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 Silver Sneakers 101 Medicare’s popular program, offering free gym membership and health education. Choices for Your 401(k) at a Former Employer Individuals have three basic choices with the 401(k) account they accrued at a previous employer. Surprise! You’ve Got Money! Here’s a quick guide to checking to see if you have unclaimed money.