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 Jane Bond: Infiltrating the Market Agent Jane Bond is on the case, cracking the code on bonds. Volunteering in Retirement For many, retirement includes contributing their time and talents to an organization in need. Contributing to an IRA? Determine if you are eligible to contribute to a traditional or Roth IRA.