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 Question Thank you! Oops! Related Content 3 Estate Challenges for Blended Families This article will help your clients with blended families think and prepare their estate strategy. 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. My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates.