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 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. Volunteering in Retirement For many, retirement includes contributing their time and talents to an organization in need. Retirement Plan Choices for Small Businesses Retirement choices can be intimidating. Picking the right strategy.