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 Other Sure Thing Though we don't like to think about it, all of us will make an exit sometime. Are you prepared? A Fruitful Retirement: Social Security Benefit Taking your Social Security benefits at the right time may help maximize your benefit. To Catch a Thief Having your identity stolen may result in financial loss plus the cost of trying to restore your good name.