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 Working With A Financial Professional A financial professional is an invaluable resource to help you untangle the complexities of whatever life throws at you. When to Self-Insure Choosing to bear the financial burden of an adverse event is called self-insuring. Do you know what that entails? Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one.