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 Do You Feel Lucky? Recent changes in estate tax laws could affect the strategy you have in place. A Living Trust Primer Living trusts are popular, but their appropriateness will depend upon your individual needs and objectives. Principles of Preserving Wealth How federal estate taxes work, plus estate management documents and tactics.