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 Caring for Aging Parents As our nation ages, many Americans are turning their attention to caring for aging parents. Understanding Marginal Income Tax Brackets An inside look at how marginal income tax brackets work. Money Draining Food Myths These food myths will really put a drain on your wallet.