Leading UK banks including Barclays, HSBC, and Lloyds have publicly criticized the Bank of England for what they call a misleading comparison between UK and US capital requirements. The dispute centers on the Bank’s December 2025 Financial Policy Committee review, which lowered the Tier 1 capital benchmark from 14% to approximately 13% of risk-weighted assets a first cut in ten years.
The Crux of the Contention
The Bank of England published a cross-border comparison within its review aiming to position UK rules relative to those in the US. They argued that direct comparisons without adjustments were flawed and that, after factoring in these adjustments, UK capital demands were roughly in line with US standards.
However, British lenders contend the opposite. They say the Bank’s adjusted data actually underplays how strict UK regulations are compared to US ones. The disagreement boils down to how risk-weighted assets (RWAs) are calculated, with the UK and US applying different methodologies.
These RWAs aren't just tallies of assets but are risk-sensitive measurements, so the weighting varies by asset type. UK banks stress that the BoE’s figures overlook critical structural differences, making it appear that US banks face tougher constraints than they do in reality, while UK banks seem less burdened than they feel internally.
plus UK institutions highlight competitive edges held by US banks, such as greater capital access and distinct financial system structures. These give US banks the ability to operate with comparable ratios but arguably face fewer actual limitations.
This disagreement is not new. Earlier in 2026, several UK banks resisted the BoE’s proposals to reduce capital buffers further to encourage lending, a rare instance of regulatory pushback that signals deeper unease.
