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 Retirement Is a Beginning Key questions to answer when you are considering retirement. The Facts About Income Tax Millions faithfully file their 1040 forms each April. But some things about federal income taxes may surprise you. What Is My Current Net Worth? Use this calculator to estimate your net worth by adding up your assets and subtracting your liabilities.