GRECO, the Council of Europe's anti-corruption body, published its 6th Round Evaluation Report on the United Kingdom on 20 August 2026, the Ministry of Justice said. The report had been adopted at GRECO's plenary in June 2026.

The evaluation examined measures to prevent corruption and promote integrity at sub-national level, focusing on London as the capital and on Kent, which volunteered and was selected as the second sub-national authority. According to the ministry's account, the report recognises UK efforts at national and sub-national level and highlights examples of good practice by the Greater London Authority and Kent County Council. It sets out 6 recommendations.

HM Government said it was considering the recommendations as of that date and would submit a report on measures taken to implement them by 31 December 2027, in line with GRECO's procedural rules. That deadline is a planned commitment reported at the time, not a completed step.