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 Tax-Advantaged Retirement Planning Reduce your tax liability in retirement. Understanding Extended Care Understanding the types of extended care services—and what those services could cost—may be critical. Layers of Protection Take these five steps to protect your financial well-being before making any other changes.