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Migration data 2021-2022 data files are available for download in Comma Separated Values files (.csv file extension)¡ªData items are separated by commas, where each new line represents a new row, and by Excel files by State (.xlsx file extension).

Affordable Care Act of 2010: Number of Returns, Tax Collections, Tax Credits, Grants, and Fees for Selected Non-Exchange Provisions

Frequently asked questions and answers about Enrolled Actuaries

SOI Tax Stats - SOI Bulletin: Fall 2016

SOI Tax Stats - Fiduciary Income and Deductions, by State and Entity Type, Filing Year 2013

SOI Tax Stats - 2008 Controlled Foreign Corporations Metadata

Individual tax statistics data by marital/filing status

The Statistics of Income Bulletin is issued quarterly by the Statistics of Income Division of the Internal Revenue Service. This report provides the earliest published annual financial statistics obtained from the various types of tax and information returns filed, as well as information from periodic or special analytical studies of particular interest to students of the U.S. tax system, tax policymakers, and tax administrators.

Office hours documents.

SOI Tax Stats - Individual Income Tax Statistics - 2014 ZIP Code Data (SOI)