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 Emerging Market Opportunities What are your options for investing in emerging markets? When to Self-Insure Choosing to bear the financial burden of an adverse event is called self-insuring. Do you know what that entails? The Anatomy of an Index The S&P 500 represents a large portion of the value of the U.S. equity market, it may be worth understanding.