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 Message Thank you! Oops! Related Content Forecast This short video helps explain why markets can be as unpredictable as the weather. A Look at Diversification Diversification is an investment principle designed to manage risk, but it can't prevent against a loss. Where Is the Market Headed? We all know the stock market can be unpredictable. We all want to know, “What’s next for the financial markets?”