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 Making a Charitable Gift Did you know that there are benefits and limitations when you decide to donate stock? Learn more about your options. Financial Aid for Students 101 Help your college-bound child explore scholarships, grants, and more with this article on paying for higher education. The History of Currency Currency has been around for a long time. Here’s a quick history lesson.