Key Takeaways Morningstar’s new analysis suggests a 3.9% starting withdrawal rate gives retirees a high probability of not running out of money during a 30-year retirement. Delaying Social Security until age 70 can meaningfully boost lifetime retirement income, but it may require temporary spending cuts or bridge strategies. You've done the work of saving for retirement, but now that you've reached your golden years, do you have a plan for how you'll spend down your nest egg? For future retirees, M ...