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 Put It in a Letter A letter of instruction provides additional and more personal information regarding your estate. The Pros and Cons of Banking Your Money The Pros and Cons of Banking Your Money Pay Yourself First It sounds simple, but paying yourself first can really pay off.