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 The Wild West of Data Theft Learn about cyber liability insurance in this entertaining video. Do Your Kids Know The Value of a Silver Spoon? You taught them how to read and how to ride a bike, but have you taught your children how to manage money? It May Be Time for a Financial Checkup It’s never a bad time to speak with your financial professional about changes in your situation.