<P> During FY2016 , the federal government collected approximately $3.27 trillion in tax revenue , up $18 B ( billion ) or 1 % versus FY2015 . Primary receipt categories included individual income taxes ( $1,546 B or 47 % of total receipts ) , Social Security / Social Insurance taxes ( $1,115 B or 34 % ) , and corporate taxes ( $300 B or 10 % ) . Other revenue types included excise , estate and gift taxes . </P>
<P> During FY2016 , the federal government collected approximately $3.27 trillion in tax revenue , up $18 B ( billion ) or 1 % versus FY2015 . Primary receipt categories included individual income taxes ( $1,546 B or 47 % of total receipts ) , Social Security / Social Insurance taxes ( $1,115 B or 34 % ) , and corporate taxes ( $300 B or 10 % ) . Other revenue types included excise , estate and gift taxes . </P>
what are the biggest sources of revenue for the federal government
what are the biggest sources of revenue for the federal government
individual income taxes Social Security / Social Insurance taxes corporate taxes
individual income taxes Social Security / Social Insurance taxes corporate taxes