The "Jersey Shore" alum was also ordered to undergo two years of supervised release, complete 500 hours of community service, and pay a $10,000 fine.
Sorrentino plead guilty to skipping $123,913 in 2011 taxes. He got off relatively easy: Sorrentino faced a five-year prison sentence but will serve less than a year.
Michael "The Situation" Sorrentino, centre, and castmates from Jersey Shore: Paul "Pauly D" DelVecchio, Nicole "Snooki" Polizzi, and Jenni "JWoww" Farley, in 2010.
Michael "The Situation" Sorrentino leaves federal court with his fiancee Lauren Pesce after his sentencing in Newark, N.J., today.
But Sorrentino, 37, had hoped for probation when he entered his plea under a deal that ditched a raft of other charges.
Sorrentino first hit the public spotlight when Jersey Shore debuted, with the show quickly becoming a cultural phenomenon and making instant stars out of its hard-partying cast members.
Sorrentino was one of the self-described "guidos" among the pack of hard-partying pals featured on MTV's "Jersey Shore", which premiered in 2009. Marc Sorrentino was arrested along with his brother in 2014. He was sentenced to two years in prison for tax fraud.
The U.S. Attorney in New Jersey charged the brothers for filing false tax returns and inaccurately reporting some $8.9 million in income.