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. Pay Yourself First It sounds simple, but paying yourself first can really pay off. Managing the Risk of Outliving Your Money Steps to help you sustain and grow your retirement savings.