IRS Statistics of Income Division

Note: The Internal Revenue Service’s Statistics of Income Division is now accepting applications for the 2026 Joint Statistical Research Program. Visit the Joint Statistical Research Program website for more details and instructions.

The mission of the Internal Revenue Service (IRS) Statistics of Income (SOI) is to formulate and execute the statistical policies, practices, and programs of the Internal Revenue Service. We collect, analyze, safeguard, and disseminate information on Federal taxation in support of tax administration, economic policy development, and financial analysis; we serve a broad range of users in the IRS, the Federal government, the public, and the nonprofit sectors; we provide statistical support within the Service for a broad range of program evaluation and measurement analytics; and we lead efforts to modernize Federal statistical programs and practices through engagement with the Federal statistical community. 

The goals of the SOI Joint Statistical Research Program are to provide new understandings of taxpayer behavior that aid in administering the U.S. tax system and new insights and understandings of the ways that existing tax policies affect individuals, businesses, and the economy. To that end, IRS researchers are matched with qualified researchers outside the Federal Government with the expectation that the projects will lead to developing new datasets useful for future tax administration research, tabulations that can be released to the public, and published articles that discuss the research results, versions of which will be released as working papers on Tax Stats. 

For more information on SOI’s products and programs, please visit irs.gov/statistics or email our Statistical Information Services Office at SIS@irs.gov.