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. Related Content Lifetime of Earnings Estimate how much you have the potential to earn during your working years. 16 Wall Street Cliches in 60 Seconds Pundits say a lot of things about the markets. Let's see if you can keep up. Estimating the Cost of College This worksheet can help you estimate the costs of a four-year college program.