The latest versions of IRS forms, instructions, and publications.

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.

  1. Enter a term in the Find box
  2. Click the Search button
寻求帮助
产品编号 标题 修订版日期 发布日期
产品编号 Instruction W-8 标题 Instructions for the Requester of Forms W-8BEN, W-8BEN-E, W-8ECI, W-8EXP, and W-8IMY 修订版日期 Jun 2022 发布日期 06/28/2022
产品编号 Form W-8ECI 标题 Certificate of Foreign Person's Claim That Income Is Effectively Connected With the Conduct of a Trade or Business in the United States 修订版日期 Oct 2021 发布日期 10/04/2021
产品编号 Instruction W-8ECI 标题 Instructions for Form W-8ECI, Certificate of Foreign Person's Claim That Income Is Effectively Connected With the Conduct of a Trade or Business in the United States 修订版日期 Oct 2021 发布日期 10/05/2021