Yep. I graduated college 40 years ago, and turn 62 this year. and my income now is higher than ever, but not THAT much higher than, say, 5 years ago. I believe SSA also includes some inflation adjustments in the calculations - e.g.50,000 a year 20 years ago is worth more in the equation than 50,000 a year right now. I’m sure my income this year will replace my income from my early earning years even with that factored in - I’m earning roughly 6x what I did when I graduated, and there have been a couple years where I took some unpaid leave.
My in-laws made the decision to retire 20 years ago and begin collection Social Security early - MIL was 62 and FIL was 65. While their income was never terribly high (and I think MIL collects based on FIL’s earnings). an extra year or two would have paid for itself by now. But they were (and are) both quite obese, FIL has numerous health problems, and it’s a miracle he’s still alive. MIL made a pretty good attempt at dying early, also. In their situation, nobody would have guessed they’d live long enough that delaying the payout would have worked for them.
Both my parents died at age 75 - so that’s my mental stopping point. Admittedly, it’s unlikely I’d go from the same cause as either of them, never having smoked (mom had lung cancer) and being unequipped with a prostate… but I have my own health issues. My grandparents died at ages ranging from mid 60s to nearly 90 - averaging on the lower end of that. Again, I am not at risk of either of the truly early death causes (not alcoholic, no ALS). Still, I’m trying to plan for the longest term.
For fun, I looked at my own SSA account just now. Using their estimates - which are based on my current earnings rate - my payout at age 70 is 1.78 times my payout at age 62, and it is 1.25 times the amount at my full retirement age. I did some basic arithmetic - simply added up the monthly benefit I’d get with each approach - and the full-retirement-age total doesn’t exceed the “retire at 62” total until I’m 78 years old. The retire-at-70 total beats the retire-at-62 even later - 79 years and 11 months. It beats the retire-at-full-retirement-age figure when I turn 82. Taken by itself, that’s a pretty clear argument for retiring and taking Social Security as early as possible.
BUT, that does not account for other costs. If I want to (and am able to) work until I’m 70, that’s likely the financial winner - I’m earning, which will bump up my benefit a bit more with every year I work, and I am presumably continuing to save in my 401(k) etc. So I might be adding another 100K or more to my nest egg, versus what I have saved right now - and I won’t be dipping into that nest egg either. I’ll have more equity in the house, i.e. less retirement housing expenses. Healthcare costs between retiring at 62, and being Medicare-eligible at 65, could take a huge chunk of that monthly income.
On the other hand, I’m sick of working and if I hold out until I turn 70, I have less time to enjoy my own savings. Yes, I’d leave more behind (and with two special needs kids, that’s a real concern).
So: the TL/DR version of that is that the book’s premise is plausible from an arithmetic standpoint, but does not touch on nearly enough of the factors you’d need to look at.
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