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 Question Thank you! Oops! Related Content The Wild West of Data Theft Learn about cyber liability insurance in this entertaining video. Are Alternative Investments Right for You? With alternative investments, it’s critical to sort through the complexity. Roth IRA for Kids Learn about the benefits and requirements of opening a Roth IRA for kids.