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 Separating the Signal From the Noise A good professional provides important guidance and insight through the years. Consider Keeping Your Life Insurance When You Retire Reasons to retain your coverage into your retirement years. Getting a Head Start on College Savings A few strategies that may help you prepare for the cost of higher education.