Hill pleaded guilty last year to not paying federal taxes on $1.8 million earned from 2005 to 2007. A judge two weeks ago said Hill had paid only about $50,000 of more than $500,000 she owes.
She faces up to a year in prison on each of three counts. Her attorney is seeking probation for her.
The 37-year-old South Orange resident hasn't released much music since her 1998 solo debut, "The Miseducation of Lauryn Hill," which won five Grammy Awards.