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 The A, B, C, & D of Medicare Learn about all the parts of Medicare with this informative and enjoyable article. Why Medicare Should Be Part of Your Retirement Strategy How Medicare can address health care needs in your retirement strategy. A House Divided By understanding a few key concepts during a divorce, you may be able to avoid common pitfalls.