George Clinton has allegedly been atomic dogging the U.S. government once again ... so says Uncle Sam who just filed yet ANOTHER federal tax lien filed against the music legend.
According to documents filed in Leon County, Florida ... Clinton failed to pay $7,457.89 worth of taxes in 2009 and $13,301.57 for the year 2010.
As TMZ first reported, Clinton already owes $115,552.27 to the IRS for the tax years 2007 and 2008. Grand total for ALL FOUR years ... $136,281.73.
Calls to Clinton's camp have not been returned.