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 Investment Strategies for Retirement Investment tools and strategies that can enable you to pursue your retirement goals. Estate Management Checklist Is your estate in order? This short quiz may help you assess your overall strategy. 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?