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. Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Surprises Making the most of surprises is a great reason to work with us. Estimating the Cost of College This worksheet can help you estimate the costs of a four-year college program. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates.