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 Put It in a Letter A letter of instruction provides additional and more personal information regarding your estate. 5 Benefits of Working in Retirement Here are 5 reason why you may consider working through retirement. Paying Off a Credit Card Enter various payment options and determine how long it may take to pay off a credit card.