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 Prescription Drug Benefits Under Medicare (Part D) Do you need to enroll in Medicare Part D? Read this article to learn more about whether you need this coverage A Fruitful Retirement: Social Security Benefit Taking your Social Security benefits at the right time may help maximize your benefit. Leaving Your Lasting Legacy Want to do more with your wealth? You might want to consider creating a charitable foundation.