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Irm

IRM Source Files
This page provides links to the Internal Revenue Manual (IRM) source files. The listing can be sorted by the file name or the date the file was posted. To locate forms, instructions and publications please see the Forms & Publications page.

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Name Date Size Description
irm_Numerical-Index_December_2020.zip 2021-01-05 11:10:05 1.92 MB IRM Numerical Index (Document 10988 December 2020 ZIP)
irm05-008-008.zip 2026-07-20 17:10:49 1.92 MB IRM 5.8.8 Zip Source File (ZIP)
irm_Numerical-Index_October_2019.zip 2019-12-06 13:10:03 1.92 MB IRM Numerical Index (Document 10988 October 2019 ZIP)
irm_Numerical-Index_January_2021.zip 2021-02-04 17:10:07 1.92 MB IRM Numerical Index (Document 10988 January 2021 ZIP)
irm_Numerical-Index_July_2021.zip 2021-08-10 10:10:07 1.92 MB IRM Numerical Index (Document 10988 July 2021 ZIP)
irm_Numerical-Index_June_2026.zip 2026-07-08 12:10:48 1.92 MB IRM Numerical Index (Document 10988 June 2026 ZIP)
irm_Numerical-Index_September_2018.zip 2018-10-17 11:12:13 1.92 MB IRM Numerical Index (Document 10988 September 2018 ZIP)
irm_Numerical-Index_February_2020.zip 2020-03-03 19:10:04 1.92 MB IRM Numerical Index (Document 10988 February 2020 ZIP)
irm_Numerical-Index_August_2015.zip 2017-10-08 21:15:01 1.92 MB IRM Numerical Index (Document 10988 August 2015 ZIP)
irm_Numerical-Index_December_2018.zip 2019-02-04 09:09:09 1.93 MB IRM Numerical Index (Document 10988 December 2018 ZIP)
irm_Numerical-Index_June_2018.zip 2018-07-26 11:15:13 1.93 MB IRM Numerical Index (Document 10988 June 2018 ZIP)
irm01-004-016.zip 2026-03-02 12:10:52 1.93 MB IRM 1.4.16 Zip Source File (ZIP)
irm_Numerical-Index_March_2020.zip 2020-04-02 10:10:05 1.93 MB IRM Numerical Index (Document 10988 March 2020 ZIP)
irm_Numerical-Index_August_2013.zip 2017-10-08 21:00:01 1.93 MB IRM Numerical Index (Document 10988 August 2013 ZIP)
irm_Numerical-Index_November_2018.zip 2018-12-07 20:15:04 1.93 MB IRM Numerical Index (Document 10988 November 2018 ZIP)
irm_Numerical-Index_August_2018.zip 2018-09-26 11:15:09 1.94 MB IRM Numerical Index (Document 10988 August 2018 ZIP)
irm_Numerical-Index_July_2018.zip 2018-08-10 18:15:03 1.94 MB IRM Numerical Index (Document 10988 July 2018 ZIP)
irm_Numerical-Index_October_2018.zip 2018-11-08 19:15:03 1.94 MB IRM Numerical Index (Document 10988 October 2018 ZIP)
irm_Numerical-Index_January_2020.zip 2020-02-14 12:10:04 1.94 MB IRM Numerical Index (Document 10988 January 2020 ZIP)
irm_Numerical-Index_October_2020.zip 2020-11-09 09:10:06 1.95 MB IRM Numerical Index (Document 10988 October 2020 ZIP)
irm_Numerical-Index_May_2022.zip 2022-06-15 15:10:09 1.95 MB IRM Numerical Index (Document 10988 May 2022 ZIP)
irm03-030-050.zip 2025-07-28 15:10:03 1.95 MB IRM 3.30.50 Zip Source File (ZIP)
irm_Numerical-Index_March_2022.zip 2022-04-04 15:10:07 1.95 MB IRM Numerical Index (Document 10988 March 2022 ZIP)
irm_Numerical-Index_April_2021.zip 2021-05-06 14:10:09 1.97 MB IRM Numerical Index (Document 10988 April 2021 ZIP)
