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 Medicare Advantage 101 Overview of Medicare Advantage, what’s in them, special rules, and more. Retiring Wild: National Parks and You Get ready to enjoy America’s national park system with this helpful article. Creative Ways to Motivate Your Employees Five creative (and inexpensive) ideas for motivating your employees.