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. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Do You Owe The AMT? If you want to avoid potential surprises at tax time, it may make sense to know where you stand when it comes to the AMT. Estimate Your RMD Help determine the required minimum distribution from an IRA or other qualified retirement plan. Choices for Your 401(k) at a Former Employer Individuals have three basic choices with the 401(k) account they accrued at a previous employer.