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 Encore Careers: Push Your Boundaries Ready for retirement? Find out why many are considering encore careers and push your boundaries into something more, here. Conquering Retirement Challenges for Women Looking ahead can help you conquer these unique obstacles. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates.