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. Related Content Personal Finance Calendar Use this handy calendar to remember the year’s most important financial dates. The Average American Budget Learn about the average American budget in this fun and interactive piece. Bi-Weekly Payments This calculator estimates the savings from paying a mortgage bi-weekly instead of monthly.