The Cherry On A Disastrous Year End Cake: Katt Williams Hit With A $4 Million Tax Lien

Katt Williams better be saving his tour money because Uncle Sam is on his case. The comedian was just hit with a huge bill by the Internal Revenue Service.

Katt, real name Micah Sierra Williams, is accused of stiffing the government out of more than $4 million.

According to TMZ, Katt failed to pay $3.2 million in taxes in 2008 ... and another$829,352 in 2009. This is just the latest in a long string of bad news for the 39-year old in 2012.

This year he was sued for $5 million by a former assistant who claims he punched her, slapped a Target employee in the face in Sacramento, had numerous meltdowns at shows where he tried to fight audience members, led Sacramento police on a high speed chase and was arrested in California as a result of the chase.

Katt was also arrested in Seattle following a bar fight, pulled a gun on fellow comedianFaizon Love and retired from stand up comedy, only to unretire a few days later.