What's My Potential Estate Tax? This calculator helps estimate your federal estate tax liability. 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 Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates. Breaking Down the Parts of Medicare Medicare is broken down into four specific parts—but what do they mean? This article will help you understand each piece. A Look at Diversification Diversification is an investment principle designed to manage risk, but it can't prevent against a loss.