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 Saving for College 101 Here’s a crash course on saving for college. Term vs. Permanent Life Insurance When considering life insurance, it's important to understand your options. A Decision Not Made Is Still a Decision Investors who put off important investment decisions may face potential consequence to their future financial security.