The 38-year-old's real name is Dwight Grant, and he's from the Philadelphia suburb of Lansdale. He was sentenced in federal court Thursday and ordered to report to prison Sept. 12. He pleaded guilty in August.
Prosecutors say Sigel owes more than $700,000 for the tax years 1999 through 2005.
A U.S. District Court judge ordered him to pay all taxes, penalties and interest as determined by the Internal Revenue Service. The rapper told the judge he accepted "total responsibility" for not paying his taxes.
Sigel also has served time on drug and weapons charges and for prescription drug use while on federal probation. His albums include "The Truth," ''The B. Coming" and "The Solution."