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 Question Thank you! Oops! Related Content The Three Keys to a Great Password Have fun and learn how to craft the perfect password with the help of this highly engaging infographic. Bi-Weekly Payments This calculator estimates the savings from paying a mortgage bi-weekly instead of monthly. Surprise! You’ve Got Money! Here’s a quick guide to checking to see if you have unclaimed money.