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 Gap Insurance for Leased Cars If you’re thinking of leasing a new car, then you shouldn’t forget about gap insurance. The Cost of Procrastination Procrastination can be costly. When you get a late start, it may be difficult to make up for lost time. 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.