IRS Releases Historical Tax Data, Back to 1863

The IRS's Statistics of Income Division yesterday announced the availability of historical tax data from 1863 through 1999:

In 2009, SOI began digitizing nearly 500 print publications (and more than 50,000 pages) from its library. As a result of this effort, a wealth of historical tax data is now easily accessible in electronic format. ...

The oldest report available here was published in 1863. The Report of the Commissioner of Internal Revenue for 1863 contains information on the collection of revenue by source and district of collection. From 1863 to today, the Annual Report of the Commissioner of Internal Revenue, later called the IRS Data Book, presents an annual overview of IRS operations.

• 1916–1933 SOI Reports
• 1934–1999 Individuals
• 1929–1999 Businesses
• 1863–1999 IRS Data Books
• 1946–1999 Tax-Exempt Organization Reports
• Special Papers

Tax data for 2000 to present remain available on the Tax Stats landing page.