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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.

A table in the Fiscal Year 2023 IRS Data Book (Publication 55B) has been updated: Table 17?¡ª The cells containing the total number of Corporations returns filed for Tax Years 2014¨C2020 were revised due to a summation error. The underlying data comprising the total were correct. The corrected totals are now included in the revised table.

The Statistics of Income (SOI) Bulletin is issued quarterly by the Statistics of Income Division of the Internal Revenue Service. The 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. Selected historical and other data tables, previously published in the spring issue of the Bulletin are now only available on SOI¡¯s pages of the IRS Website.

Look here for the 2001 - 2003 IRS Data Books (Publications 55B), with links to the 1995 to 2000 IRS Data Books. The tables shown in these publications contain statistics for IRS collections and refunds, as well as number of returns. There's also information on examination activities, taxpayer assistance, chief counsel, appeals, criminal investigation, and more.

These tables present information from the population of all Forms 1040 processed by the IRS on or before week 30 of the calendar year. Returns filed primarily reflect income earned in the respective Filing Year, but exclude taxpayers who requested a 6-month filing extension by filing Form 4868, Application for Automatic Extension of Time To File U.S. Individual Income Tax Return.

Gift Tax Statistics

Metadata pilot page - Data source and limitations

Tax-Exempt Bond Statistics - Presents data compiled from Forms 8038-G (Governmental bonds) and 8038 (tax-exempt private activity bonds) filed with the IRS. Data include the entire issue price of bonds, classified by term of issue, types of property financed, and state.

SOI Tax Stats - Estate Tax Filing Year Tables

The gross tax gap is the difference between true tax liability for a given tax year and the amount that is paid on time. It is comprised of the nonfiling gap, the underreporting gap, and the underpayment (or remittance) gap. The net tax gap is the portion of the gross tax gap that will never be recovered through enforcement or other late payments.