Section 1 of the IRS Data Book provides a broad overview of the main functions performed by the IRS: processing Federal tax returns and collecting revenue. It also provides additional details on returns filed, returns filed electronically, gross collections, and tax refunds by State and type of tax. View chart detailsXLSX. For additional graphs from this section, download the PDF of this year’s Data BookPDF. Highlights of the Data The IRS collected more than $4.1 trillion in gross taxes in Fiscal Year (FY) 2021 (Tables 1XLSX and 5XLSX) and issued almost 600.1 million refunds (Table 7XLSX), amounting to more than $1.1 trillion (Tables 1XLSX and 8XLSX). The IRS processed more than 261.0 million Federal tax returns and supplemental documents (Tables 2XLSX and 3XLSX) in FY 2021. Nearly 203.6 million returns and other forms were filed electronically. These represented almost 78 percent of all filings. For individual tax returns, 90.0 percent were filed electronically (Table 4XLSX). Index of Data Book Tables Returns Filed, Taxes Collected, and Refunds Issued: Tables 1–8 Table 1: Collections and Refunds, by Type of Tax, Fiscal Years 2020 and 2021XLSXTable 2: Number of Returns and Other Forms Filed, by Type, Fiscal Years 2020 and 2021XLSXTable 3: Number of Returns and Other Forms Filed, by Type and State, Fiscal Year 2021XLSXTable 4: Number of Returns and Other Forms Filed Electronically, by Type and State, Fiscal Year 2021XLSXTable 5: Gross Collections, by Type of Tax and State, Fiscal Year 2021XLSXTable 6: Gross Collections, by Type of Tax, Fiscal Years 1960–2021XLSXTable 7: Number of Refunds Issued, by Type of Refund and State, Fiscal Year 2021XLSXTable 8: Amount of Refunds Issued, Including Interest, by Type of Refund and State, Fiscal Year 2021XLSX Data for all years Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Additional applications may be needed to access linked content on this page. Get the free Adobe Acrobat® reader or Excel® viewer. Return to the IRS Data Book home page Back to Top