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 Investing for Impact Learn how to build a socially conscious investment portfolio and invest in your beliefs. Bull and Bear Go To Market Learn about the difference between bulls and bears—markets, that is! The ABC’s of Auto Insurance What kind of auto insurance should you have? Do you know?