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 Question Thank you! Oops! Related Content What is the Value of Your Business? Ascertaining the value of your business is important for a variety of reasons. Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. Estimating the Cost of College This worksheet can help you estimate the costs of a four-year college program.