Dear Liz: I was born in 1960 and plan to retire with reduced Social Security benefits at 62. I’ve read in many places that taking reduced benefits isn’t a good idea because you are locked into a lower amount for life. While this is true on a monthly basis, what about on a cumulative basis? I have figured out that on a cumulative basis I can collect to about the age of 78 and be even with collecting full benefits at 67, and this doesn’t include cost-of-living increases that would add a few more years before full benefits exceed reduced benefits on a cumulative basis.

This means I would be collecting my benefits while I am younger and healthier so I can enjoy it as opposed to delaying it on the presumption I will live well into my 80s when who knows what the future holds. Social Security will not be my main source of income as I will have a sizable amount saved by then. Would taking reduced benefits make sense for me, or am I missing something?

 Answer: You’re right that the break-even period — the point where waiting for full benefits gets you more than taking benefits early — is typically in your late 70s. A male at age 62 is expected to live 19 more years on average, while a woman the same age is expected to live 22 more years. If you’re in poor health and don’t expect to live long after you retire, however, that can tip the scales toward taking benefits early.

Wanting to claim your benefit early, while you’re “young enough to enjoy it,” is certainly understandable. But you might also want to look at Social Security as a kind of longevity insurance. If you live into your 80s and beyond, you may well exhaust your savings and wind up relying more than you think on your Social Security check. In that case, you might appreciate the larger benefit you’d get from waiting until your full retirement age.

AARP has a free Social Security benefits calculator that can help you determine the best time to claim benefits.