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 Saving for College 101 Here’s a crash course on saving for college. Put It in a Letter A letter of instruction provides additional and more personal information regarding your estate. Essential Steps to Avoid and Recover From Identity Theft Identity theft is becoming more common every day. Here’s what to do if it happens to you.