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 Recognizing the Challenges of Custodial Care The goal for most, when planning for retirement, is to ensure financial independence and never run out of money. Red Flags for Tax Auditors Here are six flags that may make your tax return prime for an IRS audit. Important Birthdays Over 50 Here's a look at several birthdays and “half-birthdays” that have implications regarding your retirement income.