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 Income Taxes Work A quick look at how federal income taxes work. Succeeding at Business Succession There are a number of reasons for business owners to consider a business succession plan sooner rather than later. Retirement Traps to Avoid Beware of these traps that could upend your retirement.