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 Social Security: Maximizing Benefits There are other ways to maximize Social Security benefits, in addition to waiting to claim them. Choices for Your 401(k) at a Former Employer Individuals have three basic choices with the 401(k) account they accrued at a previous employer. Is a Variable Annuity Right for Me? Pundits go on and on about how “terrible” or “wonderful” annuities are, but they never talk about whether annuities are right.