From New York Times
The Effective Federal Tax Rate looks at the % of income paid to the Federal Government at different incomes groups. In the graph below you can see how the percentage has changed over the last 30 years:

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Day 7 of 28 Days of Tax Data
From Heritage Foundation
They have graphed the top tax rate for corporations with amount of corporate taxes collected as percent of GDP (since 1960)

From Tax Policy Center
Here is the corporate income tax as the percent of Federal Taxes collected (since 1950)

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Day 6 of 28 Days of Tax Data
From USA Today
There is a lot going on in this interactive graphic:
- The main graph is plotting a single salary (in gray) but it is shown adjusted for inflation from 1940 to 2008.
- The colored areas represent the amount of tax appropriated each year to different parts of the federal budget.
- The smaller graph shows the percent of income paid in federal taxes from 1940 to 2008
I have taken screenshots for three different incomes for comparison: $10,000 $100,000 and $1,000,000. You will notice that the percentage of the tax collected for Social Security is greater for the $10,000 income than for the two higher incomes. This is because the % of taxes collected from the Social Security tax is highest on the $10,000 income.
$10,000

$100,000

$1,000,000

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Day 5 of 28 Days of Tax Data
From Mint
There is a lot going on in this graphic. First, keep in mind that a “Tax unit” is either a single person, two people married filling jointly, or head of household (for example a single person with dependent child).
The gray dashed bars are the tax units that don’t owe any taxes to the Federal Government. What struck me was that these people can be found at all income levels.

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Day 4 of 28 Days of Tax Data.
I always enjoy a graph of the marginal tax rate (i.e. the tax rate applied to the income of the very wealthy by the Federal Government). But I don’t know why they needed a 3-D line? From Starboard Broadside

Second graph is of the same data but not as pretty. From Balloon Juice

Here is one I created in 2007.

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Day 3 of “28 days of Tax Data”
Update Here is a graph with 2007 data from (Thanks to Jerome Cukie for the pointer)

Unfortunately, this is only from 1955-2003 but I thought it was an interesting graph especially the comparison between Average Taxes on Income and Profits.
- Light green is OECD Average Taxes on Income and Profits
- Dark green is United States Average Taxes on Income and Profits

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