Basel Committee: three quarters of members have adopted final Basel III, and almost all apply it by April 2027
The Basel Committee on Banking Supervision published on 5 October its latest update on how far its 27 member jurisdictions have implemented the final Basel III reforms.
Where things stand. As of 30 September 2026, three quarters of member jurisdictions have published regulations adopting the full set of final Basel III standards, meaning every standard with an implementation date of 1 January 2023. The revised credit-risk and operational-risk standards and the output floor are already effective in around 85% of member jurisdictions. Almost all members have publicly announced that their banks must apply Basel III by April 2027 or earlier.

What it covers. The update and the accompanying monitoring dashboard track the final elements of Basel III published in December 2017 and the finalised market-risk capital requirements of January 2019. The agreed implementation date for these was 1 January 2023, set by the Group of Governors and Heads of Supervision (GHOS) in March 2020. The dashboard records, jurisdiction by jurisdiction, when domestic rules were published and when they took effect.
The message. At its 9 March 2026 meeting the GHOS reaffirmed its expectation of "full and consistent implementation" of Basel III by all members as soon as possible, and said the shocks to financial markets of recent years had shown the importance of a prudent global framework and a level playing field. The committee will keep monitoring and assessing implementation.
The release does not name which members are behind; the dashboard shows where each jurisdiction stands.