Crispin Odey, one of Britain’s largest hedge fund managers and political donors, has been charged with indecent assault.
He allegedly assaulted a woman over 16 at an address in Chelsea in July 1998, the Crown Prosecution Service said.
Mr Odey, a Brexit and Boris Johnson supporter, was charged on May 14.
In a brief statement, Mr Odey said: “The allegation is denied and I will strongly dispute this matter. ”
The Sunday Times’ latest rich list shows Mr Odey, 61, and his wife are worth £ 825million.
Mr. Odey founded Odey Asset Management in 1991. He attended Harrow School and then studied history and economics at Christ Church, Oxford.
He owns a house on Swan Walk, a Thames side street in Chelsea.
In the run-up to the 2016 referendum on the European Union, Mr Odey has donated more than £ 870,000 to pro-Brexit groups.
He has also made headlines in the past for spending around £ 150,000 on a Palladian-style stone temple to house chickens in his Gloucestershire mansion.