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 The ABC’s of Auto Insurance What kind of auto insurance should you have? Do you know? Extended Care: A Patchwork of Possibilities What is your plan for health care during retirement? Risk Perspective Is it possible to avoid loss? Not entirely, but you can attempt to manage risk.