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. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Contents When Special Care Is Needed: The Special Needs Trust A special needs trust helps care for a special needs child when you’re gone. A Living Trust Primer Living trusts are popular, but their appropriateness will depend upon your individual needs and objectives. Principles of Preserving Wealth How federal estate taxes work, plus estate management documents and tactics.