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 Managing the Risk of Outliving Your Money Steps to help you sustain and grow your retirement savings. When Special Care Is Needed: The Special Needs Trust A special needs trust helps care for a special needs child when you’re gone. Understanding Equity Compensation Net Unrealized Appreciation and how it affects tax responsibilities.