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 Question Thank you! Oops! Related Content Be My Beneficiary Financial planning for couples. 9 Ways to Earn Passive Income There are many sources of passive income and this article explores several Social Security: By the Numbers Here are five facts about Social Security that might surprise you.