The Bank of England is moving forward with proposals to relax certain capital regulations, despite growing concerns among its officials about escalating risks from artificial intelligence (AI), complex geopolitical tensions, and rapidly increasing leverage levels.

The central bank announced on Tuesday that it will launch a consultation on a set of reforms expected to reduce the overall capital requirement for UK banks against a key risk metric known as the "leverage ratio" by 20 basis points.

It will also make temporary adjustments to allow major domestic banks, including NatWest Group PLC, Lloyds Banking Group PLC, and Nationwide Building Society, to utilize their capital buffers during periods of market stress. A broader consultation on changes to this rule will also be conducted.

These proposed changes are the practical outcome of a policy judgment made by the Bank of England last December, when it stated that the optimal capital level for the banking system should be 1 percentage point lower than previous guidance, taking into account post-financial crisis regulatory reforms.

The banking industry cautiously welcomed that announcement at the time, but institutions have been reluctant to actively deploy their excess capital until the central bank implements specific regulatory changes.

The leverage ratio, a regulatory measure that limits the overall borrowing scale of banks, was one area the Bank of England indicated it would consider adjusting. This move has raised concerns among financial stability experts about potential risks.

Minutes from the Bank's Financial Policy Committee (FPC) meetings show that some members expressed "concern" that the proposed reforms "could lead to an unwelcome increase in market-based leverage, affecting the resilience of core UK financial markets."

The Bank of England stated it will assess the potential financial stability impacts of these reform proposals before launching a public consultation in the first quarter of next year.

Some market participants had previously hoped that UK government bonds (gilts) would be excluded from the leverage ratio calculation. Analysts at Lloyds Banking Group estimated last week that if such an adjustment were implemented, demand for gilts could see a "significant" increase, potentially helping the UK government reduce its financing costs by up to £3 billion.

However, the Bank of England did not propose an exemption for gilts. Instead, it suggested a series of reforms to reduce the binding force of the leverage ratio requirement.

These reforms include scrapping the countercyclical capital buffer requirement, adjusting how the leverage ratio is calculated in stress tests, and changing the current fixed 3.25% leverage requirement on Tier 1 capital to a base requirement of 3.0% plus a 0.25% releasable buffer that can be used in times of stress.

Another major regulatory change involves the additional capital buffers required for "Other Systemically Important Institutions" (O-SIIs). Affected institutions include all major UK banks except for HSBC Holdings PLC, Barclays PLC, and Standard Chartered PLC.

These three international banks are subject to a separate set of global regulatory rules, and the Bank of England would need agreement from international regulatory peers to modify related requirements.

The central bank stated that its Prudential Regulation Authority will use its existing powers to allow these capital buffers to be released during stress periods and will give banks several years to gradually rebuild their capital levels. A consultation on the methodology for setting O-SII buffers will also be launched in the second half of this year.

This move to ease regulatory rules comes as a global wave of opposition to post-financial crisis regulations sweeps through the banking industry. In the United States, the banking sector has seen multiple rounds of regulatory easing under the Trump administration.

In the UK, authorities have argued that more efficient capital regulation, following the regulatory bodies' secondary objective to promote financial competitiveness established in 2023, can help drive economic growth.

The European Union is set to release a highly anticipated report on July 17th, outlining proposals to enhance the competitiveness of the European banking sector, though reducing capital requirements is not expected to be a core element of that report.

Notably, the UK's push to relax capital rules coincides with escalating warnings about the potential impact of artificial intelligence on global financial markets.

The Bank of England's FPC noted that debt financing for AI-related companies "has been accelerating rapidly" and that "this trend is likely to strengthen as financing needs continue to grow."

The central bank stated, "The current pace of investment is historically unprecedented," and warned that a market reassessment of AI's prospects "could trigger a decline in stock prices, with market concentration, momentum-dependent positioning, and increasing leverage potentially amplifying volatility during a downturn."

Regulators in the UK and globally have long been concerned that AI could disrupt financial markets through mass layoffs, cybersecurity threats, and the potential bursting of asset bubbles formed around trillions of dollars in technology investments.

Furthermore, policymakers have warned that, more broadly, elevated asset valuations, increasing leverage in equity markets, the continued expansion of "higher-risk credit markets," and the "significant" impact of the Middle East crisis on the global risk environment are all areas requiring heightened attention.