Now, I’m about to disagree with myself.
I WAS WRONG!
Of course, this is using the .gov figures. Total expense of SS was $877 billion and total benefits paid was $707 billion while putting $2.8 billion into the “trust fund”.
That’s about a 20% overhead cost.
Of course, the SSA claims less than 1% “administrative” costs.
So, the .gov is off by a factor of 20 while I missed by a factor of 3.
Source: http://www.ssa.gov/oact/STATS/table4a5.html
This gives the total payouts of $706.821 Billion.
Source: http://www.ssa.cov/oact/ProgData/fyOps.html
This puts the total inputs at $878 Billion and $2.8 Billion to the fund in 2014.
I do not know if this includes all employee benefit expenses, insurance, facility rent/amortization.