Bruce Bartlett: Health Care Costs and the Tax Burden - NYTimes.com: "Last week I showed that total taxes at the federal level — individual and corporate income taxes, payroll taxes and so on — are at a 60-year low as a share of the broadest measure of income, the gross domestic product.
Some readers took issue with my failure to include state and local taxes in the calculation. I have now done that, using data from the Organization for Economic Cooperation and Development, which represents the major developed countries. Among its most important responsibilities is the collection of internationally comparable data on a wide variety of topics, including taxes and health care spending.
The table below shows total taxes, including state and local government taxes, as a share of G.D.P. in 2008, the latest year for which there is complete data. The table makes clear that the United States has very low taxes by international standards."