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 Term vs. Permanent Life Insurance When considering life insurance, it's important to understand your options. When Do You Need a Will? When do you need a will? The answer is easy: Right Now. Mortgages in Retirement Explore the benefits and drawbacks to paying off your mortgage prior to retirement with this article.