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 It Was the Best of Times, It Was the Worst of Times All about how missing the best market days (or the worst!) might affect your portfolio. A Meal for All Generations When it comes to generational differences, knowing the facts can be difficult. Your Changing Definition of Risk in Retirement A change in your mindset during retirement may drive changes to your portfolio.