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 This Is Your Brain on Retirement The brain is a powerful thing, but when it comes to preparing for something that is far in the distance like retirement, it can easily be led astray — and result in some big retirement planning mistakes. How to Appeal Your Property Taxes For homeowners who think their property taxes are too high, there are ways to appeal. Put It in a Letter A letter of instruction provides additional and more personal information regarding your estate.