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. Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content A Meal for All Generations When it comes to generational differences, knowing the facts can be difficult. What's New for Social Security? There have been a number of changes to Social Security that may affect you, especially if you are nearing retirement. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates.