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 The Investment Risk No One’s Ever Heard Of You face a risk for which the market does not compensate you, that can not be easily reduced through diversification. Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. Estate Management 101 A will may be only one of the documents you need—and one factor to consider—when it comes to managing your estate.