The Internal Revenue Service today issued its annual Data Book detailing the agency’s activities during fiscal year 2023 (Oct. 1, 2022 – Sept. 30, 2023), including revenue collected and tax returns processed. For FY 2023, the IRS collected approximately $4.7 trillion, or about 96 percent of the funding that supports the federal government’s operations — to fund IRS Releases 2023 Data Book Describing Agency’s Transformation Through Statistics