Retiring the 4% Rule A portfolio created with your long-term objectives in mind is crucial as you pursue your dream retirement. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content What's My Potential Estate Tax? This calculator helps estimate your federal estate tax liability. Understanding Marginal Income Tax Brackets An inside look at how marginal income tax brackets work. Caring for Aging Parents As our nation ages, many Americans are turning their attention to caring for aging parents.