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 A Meal for All Generations When it comes to generational differences, knowing the facts can be difficult. Contributing to an IRA? Determine if you are eligible to contribute to a traditional or Roth IRA. The Richest Man in Babylon In good times and bad, consistently saving a percentage of your income is a sound financial practice.