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 Put It in a Letter A letter of instruction provides additional and more personal information regarding your estate. Making a Charitable Contribution There are benefits and limitations when you decide to donate stock. Consider Keeping Your Life Insurance When You Retire Reasons to retain your coverage into your retirement years.