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 Making Your Tax Bracket Work Have you explored all your options when it comes to managing your taxable income? Managing the Risk of Outliving Your Money Steps to help you sustain and grow your retirement savings. A Cheat Sheet for Sending Your Kid to College Dropping off your child is loaded with emotions; here are a few tips for a smoother experience.