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 Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable. Consider Keeping Your Life Insurance When You Retire Reasons to retain your coverage into your retirement years. Paying Off a Credit Card Enter various payment options and determine how long it may take to pay off a credit card.