irm_Numerical-Index_February_2021.zip 2021-03-05 09:10:06 1.97 MB IRM Numerical Index (Document 10988 February 2021 ZIP)
irm_Numerical-Index_July_2013.zip 2017-10-08 22:00:01 1.97 MB IRM Numerical Index (Document 10988 July 2013 ZIP)
irm_Numerical-Index_October_2013.zip 2017-10-08 22:45:01 1.97 MB IRM Numerical Index (Document 10988 October 2013 ZIP)
irm08-019-012.zip 2025-05-13 13:10:04 1.98 MB IRM 8.19.12 Zip Source File (ZIP)
irm_Numerical-Index_October_2021.zip 2021-11-16 20:10:06 1.98 MB IRM Numerical Index (Document 10988 October 2021 ZIP)
irm_Numerical-Index_June_2022.zip 2022-07-07 09:10:08 1.98 MB IRM Numerical Index (Document 10988 June 2022 ZIP)
irm_Numerical-Index_December_2013.zip 2017-10-08 21:15:01 1.98 MB IRM Numerical Index (Document 10988 December 2013 ZIP)
irm_Numerical-Index_July_2022.zip 2022-08-08 17:10:07 1.98 MB IRM Numerical Index (Document 10988 July 2022 ZIP)
irm_Numerical-Index_April_2022.zip 2022-06-15 17:10:10 1.98 MB IRM Numerical Index (Document 10988 April 2022 ZIP)
irm_Numerical-Index_August_2022.zip 2022-09-07 11:10:07 1.98 MB IRM Numerical Index (Document 10988 August 2022 ZIP)
irm_Numerical-Index_September_2022.zip 2022-10-05 08:10:11 1.99 MB IRM Numerical Index (Document 10988 September 2022 ZIP)
irm_Numerical-Index_January_2015.zip 2017-10-08 21:45:02 1.99 MB IRM Numerical Index (Document 10988 January 2015 ZIP)
irm_Numerical-Index_October_2022.zip 2022-11-02 12:10:08 1.99 MB IRM Numerical Index (Document 10988 October 2022 ZIP)
irm_Numerical-Index_January_2014.zip 2017-10-08 21:45:02 1.99 MB IRM Numerical Index (Document 10988 January 2014 ZIP)
irm_Numerical-Index_September_2013.zip 2017-10-08 23:00:02 1.99 MB IRM Numerical Index (Document 10988 September 2013 ZIP)
irm_Numerical-Index_June_2015.zip 2017-10-08 22:15:02 2 MB IRM Numerical Index (Document 10988 June 2015 ZIP)
irm_Numerical-Index_March_2015.zip 2017-10-08 22:30:01 2 MB IRM Numerical Index (Document 10988 March 2015 ZIP)
irm_Numerical-Index_February_2014.zip 2017-10-08 21:30:01 2 MB IRM Numerical Index (Document 10988 February 2014 ZIP)
irm_Numerical-Index_November_2021.zip 2021-12-09 09:10:07 2 MB IRM Numerical Index (Document 10988 November 2021 ZIP)
irm_Numerical-Index_March_2014.zip 2017-10-08 22:15:02 2 MB IRM Numerical Index (Document 10988 March 2014 ZIP)
irm_Numerical-Index_December_2012.zip 2017-10-08 21:15:01 2 MB IRM Numerical Index (Document 10988 December 2012 ZIP)
irm_Numerical-Index_July_2014.zip 2017-10-08 22:00:01 2 MB IRM Numerical Index (Document 10988 July 2014 ZIP)
irm_Numerical-Index_December_2022.zip 2023-01-09 10:10:06 2 MB IRM Numerical Index (Document 10988 December 2022 ZIP)
irm_Numerical-Index_June_2014.zip 2017-10-08 22:15:02 2.01 MB IRM Numerical Index (Document 10988 June 2014 ZIP)
irm_Numerical-Index_March_2021.zip 2021-04-06 18:10:06 2.01 MB IRM Numerical Index (Document 10988 March 2021 ZIP)
irm_Numerical-Index_April_2014.zip 2017-10-08 21:00:01 2.01 MB IRM Numerical Index (Document 10988 April 2014 ZIP)