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 Buying Auto Insurance For Teen Drivers Tips on insuring your teen driver. Questions to Ask About Medicare Take the guesswork out of your IEP or SEP with this helpful article. Test Your Life Insurance Knowledge How much do you know about one of the most important tools you have to help protect your and your family’s financial future?