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 Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. Roth IRA for Kids Learn about the benefits and requirements of opening a Roth IRA for kids. Building a Solid Financial Foundation Sustain financial well-being or create wealth through these actions.