Find IRS forms, instructions, publications, and notices for prior years back to 1864. If a PDF file won't open, try downloading the file to your device and opening it using Adobe Acrobat. View more information about Using IRS Forms, Instructions, Publications and Other Item Files. Click on a column heading to sort the list by the contents of that column. Enter a term in the Find box Click the Search button 顯示 1 - 6 of 6尋求幫助 尋找 Prior Year » RegExReplace » Product Number Prior Year » Revision Date Prior Year » Title 每頁顯示 2550100200 搜尋清除 產品編號 標題 修訂日期 Form 8991 Tax on Base Erosion Payments of Taxpayers With Substantial Gross Receipts 2023 Form 8991 Tax on Base Erosion Payments of Taxpayers With Substantial Gross Receipts 2020 Form 8991 Tax on Base Erosion Payments of Taxpayers With Substantial Gross Receipts 2018 Instruction 8991 Instructions for Form 8991, Tax on Base Erosion Payments of Taxpayers With Substantial Gross Receipts 2023 Instruction 8991 Instructions for Form 8991, Tax on Base Erosion Payments of Taxpayers With Substantial Gross Receipts 2020 Instruction 8991 Instructions for Form 8991, Tax on Base Erosion Payments of Taxpayers With Substantial Gross Receipts 2019