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 Showing 1 - 23 of 23Find Help Find Prior Year » RegExReplace » Product Number Prior Year » Revision Date Prior Year » Title Show per page 2550100200 SearchClear Product Number Title Revision Date Form CT-1X Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2024 Instruction CT-1X Instructions for Form CT-1X, Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2024 Form CT-1X Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2023 Instruction CT-1X Instructions for Form CT-1X, Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2023 Instruction CT-1X Instructions for Form CT-1X, Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2022 Form CT-1X Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2022 Form CT-1X Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2021 Instruction CT-1X Instructions for Form CT-1X, Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2021 Instruction CT-1X Instructions for Form CT-1X, Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2018 Form CT-1X Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2018 Form CT-1X Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2015 Instruction CT-1X Instructions for Form CT-1X, Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2015 Instruction CT-1X Instructions for Form CT-1X, Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2014 Form CT-1X Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2014 Instruction CT-1X Instructions for Form CT-1X, Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2013 Form CT-1X Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2013 Instruction CT-1X Instructions for Form CT-1X, Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2012 Form CT-1X Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2012 Form CT-1X Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2011 Instruction CT-1X Instructions for Form CT-1X, Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2011 Instruction CT-1X Instructions for Form CT-1X, Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2010 Instruction CT-1X Instructions for Form CT-1X, Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2009 Form CT-1X Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund 2009
