flagged, in April 2025, that AI used in core decisions, trading and operations could become a systemic risk. In its March 2026 perimeter report, the FCA added a note of its own: general-purpose AI tools giving financial guidance to consumers may sit outside the regulated perimeter, and the government should consider moving the boundary if harm emerges.
For retail investors, the last point is the one that matters. In the UK, as in the EU and the US, the regulated firms are supervised — the chatbot you ask for stock picks is not. The regulators have noticed the gap; whether they close it before someone is hurt is the question the Treasury Committee was asking.
Sources: Covington, Global Policy Watch — UK financial services regulators' approach to artificial intelligence in 2026 (Apr 2026); House of Commons Treasury Committee — Artificial intelligence in financial services (Jan 20, 2026); FCA — Research note: AI in UK financial services