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 Money Draining Food Myths These food myths will really put a drain on your wallet. Extended Care: A Patchwork of Possibilities What is your plan for health care during retirement? Buying Auto Insurance For Teen Drivers Tips on insuring your teen driver.