Bill Bernstein: "...the best "annuity purchase" you can make is to delay beginning Social Security until age 70".
Is there a reference for that quote, and more background?
I would have thought it was calculated to be actuarially equal, so unless you happen to know something the actuarial tables don't (heavy smoker, or family history of living to 120, etc) that it was a crapshoot either way.
It's from "The Investor's Manifesto". I believe you are correct that SS start dates are calculated to be actuarially equal. Bernstein's idea is to delay so you get higher payments when your human capital (ability to earn) is low or non-existent. It's about risk-reduction more than being financially optimal.
On page 145 he says: "This calculates out to a guaranteed real return from waiting of 8 percent per year, which is hard to beat anywhere in the capital markets. Should you "live too long", the bigger monthly check will come in very handy indeed."
social security has not been neutral since folks started living longer . we also still have spousal benefits and adders for the spouse that increase things .
with the odds of a 65 year old couple at 74% of one of them seeing 85 and almost 50% of seeing 90 i would not want to bet against those odds .
social security increases are just that , an increase . it is not a 6% or 8% roi at all . you get about a 6% increase each year from 62 to fra and 8% from fra to 70 .
but it is not a return because you are giving up both checks and spousal benefits as part of the deal of delaying .
actual return is much less . in fact if you are spending down a balanced portfolio in order to delay and giving up checks as well as spousal benefits it can take almost 24 years to see any roi .
delaying does eventually give you not only more money as as well as allow more spending early on if you live long enough .
social security has zero sequence risk so no extra powder has to be kept dry for poor outcomes .
we are delaying because it cuts our need to be dependent on markets more . i go from 3.50% to less than a 2.50% withdrawal rates . the difference will refill what we spent down from our own money early on while delaying .
you do not wait until 70 to spend more . you draw your full budgeted amount day 1 and refill down the road .
if you live to 90 you can see a real return of about 5% which rivals balanced fund returns .
using the fidelity social security optimizing software , it worked out the optimum plan for us for most dollars .
it is an in house tool only not on line .
what it came up with and we are doing is this :
i am 64 and my wife 66 .
she was collecting an early benefit at 62 and stopped it when she hit fra . her benefit now grows 8% a year and when she is 70 she will resume . i will be 68 -10 months when she resumes and i will file restricted application for 1/2 hers .
at 70 i wile file for mine and when i file she gets a spousal adder of 4200.00 added to her benefit .
so we should see , even with my wife's poor work record about 55k a year plus colas by delaying .
we are spending a bit more delaying than we would have filing early since we eventually will refill our savings with a 70% bigger check at 70 then it would have been at 62 .
no one should consider an annuity until they delayed ss . there is no annuity you can buy for the money in checks you give up by delaying that will pay you a cola adjusted amount like ss will .
charts by michael kitces
below is assuming spending down balanced portfolio while delaying