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 | Related Content Safeguard Your Digital Estate If you died, what would happen to your email archives, social profiles and online accounts? Why You Need an Estate Strategy Do you have an estate strategy? You should. What Is My Life Expectancy? Estimate how many years you may need retirement assets or how long to provide income to a surviving spouse or children.