The IRS recently issued its annual Data Book detailing the agency's activities during fiscal year 2024. This year’s edition marks the publication’s 30-year anniversary; the first Data Book covered fiscal years 1993 and 1994 and was available in 1995
The Data Book provides a fiscal year statistical overview of the agency’s operations including returns received, revenue collected, taxpayer services provided, tax returns examined (audits), efforts to collect unpaid taxes and other details about the work of the IRS.
The IRS processed more than 266 million returns; received almost 4.6 billion information returns; and issued close to $553 billion in refunds to individual and business taxpayers during the fiscal year. See the 2024 Data Book.