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 Wild West of Data Theft Learn about cyber liability insurance in this entertaining video. Your Changing Definition of Risk in Retirement A change in your mindset during retirement may drive changes to your portfolio. Inflation & Your Money It's important to understand how inflation is reported and how it can affect investments.