UK MPs demand AI stress testing as regulators fail to address mounting financial sector risks

UK Regulators Face Scrutiny Over AI Risk Management

The UK's financial watchdogs are failing to keep pace with the rapid spread of artificial intelligence across the financial sector, according to a damning UK Treasury Committee report published in January 20261

1

. The cross-party group of lawmakers warned that the Bank of England, Financial Conduct Authority (FCA), and HM Treasury risk exposing consumers and the financial system to "potentially serious harm" by maintaining their wait-and-see approach to financial regulation2

2

. With more than 75% of UK financial services firms now deploying AI across core functions—from processing insurance claims to performing credit assessments—the committee found a troubling lack of accountability for AI-driven decisions and insufficient understanding of AI risk among financial institutions3

3

.

Accountability Gap Threatens Consumer Protection

During parliamentary hearings, a critical contradiction emerged regarding responsibility when AI systems cause consumer harm. David Geale, the FCA's Executive Director for Payments and Digital Finance, testified that individuals within financial services firms were "on the hook" for harm caused through AI1

1

. However, trade association Innovate Finance revealed that management in financial institutions struggled to assess AI risk due to the "lack of explainability" of AI models—directly conflicting with regulatory requirements for senior managers to demonstrate they understood and controlled risks1

1

. Treasury Committee chair Meg Hillier emphasized the urgency: "Based on the evidence I've seen, I do not feel confident that our financial system is prepared if there was a major AI-related incident and that is worrying"4

4

. The report demanded clear lines of accountability, citing scenarios where AI systems unfairly deny credit to customers in urgent need, such as for medical treatment, leaving ambiguity about whether developers, deploying institutions, or data providers bear responsibility1

1

.

Call for AI Stress Testing and Market Shock Preparedness

MPs are demanding that regulators implement AI stress testing to assess the financial sector's readiness for AI-driven market shocks2

2

. Industry specialists warned that AI trading amplifies herding behaviour and therefore increases risks to the financial system, while also heightening cybersecurity risks2

2

. Jonathan Hall, an external member of the Bank of England's Financial Policy Committee, told lawmakers that AI-specific market stress tests would be valuable2

2

. The committee also highlighted significant systemic risk from financial firms' reliance on a small group of US tech giants for AI and cloud providers, including Amazon Web Services and Google Cloud4

4

. An AWS outage in October during the inquiry knocked several companies, including Lloyds Banking Group, offline, underlining the threat2

2

.

Delayed Implementation of Critical Third Parties Regime

The committee sharply criticized the government for failing to implement the Critical Third Parties regime, which was introduced in January 2025 to give the FCA and Bank of England power to investigate non-financial firms providing critical services to UK financial services, including AI and cloud providers1

1

. "Over a year since the regime was established, it is not clear to us why HM Treasury has been so slow to use the new powers at its disposal," the report stated1

1

. Both Amazon Web Services and Google Cloud told MPs they expect to be brought into the regime, with Google revealing it is already prepared, yet the Treasury has yet to act2

2

. MPs called for cloud providers to be designated critical industries to improve regulatory oversight2

2

.

Guidance on AI Safeguards Demanded by Year-End

The committee called on the FCA to publish guidance on AI safeguards in the financial sector by the end of 2026, including identifying the individuals responsible when opaque credit decisions or other AI failures harm consumers2

2

. The report warned that AI carries "significant risks" including the potential exclusion of vulnerable consumers through algorithmic tailoring, fraud, and the spread of unregulated financial advice through AI chatbots3

3

. Financial services contributed £294 billion to the UK economy in 2023, representing around 13% of gross value added across all economic sectors1

1

. However, successive governments have adopted a light-touch approach to AI regulation for fear of discouraging investment1

1

.

Government Response and AI Champions Appointment

In response to the mounting pressure, the Treasury announced two new AI Champions to spearhead the safe roll-out of AI in financial services: Harriet Rees from Starling Bank and Rohit Dhawan from Lloyds Banking Group2

2

. They will help firms seize opportunities "while protecting consumers and financial stability" and report to Economic Secretary to the Treasury Lucy Rigby2

2

. A Treasury spokesman said the government wants to "strike the right balance between managing the risks posed by AI and unlocking its huge potential"2

2

. Both the Bank of England and FCA said they welcomed the report and would consider the recommendations "carefully"2

2

. Industry observers note that regulatory ambiguity risks holding back responsible AI deployment as systems grow harder to oversee5

5

. Dermot McGrath, co-founder at ZenGen Labs, told Decrypt that while the UK's fintech sandbox approach "worked because regulators could see what firms were doing," artificial intelligence "breaks that model completely" due to the opacity of model-driven decisions5

5

.