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 Interested in a Fuel Efficient Car? Estimate how many months it may take to recover the out-of-pocket costs when buying a more efficient vehicle. Taxable vs. Tax-Deferred Savings Use this calculator to compare the future value of investments with different tax consequences. Pay Yourself First It sounds simple, but paying yourself first can really pay off.