Find IRS forms, instructions, publications, and notices for prior years back to 1864.

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Número de producto Título Fecha de revisión
Instruction CT-1 Instructions 2004
Instruction CT-1 Instructions 2003
Instruction CT-1 Instructions 2002
Instruction CT-1 Instructions 2001
Instruction CT-1 Instructions 2000
Instruction CT-1 Instructions 1999
Instruction CT-1 Instructions 1998
Instruction CT-1 Instructions 1997
Instruction CT-1 Instructions 1996
Instruction CT-1 Instructions 1995
Instruction CT-1 Instructions 1994
Instruction CT-1 Instructions 1993
Instruction CT-1 Instructions 1992
Instruction CT-1 Instructions 1991
Instruction CT-1 Instructions 1990
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
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
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
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 2013
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

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