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If you’ve spent any time planning for retirement, you probably know the basics of Social Security. Most people can start claiming benefits at age 62, reaching full retirement age (FRA) between 66 and 67, depending on their birth year, and can delay benefits until 70 (1).
The longer you wait, the larger your monthly payment — delaying past your FRA can increase your benefit by up to 8% per year, according to the Social Security Administration (SSA) (2).
That sounds like a great deal on paper. But in practice, the decision is more complex and, for some retirees, delaying could end up costing money.
Here’s why the simple math behind delaying benefits doesn’t always add up.
The problem with the “basic math” behind delaying Social Security is that it often overlooks longevity risk. While it’s true that waiting longer increases your benefit, your total lifetime payout could be lower if you don’t live as long as expected.
For example, if you wait until age 70 to start collecting benefits but pass away at 72, you’ve only received two years of payments. Claiming earlier — even at a reduced rate — could have resulted in a larger total payout over your lifetime.
If you pass away before 70, you effectively receive nothing from a system you’ve spent decades paying into.
Moreover, the fate of the program is also in question. Insufficient funding could see the program exhausting its trust funds by 2032, which will result in a 23% reduction in benefits for retirees and those with a disability (3). With this in mind, many Americans who are nearing retirement are making some complicated calculations about how much they may receive and how long they expect to live.
To be fair, estimating longevity is inherently uncertain. According to the Peterson-KFF Health System Tracker, average life expectancy in the U.S. is approximately 78.4 years — but individual outcomes vary widely (4). Many people live into their 80s and 90s, while others don’t reach average life expectancy.