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. Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Lifetime of Earnings Estimate how much you have the potential to earn during your working years. 4 Steps to Protecting a Child with Disabilities Planning for a child with special needs can be complicated, confusing, and even overwhelming. The 12 Steps to Living Confidently: How to Protect Yourself Protection. We’re obsessed with it these days.