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 Navigating Retirement Pitfalls Why are they made again and again? Making sense of these errors in judgement. Finding the Balance The sandwich generation faces unique challenges. For many, meeting needs is a matter of finding a balance. You May Need to Make Estimated Tax Payments If… Have income that isn’t subject to tax withholding? Or insufficient withholdings? You may have to pay estimated taxes.