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 Is Term Life Insurance for You? Term insurance is the simplest form of life insurance. Here's how it works. The A, B, C, & D of Medicare Learn about all the parts of Medicare with this informative and enjoyable article. Retiree Health Care Coverage Overseas Retirees traveling abroad need to know that their health insurance travels with them.