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 Safeguard Your Digital Estate If you died, what would happen to your email archives, social profiles and online accounts? Put It in a Letter A letter of instruction provides additional and more personal information regarding your estate. Principles of Preserving Wealth How federal estate taxes work, plus estate management documents and tactics.