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 Question Thank you! Oops! Related Content Social Security: Five Facts You Need to Know Here are five facts about Social Security that are important to keep in mind. 4 Elements of an Estate Strategy Learn about the importance of having an estate strategy in this helpful and informative video. The Richest Man in Babylon In good times and bad, consistently saving a percentage of your income is a sound financial practice.