The Power of Tax-Deferred Growth Why are 401(k) plans, annuities, and IRAs so popular? Share | Related Content Social Security: By the Numbers Here are five facts about Social Security that might surprise you. What Is a Stretch IRA? If you have a traditional IRA, you may have the opportunity to extend its tax-deferred status across multiple generations. Retirement Plan Distributions There are a number of ways to withdraw money from a qualified retirement plan.