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 When to Self-Insure Choosing to bear the financial burden of an adverse event is called self-insuring. Do you know what that entails? The Three Keys to a Great Password Have fun and learn how to craft the perfect password with the help of this highly engaging infographic. Estimate Your RMD Help determine the required minimum distribution from an IRA or other qualified retirement plan.