He may have just dropped a cool $55 million on a G-5 private plane, but Soulja Boy owes almost $30,000 in back taxes and RadarOnline.com has all the exclusive details.

The 21-year-old, whose real name is DeAndre Way, has been celebrating his birthday in style, but meanwhile the tax man has been looking for him.

According to official documents obtained by RadarOnline.com, the State of California filed a $26,805 tax lien against the singer on March 24, 2011.