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 Pay Yourself First It sounds simple, but paying yourself first can really pay off. What Can a Million Dollars Buy You? $1 million in a diversified portfolio could help finance part of your retirement. 9 Facts About Social Security There are things about Social Security that might surprise you.