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 Cost of Medical Care Learn about the risks of not having health insurance in this informative article. Social Security: Five Facts You Need to Know Here are five facts about Social Security that are important to keep in mind. The Real Cost of a Vacation Home What if instead of buying that vacation home, you invested the money?