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 Sequence of Returns A look at how variable rates of return impact investors over time. Investing with Your Heart For some, the social impact of investing is just as important as the return, perhaps more important. Perception vs. Reality There’s an alarming difference between perception and reality for current and future retirees.