One financial term I think those nearing retirement should better understand is longevity risk. Longevity risk deals with the risk of outliving your savings. People are living longer, and this means the cost of retirement keeps increasing.
We can’t know how long we’ll live. But what we can do is become better educated on life expectancies. Life expectancy is the average number of years an individual is expected to survive at a given age. For example, the life expectancy today for a newborn is approximately 82 years.* The life expectancy today for a 65-year-old is approximately 20 years (i.e., living until age 85). The Department of Work and Pensions estimates 17% of Britons alive today will live to be 100.**
So What is The Right Retirement Planning Period?
First, the expected length of your retirement should be longer than your life expectancy, since you want a cushion should you live longer than average. For a 65-year-old today in average health, I think the minimum period should be 25 years. For a couple, both age 65 and in average health, I think the minimum period should be 30 years.
However, these are for retirees today. Individuals or couples who are younger (e.g., age 25) could easily need to add five or more years to projections because by the time these younger people eventually retire, life expectancies will be even higher - something actuaries call expected improvement in mortality rates.
For those who believe they’ll live very long—past age 95—or for those who don’t want to have to worry about longevity risk, there is a deferred income annuity, also known as longevity insurance. A deferred annuity offers guaranteed income that kicks in later in retirement at a predetermined age. The longer the period from when you purchase the deferred annuity until the income starts, the higher the pay-out.
David Blanchett is the head of retirement research for Morningstar Investment Management. A version of this blog was originally posted in the Wall Street Journal.
*World Bank data: UK life expectancy for a newborn male is 80; UK life expectancy for a newborn female is 84
** http://www.metlife.co.uk/uk/Documents/White_Papers/longevity-insurance.pdf