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 Principles of Preserving Wealth How federal estate taxes work, plus estate management documents and tactics. Suddenly Single: 3 Steps to Take Now Have you found yourself suddenly single? Here are 3 steps to take right now. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates.