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 The Pre-Retirement Checklist This checklist can give you a quick snapshot of how prepared you are. Dreaming Up an Active Retirement When you retire, how will you treat your next chapter? 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.