Interesting

The tax foundation releases an interesting statistic showing that the rich in the U.S. pay the largest share of personal and payroll taxes of any OECD country. I don't think it includes VAT, which would likely increase the progressiveness of the U.S. system since it has none.

This sentence is also interesting:

Interestingly, countries with top personal income tax rates that are higher than in the U.S., such as Germany, France, or Sweden, have ratios that are closer to 1 to 1. Meaning, the share of the tax burden paid by the richest decile in those countries is roughly equal to their share of the nation's income.

I know this can be shown in the U.S. over time as well - when top marginal tax rates were lower, the highest earning 10% earned a smaller share of overall income. So keep in mind that there seems to be a reverse correlation between the actual average tax rates the rich pay and their share of the overall burden. In other words, they are not actually hurting to pay this large a percentage of overall taxes even if sometimes these comparisons are meant to show how unfair our system is.

h/t Greg Mankiw

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Update:

Matt Yglesias points out that it also doesn't include US regressive taxes - State and Local (he's wrong that it does not include payroll though). And he fails to mention it does not include VAT.

and Karl Smith comments.