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 The Half Million Dollar Baby The true cost of raising a child may be far more than you expect. Three Key Questions to Answer Before Taking Social Security When to start? Should I continue to work? How can I maximize my benefit? When Special Care Is Needed: The Special Needs Trust A special needs trust helps care for a special needs child when you’re gone.