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! Want to be Smarter With Your Money? Join our mailing list and get news and info to support your financial goals. First Name Last Name Email Address Thank you! Oops! Related Content When Do You Need a Will? When do you need a will? The answer is easy: Right Now. Estimating Your Estate Taxes Estate tax laws have changed a few times in recent years. Do you know the new rules? Principles of Preserving Wealth How federal estate taxes work, plus estate management documents and tactics.