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 A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals. How Will Working Affect Social Security Benefits? Knowing the rules may help you decide when to start benefits. Problems with Probate Probate can be a completely public process, or it can be managed to include as little information as possible.