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 Managing an Inheritance A windfall from a loved one can be both rewarding and complicated. Understanding the Alternate Valuation Date Executors can value the estate on the date of death, or on its six-month anniversary —the “Alternate Valuation Date." When Heirs are Imperfect The money problems or bad lifestyle habits of adult children could lead to the squandering of any inheritance they receive.