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 Are Alternative Investments Right for You? With alternative investments, it’s critical to sort through the complexity. Data Thieves from Outer Space Learn about the dangers of internet fraud with this highly educational and fun “pulp” comic. 3 Estate Challenges for Blended Families This article will help your clients with blended families think and prepare their estate strategy.