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 Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. Test Your Life Insurance Knowledge How much do you know about one of the most important tools you have to help protect your and your family’s financial future? 9 Facts About Retirement Regardless of how you approach retirement, there are some things about it that might surprise you.