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 Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. Volunteering in Retirement For many, retirement includes contributing their time and talents to an organization in need. Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax.