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 Content Understanding Marginal Income Tax Brackets An inside look at how marginal income tax brackets work. Bridging the Confidence Gap In the world of finance, the effects of the "confidence gap" can be especially apparent. 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.