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 Net Unrealized Appreciation (NUA) Explained Have you considered the special tax treatment on company stock held in a 401(k) plan? Assess Life Insurance Needs How to help determine life insurance needs to provide for your family after you pass away. Insurance Needs Assessment: When You're Young and Single Even if you’re young and single, you should still consider protecting yourself.