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 Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable. Avoiding Cognitive Decline Try these activities to keep your brain sharp. Financial Hacks for Millennials: Don’t Get Burnt With FIRE Financial Independence, Retire Early (FIRE), also known as radical savings, encourages aggressive saving to retire by age 40.