Last Updated Mar 17, 2011 4:05 PM EDT
Investors approaching retirement often ask whether they should work a few more years to boost their Social Security benefits. While it really depends on the individual and his or her work history, the answer is generally, "No."
A paper published by the Social Security Administration calculated the marginal returns on Social Security taxes for workers nearing retirement. Basically, the study researched how much more in benefits a worker would receive for each additional dollar of Social Security taxes paid. The study found that on average, the marginal returns workers received are low. In particular, the study found that different subgroups of workers received varying degrees of benefits.
First, it's important to understand how Social Security benefits are calculated in order to understand how a few more years of work can affect benefits. You need at least 10 years of work history to qualify for benefits, which are then based on your highest 35 years of earnings. For those with more than 35 years of work history, only the top 35 years are considered. For those with less, zeroes are averaged in to the formula.
The subgroup of workers that benefited the least from additional work years included:
- Workers with 35 years or more of work history
- Workers who wouldn't have 10 years of work history to qualify for benefits
- Workers who rely primarily on dependent benefits (spousal, survivor)
- Workers with fewer than 35 years of earnings
- Workers with low lifetime earnings
- Workers with almost 10 years of work history
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