The organizer of the Tour de France, Amaury Sport Organization, has not yet commented about the USADA's statements.
Armstrong retired last year and has been since racing in triathlons.
He previously had an annual income of $500,000, according to Sports Illustrated's Fortunate 50 rankings from 2004 and 2005. He is believed to be worth $100 million.
His foundation, Livestrong, had previously stood staunchly beside him.
Garvey has said Armstrong "personally contributed nearly $6.5 million to propel his foundation's services to cancer survivors and their families." Forbes, however, estimated that Armstrong could lose at least $50 million in product endorsements over the next five years.