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 How Compound Interest Works Use this calculator to better see the potential impact of compound interest on an asset. Money Draining Food Myths These food myths will really put a drain on your wallet. When Life Insurance Becomes Taxable Life insurance proceeds are generally tax-free. But not in all cases.