California tax authorities said Anderson owes $524,241 in personal income taxes. The Franchise Tax Board included the "Baywatch" star on a list of the state's 500 biggest income-tax delinquents posted Friday.
A call to Anderson's tax attorney, Robert Leonard, wasn't immediately returned.
WEST HOLLYWOOD, CA - MARCH 22: Actress Pamela Anderson attends a press conference for FrogAds.com at Petit Ermitage Hotel on March 22, 2012 in West Hollywood, California. (Photo by Alberto E. Rodriguez/Getty Images)