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 Coaches Coaches have helped you your whole life, in ways big and small. We'd like to be one of them. A House Divided By understanding a few key concepts during a divorce, you may be able to avoid common pitfalls. Making Your Tax Bracket Work Have you explored all your options when it comes to managing your taxable income?