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. Life and Death of a Twenty Dollar Bill How long does a $20 bill last? The Lowdown on Those Free Credit Scores What’s the deal with your yearly free credit report?