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 Grantor Retained Annuity Trusts (GRATs) Explaining Grantor Retained Annuity Trusts (GRATs) and their benefit to estate strategy. The Basics of Medicare Learn all about Medicare basics in this informative and insightful article. Why do Renters Have to Save More? How much more would retirement cost if you owned your home rather than rented? It could actually be several times less.