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 Inflation and the Real Rate of Return Learn about the role of inflation when considering your portfolio’s rate of return with this helpful article. Creative Ways to Motivate Your Employees Five creative (and inexpensive) ideas for motivating your employees. The Lowdown on Those Free Credit Scores What’s the deal with your yearly free credit report?