Tuning Your Social Security Benefit When should you take your Social Security benefit? Share | Related Content 18 Years Worth of Days The average retirement lasts for 18 years. Are you prepared to fill that many days? Is a Variable Annuity Right for Me? Pundits go on and on about how “terrible” or “wonderful” annuities are, but they never talk about whether annuities are right My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates.