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 Tax Freedom Day Assess how many days you'll work to pay your federal tax liability. Conquering Retirement Challenges for Women Looking ahead can help you conquer these unique obstacles. From Boats to Brokers From the Dutch East India Company to Wall Street, the stock market has a long and storied history.