• Bank of England proposes liquidity reforms focused on usability of assets
• New stress tests will assess banks’ ability to handle rapid deposit outflows
• Digital banking and social media are accelerating the pace of bank runs
• Regulators aim to improve operational readiness and access to central bank tools
• Smaller banks may face challenges adapting to new liquidity requirements
• Global regulators are rethinking liquidity risk following recent banking crises

The Bank of England has unveiled proposals to overhaul how banks manage liquidity, aiming to ensure that institutions can access cash more effectively during periods of severe stress.

The central bank’s prudential arm said the changes are designed to address weaknesses exposed during the banking turmoil of 2023, when the collapse of Silicon Valley Bank and the failure of Credit Suisse highlighted how quickly liquidity pressures can escalate.

Rather than requiring banks to hold significantly larger buffers of liquid assets, the proposed framework focuses on ensuring that those assets can actually be used when needed. 

Regulators are increasingly concerned that existing liquidity rules may create a false sense of security if assets cannot be mobilized quickly in a crisis.

“We’ve focused the changes not on increasing the amount of liquid assets banks have to hold, but instead on making sure that those assets do what they say on the tin and really are usable in the event of a run,” said Sam Woods, chief executive of the Prudential Regulation Authority.

A key element of the proposals is a new requirement for banks to conduct internal stress testing to assess how they would respond to rapid deposit outflows over a short time horizon. 

Institutions will be expected to model scenarios in which significant volumes of deposits leave within a week, reflecting the increasing speed at which liquidity events can unfold.

The Bank of England also aims to streamline reporting requirements and encourage firms to be better prepared to access central bank facilities during times of stress. This reflects a broader shift toward operational readiness, ensuring that banks can act quickly rather than relying solely on theoretical liquidity positions.

The reforms come against a backdrop of changing risk dynamics in the banking sector. 

The rise of digital banking, real time payments, and social media has accelerated the pace at which depositors can withdraw funds, increasing the risk of sudden and large scale bank runs.

Regulators pointed to the stark contrast between historical and recent events. In 2023, Silicon Valley Bank experienced deposit outflows of around 85 percent over just two days, compared with the collapse of Northern Rock in 2007, which saw outflows of roughly 20 percent over four days.

This shift has forced regulators to rethink how liquidity risk is measured and managed. 

Traditional assumptions about the pace of deposit withdrawals are no longer valid in an environment where customers can move funds instantly and react collectively to information shared online.

However, industry experts have cautioned that regulators must strike the right balance when introducing new requirements. 

There are concerns that additional liquidity expectations could place a disproportionate burden on smaller banks, which may lack the resources and infrastructure of larger institutions.

“The PRA will need to think carefully when imposing additional liquidity requirements on firms as a result of the new stress test,” said Rob Dedman, a partner at law firm CMS and a former senior regulator.

He added that smaller firms may require more time to adapt to new standards, particularly if operational or reporting requirements become more complex.

The proposals also reflect a broader international focus on strengthening resilience in the financial system. 

The renewed attention on liquidity risk comes as authorities in the United States are also reviewing banking rules, with a focus on ensuring that regulatory requirements do not unduly constrain lending while maintaining financial stability.

As the consultation process begins, financial institutions will need to assess how their current liquidity frameworks perform under extreme but plausible scenarios and consider what changes are required to meet the new standards.