Tax Data, Charts, and Maps
Income Taxes
The U.S. federal individual income tax was enacted in 1913 following the passage of the 16th Amendment. Today, most states and a small number of local and municipal governments also collect income taxes. Income taxes today provide the largest single source of federal revenues, some $1 trillion in 2006. Click here for the Tax Foundation's latest summary of federal individual income tax data.
Additional questions about the income tax? Contact us at (202) 464-6200.
Tax Data from The Tax Foundation
- State Business Tax Climate Index--Individual Income Tax Index, 2010 , September 22, 2009
- Summary of Latest Federal Individual Income Tax Data, 1980 - 2007, July 30, 2009
- Graph: Tax Burden of Top 1% Now Exceeds That of Bottom 95%, July 29, 2009
- State Individual Income Tax Rates, 2000-2009, July 1, 2009
- State and Local Individual Income Tax Collections Per Capita and Per Household, Fiscal Year 2004-2006 , February 5, 2009
- Income Per Capita by State, Fiscal Year 2008 , February 5, 2009
- State Individual Income Tax Collections Per Capita, Fiscal Year 2007 , February 5, 2009
- U.S. Federal Individual Income Tax Rates History, 1913-2009, January 2, 2009
- Summary of Federal Individual Income Tax Data by State, 2006 , August 1, 2008
- Local Wage, Income, and Occupational Privilege Taxes, 2008, July 15, 2008
- Number of Paying and Non-Paying Tax Returns by Type of Return, 2005, June 2, 2008
- Links to State Individual Income Tax Forms, February 15, 2008
- Impact of the Alternative Minimum Tax (AMT) by County, 2005, September 24, 2007
- Impact of the Alternative Minimum Tax (AMT) by Major City Areas, 2005 , September 24, 2007
- Impact of the Alternative Minimum Tax (AMT) by Congressional District, 2005 , September 24, 2007
- Itemization Rates by State, 2005, July 24, 2007
- Impact of the Alternative Minimum Tax (AMT) by State, 2005 , July 18, 2007
- Dividends and Capital Gains Income Compared to Other Income by State, 2005, July 16, 2007
- Impact of Bush Tax Cuts on AMT and Non-AMT Returns for 2007 Under Current Law, May 31, 2007
- Fraction of Each Quintile's Total Tax Burden Accounted for by Each Type of Tax, Calendar Year 2004 , April 1, 2007
- Average Dollar Tax Burdens by Type of Federal Tax, Per Household, Calendar Year 2004 , April 1, 2007
- History of Alternative Minimum Tax (AMT) Returns and Liabilities, 1970-2005, February 22, 2007
- Federal Individual Income Tax Burden by County, 2004, January 17, 2007
- Federal Individual Income Tax Burden by Major City Area, 2004, January 17, 2007
- Federal Individual Income Tax Burden by Congressional District, 2004, January 17, 2007
- Taxable Dividend Income by State, 2000, 2003, December 7, 2005
- 1913 Internal Revenue Service 1040 Form, January 1, 2005
- Dates of Adoption of Major State Taxes, January 1, 2005
Charts
- How the Pelosi and Baucus Health Care Reform Bills Are Financed, October 30, 2009
Maps
- Map: Top Effective Marginal Tax Rates Under House Health Care Plan, November 16, 2009