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 Estate Management Checklist Is your estate in order? This short quiz may help you assess your overall strategy. The Average American Budget Learn about the average American budget in this fun and interactive piece. The Three Keys to a Great Password Have fun and learn how to craft the perfect password with the help of this highly engaging infographic.