That graph seems to be just incorrect. All three of the links it's supposedly sourced from don't have it on their pages. There is a remark of "own work," so I think a Wikipedian assembled it themself. Given that it frankly contradicts the article it's in, I would assume that it's in error.
And I agree that neither income tax nor income + payroll tax adds up to the 33.5%. I don't know if there are more taxes which need to be considered. 13% total tax seems low.
Employee share of payroll tax is, employer share (which is shown reaching down from the bottom) is not.
> 13% total tax seems low.
Given what I've actually paid with a far above median income, 13% soubds reasonable. Its low as a nominal rate, but there are lots of credits and deductions available, and the before-tax median personal income is well below the cutoff for EITC, which can be a huge one. Heck, a large minority of the population pays zero or negative net income tax.
Comparing comp for two people who are working really hard, doesn't really work when you're comparing to a median income that includes lots of people who don't work or don't really work.
Similarly, comparing median net income (which includes taxation) with a pre-tax windfall doesn't really make sense, either.
Further, we're not adjusting for time value of money...
And, very interestingly and more nuanced, you can take into account how a person changes over time. For example, while I was a grad student, I worked full time and definitely fell under the poverty line. But would you really consider me a poor/destitute person?
About 60% of Americans break into the top 20% of household income at some point in their lives(>$110k/yr). In the same vein, almost 20% of Americans will earn less than the poverty rate at some point in their lives ($24k/yr).
Like I said, I think Americans have many problems, but if there is one thing we are good at it is income (and the consumption that comes with it).
https://www.npr.org/sections/money/2014/05/05/308380342/most...