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 Estate Management 101 A will may be only one of the documents you need—and one factor to consider—when it comes to managing your estate. 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? Managing Your Lifestyle Using smart management to get more of what you want and free up assets to invest.