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 The ABC’s of Auto Insurance What kind of auto insurance should you have? Do you know? How to Conquer the World - 5 Financial Strategies for Savvy Learn more about women taking control of their finances with this infographic. Global and International Funds Investors seeking world investments can choose between global and international funds. What's the difference?