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 Question Thank you! Oops! Related Content It Was the Best of Times, It Was the Worst of Times All about how missing the best market days (or the worst!) might affect your portfolio. Red Flags for Tax Auditors Here are six flags that may make your tax return prime for an IRS audit. Insuring Your Second Home There are unique risks of owning a second home and obtaining the proper coverage may protect you from financial risk.