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 Question Thank you! Oops! Related Content Rightsizing for Retirement What does your home really cost? Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates. How Solid is Your Offensive Line? As quarterback of your life, here’s a fun way to think about protecting your financial future.