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 Roth IRA for Kids Learn about the benefits and requirements of opening a Roth IRA for kids. Split Annuity Strategy Here's one strategy that combines two different annuities to generate income and rebuild principal. Emotional vs. Strategic Decisions Information vs. instinct. Are your choices based on evidence of emotion?