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 Message Thank you! Oops! Related Content The Importance of Business Valuation You know your company inside and out. But do you know how much it’s actually worth on the open market? Life and Death of a Twenty Dollar Bill How long does a $20 bill last? The Importance of Beneficiary Designations Beneficiary designations allow assets to pass directly to whomever you designate thus by-passing the costs and time involved with the probate process.