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 White Elephant Inheritance This article deals with how one might deal with a burdensome inheritance. Forecast This short video helps explain why markets can be as unpredictable as the weather. Countdown to College Preparing for college means setting goals, staying focused, and tackling a few key milestones along the way.