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 Question Thank you! Oops! Related Content Breaking Down the Parts of Medicare Medicare is broken down into four specific parts—but what do they mean? This article will help you understand each piece. How to Read Your Credit Report Solve a mystery while learning how important your credit report is with this story-driven interactive. Creative Ways to Motivate Your Employees Five creative (and inexpensive) ideas for motivating your employees.