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 Mortgages in Retirement Explore the benefits and drawbacks to paying off your mortgage prior to retirement with this article. Social Security: Five Facts You Need to Know Here are five facts about Social Security that are important to keep in mind. Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one.