French prosecutors seized about €65 million from McKinsey through Belgian authorities. The sum represents 96 percent of the tax loss the consulting giant allegedly evaded. The seizure happened on August 19. McKinsey has been under investigation since March 2022 for aggravated money laundering of tax fraud.
The probe followed a Senate inquiry into private consultants’ influence on public policy since 2017. Investigators looked at whether McKinsey’s French entities avoided corporate tax between 2011 and 2020. After hearings in 2025 and 2026, prosecutors sought Belgian help through mutual legal assistance.
This case is separate from other investigations into McKinsey. Those probes concern campaign finance and favoritism linked to Emmanuel Macron’s 2017 and 2022 elections. Searches have been carried out at McKinsey executives’ homes, the Health Ministry, the firm’s Paris office, and Macron’s party headquarters.
Reference:
Le Monde, “Affaire McKinsey: le Parquet national financier annonce une saisie de 65 millions d’euros dans l’enquête pour fraude fiscale,” published September 4, 2026. https://www.lemonde.fr/societe/article/2026/09/04/affaire-mckinsey-le-parquet-national-financier-annonce-une-saisie-de-65-millions-d-euros-dans-l-enquete-pour-fraude-fiscale_6765827_3224.html