BoE delays Basel rule on banks' trading to 2028, eases capital burden on midsize banks

The Bank of England has delayed the implementation of the Basel 3.1 Fundamental Review of the Trading Book (FRTB) internal models approach by one year to January 2028, citing ongoing uncertainty regarding other jurisdictions' adoption, notably the United States. Simultaneously, the BoE eased capital requirements for mid-sized banks by raising the MREL threshold to £25-40 billion, a move welcomed by the industry and aligning with government objectives to foster financial sector growth. These adjustments provide firms with greater certainty and flexibility, reflecting a broader global trend of staggered Basel rule implementation.

Analysis

The Bank of England has announced two significant regulatory adjustments impacting the UK banking sector. Firstly, the implementation of the internal models approach under the Fundamental Review of the Trading Book (FRTB), a key component of Basel 3.1, has been postponed by one year to January 2028. This delay is a direct response to uncertainty surrounding the implementation timelines in other jurisdictions, particularly the United States, and aims to prevent placing UK banks at a competitive disadvantage. This aligns with a similar delay by the EU until 2027, reflecting a broader global trend of staggered adoption of these complex rules. Secondly, the Bank of England has eased capital requirements for mid-sized banks by raising the asset threshold for issuing loss-absorbing MREL debt to a range of £25-40 billion, up from a previous £15-25 billion. This move, which was more generous than proposals during the consultation period, is expected to directly benefit lenders such as OneSavings Bank and Metro Bank by reducing their compliance burden and has been explicitly welcomed by industry leaders. These decisions signal a pragmatic regulatory approach that is sensitive to both global market dynamics and domestic policy, aligning with government calls for a shift towards a more growth-supportive financial framework.

Key Decisions for Investors

• The easing of MREL capital requirements is a direct positive catalyst for UK mid-sized banks, warranting a review of lenders in this category as they stand to benefit from lower capital costs and enhanced growth capacity.
• For large UK banks, the one-year delay on FRTB implementation provides temporary relief on compliance costs but does not alter the long-term trajectory, meaning investors should factor in the eventual, albeit deferred, impact of the new trading book rules.
• Investors should recognize the BoE's actions as a signal of a potentially more favorable regulatory environment, influenced by UK government policy, but must also monitor US regulatory developments, as they remain a key dependency and source of uncertainty for the UK's implementation timeline.