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 The History of Currency Currency has been around for a long time. Here’s a quick history lesson. A Penny Saved is Two Pennies Earned Here are some simple and inexpensive energy-saving tips that may help you save money. How Stocks Work Understanding how a stock works is key to understanding your investments.