UPDATE 3/17/2010: I added more information about marginal tax rates by graphing the combined marginal tax rate line in the last graph.
The first of series of infographics I am designing to illustrate the actual federal tax rate applied to different salaries. I want to show how the marginal income tax rates + social security and medicare taxes combine together for a single taxpayer up to $400,000. (This graphic does not including payroll tax or any taxes on capital gains. Those taxes will be investigated later.)

A little background about this data. If you take a look at your W-2 form you can see that there are 3 different taxes applied to salaries and wages:

The income tax graph is created from the 2009 tax schedule for a single taxpayer:

which you can find from the IRS Tax Tables here while the information about the social security and medicare tax can be found here.
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Free Tax Filing, Efile Taxes, Income Tax Returns – TurboTax.com
Another graphic from my client work with TurboTax. I did not create the finished design above. I did performed some behind the scenes research and sketching for this infographic that you can see in this version below:

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Day 28 of 28 Days of Tax Data
From Franklin Delano Roosevelt’s Tax return from 1913 (the first year of income tax was assessed in the United States)







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Day 27 of 28 Days of Tax Data
From Australia’s future tax system
Graph show the % of GDP collected in taxes.

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Day 26 of 28 Days of Tax Data
From Australia’s future tax system
Transfers and taxes by level of income for a single income family, two children aged 3 and 8 (2008?09) The area on the top half of the graph is the money transfered to the family while the bottom half shows the taxes paid by the family.

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Day 25 of 28 Days of Tax Data
From Australia’s future tax system
If a country is above the line then its income is greater than its spending. Below the line then its spending is greater than its income.
Size of government — OECD 2007

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