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 Message Thank you! Oops! Related Content Impact Investing or Philanthropy This fun piece can help your clients explore the benefits of impact investing versus founding a philanthropy. The Business Cycle Understanding the economy's cycles can help put current business conditions in better perspective. Please Leave Home Without It Concerns over identity theft continue to grow, especially with data breaches at major companies and financial institutions.