On 20 January 2026, the PRA published PS1/26, finalising Basel 3.1 rules and related policy materials. The package largely confirms the near-final policy, with minor clarifications. This article provides an overview of the final rules. This article provides an overview of the final UK Basel 3.1 rules.

This article outlines the key changes to the calculation of Credit valuation adjustment and counterparty credit risk, as part of the Basel 3.1 final rules (PS1/26).

This article highlights the key changes to real estate exposures under the standardised approach to credit risk, as set out in the final Basel 3.1 rules (PS1/26).

This article highlights the key changes to the calculation of own funds requirement for operational risk, as set out in the final Basel 3.1 rules (PS1/26).

This article highlights the key changes to exposures to corporates under the standardised approach to credit risk, as set out in the final Basel 3.1 rules (PS1/26).

This article highlights the key changes to the retail exposure class under the standardised approach to credit risk, as set out in the final Basel 3.1 rules (PS1/26).

This article outlines the changes relating to exposures to institutions under the standardised approach of credit risk, as part of the Basel 3.1 final rules (PS1/26).

This article outlines the key changes to the calculation of market risk capital requirements as part of the Basel 3.1 final rules (PS1/26).

This article highlights the key changes to exposures and default under the standardised approach to credit risk, as set out in the final Basel 3.1 rules (PS1/26).

This article outlines the reporting changes, as set out in the final Basel 3.1 rules (PS1/26).

This article highlights the key changes to the treatment of off-balance sheet items under the standardised approach to credit risk, as set out in the final Basel 3.1 rules (PS1/26).