Revenues come from these sources

Table 1.  FY 2010 Estimated Federal Taxes

 

Source

Amount (Billions)

Percentage

Individual Income Taxes

 

1,051 

45.0%

Payroll Taxes (Social Security, Medicare, Unemployment insurance, and other retirement)

940

40.3%

Corporate Taxes

 

179

7.7%

Miscellaneous*

 

143

6.1%

Estate and Gift Taxes

 

20

.9%

Total Collected

2,333

100%

From: http://www.whitehouse.gov/omb/budget/fy2010/assets/summary.pdf, Table S-4

 *   The government collects customs duties, excise taxes (taxes applied to various products, including alcohol, tobacco, transportation fuels and telephone services), and other miscellaneous revenues--e.g., Federal Reserve earnings, fines, penalties, and forfeitures.