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 Stay Safe with a B.O.P. At Your Back Learn about the advantages of Business Owner Policies with this highly educational and fun animated video. The Financial Literacy Crisis Many Americans are operating their personal finances with only the barest minimum of knowledge. 9 Facts About Retirement Regardless of how you approach retirement, there are some things about it that might surprise you.