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 Stocks Work Understanding how a stock works is key to understanding your investments. A Bucket Plan to Go with Your Bucket List A bucket plan can help you be better prepared for a comfortable retirement. What's My Potential Estate Tax? This calculator helps estimate your federal estate tax liability.