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 Four Tips for Getting the Most From Your Life's Work Some things to consider when contemplating selling your business 18 Years’ Worth of Days The average retirement lasts for 18 years, with many lasting even longer. Will you fill your post-retirement days with purpose? Take the Stage: Commitment and the Money Conversation Congratulations, you’re ready to commit. Perhaps you now share keys to the same front door or there’s a ring in your future.