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 Retirement Road Trip Discover how to build a retirement plan that guarantees income no matter how long you live. 3 Ways to Save Without Tax Deferral Tax deferral versus tax-efficient vehicles like Roth 4019k)s, Roth IRAs and Life Insurance. Retirement Planning With Your Special Needs Child in Mind Having a special needs child adds another layer of complexity to retirement planning. A special needs trust may help.