IRS 2009 Statistics Posted on October 20, 2011 (November 17, 2022) by LONYOUNG IRS statistics now available for 2009 tax returns. The highest earning 1% of all U.S. individual taxpayers paid 36.7% of all federal income taxes. The highest earning 5% paid 58.7%. The bottom 50% paid only 2.25% of total federal income tax.
