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 Where Will Your Retirement Money Come From? Retirement income may come from a variety of sources. Here's an overview of the six main sources. Financial Fixes: 5 Tips for Handling Inheritance Remember that family reunion you wanted to forget? 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.