Basel III Rules Published in Three Quarters of Member Jurisdictions

The Basel Committee on Banking Supervision reported on 5 October 2026 that three quarters of its 27 member jurisdictions have now published regulations implementing the full set of Basel III standards, and that almost all member jurisdictions have publicly announced that banks must apply Basel III by April 2027 or earlier.

The findings come from the Committee’s latest progress update and accompanying monitoring dashboard, which set out the jurisdictional adoption status of the Basel III standards as of end-September 2026 and show where the standards are already implemented by banks. The update covers the final elements of Basel III published by the Committee in December 2017 and the finalised minimum capital requirements for market risk of January 2019. The implementation date for these reforms was 1 January 2023, as announced by the Group of Central Bank Governors and Heads of Supervision (GHOS), the Committee’s oversight body, in March 2020.

As of 30 September 2026, three quarters of member jurisdictions had published their rules adopting the final Basel III, meaning all standards with an implementation date of 1 January 2023, according to the update. The revised credit risk and operational risk standards, as well as the output floor, are already effective in around 85% of member jurisdictions. The CVA standard is effective in nearly 70% of member jurisdictions and the revised market risk standards in more than 40%, the adoption progress summary shows. Overall, implementation of the final Basel III standards is now completed in 47% of member jurisdictions.

Progress Since End-September 2025

Since the previous summary as of end-September 2025, three jurisdictions have published additional Basel III standards, according to the summary. In the past 12 months, one additional jurisdiction adopted the equity investment in funds standard and two jurisdictions implemented different elements of the disclosure framework. Regarding the implementation of the standards by banks, the market risk standard became effective in one additional jurisdiction during the same period.

The status of implementation in Russia is not included in the summary or the accompanying dashboard, because its progress has not been updated since end-September 2021.

Looking ahead, the summary states that implementation of the final Basel III standards is expected to be nearly complete by the first half of 2027. With few exceptions, all member jurisdictions have publicly announced that banks must apply the standards by April 2027 or earlier. The finalised Basel III post-crisis reforms were published by the Committee in 2017–19 and were set to be in effect since 1 January 2023, with a five-year phase-in for some elements.

Monitoring and Oversight

The update forms part of the Committee’s Regulatory Consistency Assessment Programme (RCAP), which was established to follow progress in adopting and implementing corresponding domestic regulations, assess their consistency and analyse regulatory outcomes, and it continues periodic monitoring initiated more than a decade ago. Timeliness monitoring is based on information provided by each member jurisdiction, and the RCAP implementation dashboard uses colour codes to signal the different stages of adoption of the standards. The dashboard shows views by standard and by jurisdiction, includes references and links to domestic implementation documents, and provides the implementation history of Basel standards by member jurisdiction, including the publication and implementation dates of domestic regulations.

The 1 January 2023 implementation date was set on 27 March 2020, when the GHOS deferred the outstanding Basel III standards by one year to increase the operational capacity of banks and supervisors to respond to Covid-19. The decision deferred the December 2017 Basel III standards, the January 2019 revised market risk framework and the December 2018 revised Pillar 3 disclosure requirements to 1 January 2023, and extended the transitional arrangements for the output floor by one year to 1 January 2028. GHOS members unanimously reaffirmed their expectation of full, timely and consistent implementation of all Basel III standards on the revised timeline.

At its 9 March 2026 meeting, the GHOS welcomed further implementation progress, stating that about 75% of member jurisdictions had implemented, or would shortly implement, the standards and that the remaining jurisdictions had communicated their plans to do so. Members reaffirmed their expectation of “full and consistent implementation of the Basel III framework by all member jurisdictions as soon as possible,” pointing to the series of shocks to financial markets over the past few years and recent market developments as having highlighted the importance of a prudent global regulatory framework and a regulatory level playing field. The GHOS tasked the Committee with continuing to monitor and assess the full and consistent implementation of Basel III.

At the same meeting, the GHOS endorsed two targeted reviews: a review of specific elements of the Committee’s prudential standard for banks’ cryptoasset exposures in light of recent cryptoasset market developments, and a targeted review of the governance and transparency of the assessment methodology for global systemically important banks, with updates to be provided later in 2026. The GHOS is chaired by Tiff Macklem, Governor of the Bank of Canada, and the Basel Committee is chaired by Erik Thedéen, Governor of the Sveriges Riksbank.