These tables below were originally published in the IRS Data Book, which is IRS Publication 55B, and are complied by various divisions throughout the IRS. The IRS's fiscal year runs from October 1 to September 30.
Enforcing laws
Examination coverage
Examination Coverage: Recommended and Average Recommended Additional Tax After Examination
by Type and Size of Return and Fiscal Year
Returns Examined by Type of Return and Internal Revenue Region, District, and Service Center and Fiscal Year
Additional Tax and Penalties Recommended After Examination
By Tax Class and by Internal Revenue Regions, Districts and Service Centers and Fiscal Year
Examination Coverage: Individual Income Tax Returns Examined
by Size of Adjusted Gross Income and Fiscal Year
Returns Examined with Unagreed Recommended Additional Tax After Examination
by Type and Size of Return and Fiscal Year
Returns Examined Involving Protection of the Revenue Base
by Type and Size of Return and Fiscal Year
Examination Coverage: Returns Examined Resulting in Refunds
by Type and Size of Return and Fiscal Year
Returns of Tax-Exempt Organizations, Employee Plans, and Government Entities Examined
by Type of Return and Fiscal Year
Returns of Tax-Exempt Organizations and Employee Plans Examined, and Recommended Additional Tax After Examinatinon
by Type of Examination and Fiscal Year
Returns of Tax-Exempt Organizations, Employee Plans, and Tax-Exempt Bonds Examined
by Type of Examination and Fiscal Year
Determination Letters Issued on Employee Pension Plans
by Type and Disposition of the Plan and Fiscal Year
Tax-Exempt Guidance and Other Regulatory Activities
Applications for Tax-Exempt Status
by Organization Type and Internal Revenue Code Section and Fiscal Year
Tax-Exempt Organizations and Non-Exempt Charitable Trusts
Delinquent Collection Activities
Criminal Investigation Program
by Status or Disposition and Fiscal Year
Civil Penalties Assessed and Abated
by Type of Tax and Penalty and Fiscal Year
Information Reporting Program
In addition to receiving taxpayers' self-reported income and tax on those tax returns that are filed, the IRS receives independent information about income received and taxes withheld on information returns, such as Forms W-2 and 1099 from employers and other third parties. With its Automated Underreporter Program, the IRS matches these information returns to tax returns and contacts taxpayer to resolve discrepancies.
By Returns Received, Contacts, and Additional Tax and Interest Assessed
Math Errors on Individual Income Tax Returns
During the routine processing of tax returns, the IRS checks for mathematical and clerical errors before refunds are paid,
By type of error
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