Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content How Women Can Prepare For Retirement Are women prepared for a 20-year retirement? Retirement Questions That Have Nothing to Do With Money Things to consider before retirement. You Would Rather Be... Are you a thrill seeker, or content to relax in the backyard? Use this flowchart to find out more about your risk tolerance.