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 How Will Working Affect Social Security Benefits? Knowing the rules may help you decide when to start benefits. Tax Freedom Day Assess how many days you'll work to pay your federal tax liability. Building a Solid Financial Foundation Sustain financial well-being or create wealth through these actions.