IRS Places $4 Million Tax Lien Against Comedian Katt Williams

First placed lien against Williams for $284,000 in 2010

Slap-happy Katt Williams better learn to take it like he gives it -- because the IRS just walloped the comedian with an astronomical tax lien … totaling over $4 MILLION.

Uncle Sam filed the lien against Williams, claiming the comedian failed to pay $3.2 million in taxes in 2008 … and also bailed on another $829,352 in 2009.