Bruce Bartlett (Forbes), The Misinformed Tea Party Movement: For an Antitax Group, They Don't Know Much About Taxes:

On March 16 the Tea Party crowd showed up for yet another demonstration on Capitol Hill in Washington. Curious about the factual knowledge these people have regarding the issues they are protesting, my friend David Frum enlisted some interns to interview as many Tea Partyers as possible on a couple of basic questions. They got 57 responses–a pretty good-sized sample from a crowd that numbered between 300 and 500 people. (Survey results are here.) …

[N]o matter how one slices the data, the Tea Party crowd appears to believe that federal taxes are very considerably higher than they actually are, whether referring to total taxes as a share of GDP or in terms of the taxes paid by a typical family.

Tea Partyers also seem to have a very distorted view of the direction of federal taxes. They were asked whether they are higher, lower or the same as when Barack Obama was inaugurated last year. More than two-thirds thought that taxes are higher today, and only 4% thought they were lower; the rest said they are the same.

As noted earlier, federal taxes are very considerably lower by every measure since Obama became president. And given the economic circumstances, it's hard to imagine that a tax increase would have been enacted last year. …

Whatever the future of the Tea Party movement in American politics, it's a bad idea for so many participants to operate on the basis of false notions about the burden of federal taxation. It only takes a little bit of time to look at one's tax return to see what one is actually paying the Treasury, calculate the percentage of one's income that goes to taxes, and compare it with what was paid last year and the year before. People may then discover that their anger is misplaced and channel it into areas where it is more likely to bring about positive change.

See also Linda M. Beale (Wayne State), Why Taxes Are Important