Originally Posted by ats5g
This may have been posted in another conversation, but has anyone run the numbers, through Firecalc for example to see if delaying SS to late 60's or 70's improves portfolio survivability?
Any income stream injected into a firecalc ER plan helps survivability immensely by reducing withdrawals dollar for dollar. ESRBobs book explores this in great detail, although largely looking at using part time work and other income sources/expense offsets instead of SS income.
It depends on how "old" you are when you do the firecalc run.
If you're in your 40's or 50's, Firecalc indicates that taking SS early causes enough beneficial offset for you to take a higher withdrawal rate starting from your current age, "knowing" you have an income stream coming along that will help some of the runs from going below zero.
If you wait and do the run/decision right at 60-62, the appearance of the income streams is so close that the larger, slightly later one produces better numbers, especially for people with very small portfolios.
So I guess the answer to your question is "it depends".