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 Managing the Risk of Outliving Your Money Steps to help you sustain and grow your retirement savings. Suddenly Single: 3 Steps to Take Now Have you found yourself suddenly single? Here are 3 steps to take right now. 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.