Los Angeles City attorney's spokesman Frank Mateljan says the actress was charged Tuesday and is due for arraignment on Sept. 27.
Mateljan says Bynes was charged for leaving the scene of two accidents, one on April 10 and another on Aug. 4, without providing proper information. The first incident occurred just days after Bynes was arrested on suspicion of drunken driving after grazing a sheriff's patrol car. She has pleaded not guilty in that case.
The 26-year-old is best known for her role in the WB's "What I Like About You" and the film "Easy A."
Her publicist Melissa Raubvogel did not immediately return an email message seeking comment.