Carlos Nuzman, the head of the 2016 Rio de Janeiro Olympics, has been charged by Brazilian federal prosecutors with corruption, money laundering, tax evasion and running a criminal organisation.
Brazilian prosecutors announced the formal charges on Wednesday.
The 75-year-old Nuzman was arrested two weeks ago and is being held in prison.
Prosecutors also filed corruption charges against Nuzman's right-hand man at the Rio Olympic organising committee, Leonardo Gryner.
In the filing, prosecutors said the two "promoted, formed, financed, and integrated a criminal organisation aimed at committing the crimes of corruption and embezzlement in detriment of the State of Rio de Janeiro, Brazil's Olympic Committee and the organising committee of the Rio 2016 Olympics."
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Brazilian and French authorities say Nuzman helped pay $2 million to Papa Massata Diack to win votes to stage the 2016 Olympics.
In the vote in 2009 to pick the host city, Lamine Diack, Papa Massata's father, was a powerful IOC member from Senegal with sway over the African voting bloc.
Papa Massata Diack, Lamine Diack, former Rio governor Sergio Cabral, and businessman Arthur Cesar de Menezes Soares Filho were also charged in the filing.
Nuzman resigned last week as the president of the Brazilian Olympic Committee. He has denied any wrongdoing and wrote in his resignation letter that he was "unjustly implicated."
The filing says Nuzman has undeclared assets in Switzerland, including 16, 1-kilo gold bars.
"While Olympic medalists chased their dreams of gold medals, leaders of the Brazilian Olympic Committee stashed their gold in Switzerland," prosecutor Fabiana Schenider said when Nuzman was arrested.
