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? Address Thank you! Oops! Related Contents 18 Years Worth of Days The average retirement lasts for 18 years. Are you prepared to fill that many days? The History of Retirement Do you know where the idea of “retirement” comes from? Retirement Plan Distributions There are a number of ways to withdraw money from a qualified retirement plan.