The Power of Tax-Deferred Growth Why are 401(k) plans, annuities, and IRAs so popular? Share | Related Content Women and Retirement Women must be ready to spend, on average, more years in retirement than men. What Is an Annuity? Annuities are versatile tools that can help you save for retirement and generate income in retirement. Retirement Plan Distributions There are a number of ways to withdraw money from a qualified retirement plan.