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 Can I Refinance My Mortgage? This calculator can help determine whether it makes sense to refinance your mortgage. Retirement Plan Detectives A couple become Retirement Plan Detectives, searching records from old employers. Why Regular Rebalancing Makes Sense Without your knowing, your investment portfolio could be off-kilter.