IRS Tax Bracket Calculator – iOS and Android App Posted on May 15, 2014May 15, 2014 by Kevin Sloan This tax brackets calculator provides federal & state tax rates from 2011 through 2014 and displays this information through charts and tables. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to email this to a friend (Opens in new window)