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 Please Leave Home Without It Concerns over identity theft continue to grow, especially with data breaches at major companies and financial institutions. Questions to Ask About Medicare Take the guesswork out of your IEP or SEP with this helpful article. 8 Financial Milestone Birthdays Get ready to celebrate your financial birthdays in this informative infographic.