Guidance

Corporation Tax technical specifications for CT600 RIM artefacts

CT600 V3 (2024 and 2025) and V2 (2009) RIM artefacts for Corporation Tax software developers.

• From: HM Revenue & Customs
• Published: 13 August 2014
• Last updated: 6 December 2024 — See all updates

Documents

CT600 V3 (2025) Artefacts V1.993

ZIP, 6.35 MB

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CT600 V3 (2024) Artefacts V1.992

ZIP, 5.05 MB

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CT600 V2 (2009) Artefacts V3.99

2.3 MB

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Details

CT600 V3 (2025) Artefacts V1.993

Version date 18 November 2024.
Awaiting implementation into Local Test Service (LTS), Third Party Validation Service (TPVS) and live.

CT600 V3 (2024) Artefacts V1.992

Version date 29 September 2023.
Currently Local Test Service (LTS), Third Party Validation Service (TPVS) and live.

CT600 V2 (2009) Artefacts V3.99

Version date 19 June 2015.
Currently LTS, TPVS and live.

Published 13 August 2014
Last updated 6 December 2024 + show all updates

1. 6 December 2024

   CT600 V3 (2025) Artefacts V1.993 has been added.

2. 6 April 2024

   CT600 V3 (2023) Artefacts V1.991 has been removed. CT600 V3 (2024) Artefacts V1.992 is now live.

3. 2 February 2024

   CT600 V3 (2024) Artefacts V1.992 status updated from 'Awaiting implementation into LTS, TPVS and live' to 'Currently LTS, TPVS and awaiting implementation into live'. CT600 V3 (2023) Artefacts V1.991 updated from 'Currently LTS, TPVS and live' to 'Currently live'.

4. 9 October 2023

   CT600 V3 (2024) Artefacts V1.992 has been added.

5. 6 April 2023

   CT600 V3 (2022) Artefacts V1.99 has been removed. CT600 V3 (2023) Artefacts V1.991 is now live.

6. 20 March 2023

   CT600 V3 (2022) Artefacts V1.99 status updated to currently live. CT600 V3 (2023) Artefacts V1.991 status updated to currently Local Test Service (LTS), Third Party Validation Service (TPVS) and awaiting implementation into live.

7. 21 December 2022

   CT600 V3 (2023) Artefacts V1.991 has been added.

8. 20 September 2022

   CT600 V3 (2022) Artefacts V1.97 has been removed. CT600 V3 (2022) Artefacts V1.99 has been changed to 'Currently Local Test Service (LTS), Third Party Validation Service (TPVS) and live'.

9. 5 September 2022

   CT600 V3 (2022) Artefacts V1.99 has been changed to 'Currently in Local Test Service (LTS), Third Party Validation Service (TPVS) and is awaiting implementation into live'. CT600 V3 (2022) Artefacts V1.97 has been changed to 'Currently in live'.

10. 7 July 2022

    We have published CT600 V3 (2022) Artefacts V1.99 — V1.98 was not released externally. CT600 V3 (2022) V1.99 has been changed to awaiting implementation into Local Test Service (LTS), Third Party Validation Service (TPVS) and live.

11. 7 April 2022

    CT600 V3 (2021) V1.96 has been removed. CT600 V3 (2022) Artefacts V1.97 has been changed from 'currently in LTS, TPVS and awaiting implementation in live' to 'currently in LTS, TPVS and live'.

12. 3 March 2022

    CT600 V3 (2022) Artefacts V1.97 has been changed from Awaiting implementation into LTS, TPVS and live to Currently in LTS, TPVS and awaiting implementation in live.

13. 24 September 2021

    CT600 V3 (2022) Artefacts V1.97 has been added.

14. 22 February 2021

    CT600 V3 (2021) V1.96 has been added.

15. 22 September 2020

    CT600 V3 (2021) Artefacts V1.95 added.

16. 14 July 2020

    CT600 V3 (2020) Artefacts V1.94 has been changed from 'Currently live. Awaiting implementation into LTS, TPVS and live.' to 'Currently LTS, TPVS and live.', and CT600 V3 (2020) Artefacts V1.93 has been removed.

17. 29 May 2020

    CT 600 V3 (2020) Artefacts V1.94 added.

18. 6 May 2020

    CT600 V3 (2019) Artefacts V1.92 removed.

19. 8 October 2019

    V3 (2020) Artefacts V1.93 has been added.

20. 16 April 2019

    The CT600 V3 (2018) Artefacts V1.9 has been updated to CT600 V3 (2019) Artefacts V1.92.

21. 13 April 2018

    V3 (2017) Artefacts V1.8 has been removed.

22. 31 January 2018

    The V3 (2015) Artefacts V1.7 has been superseded by V1.8 and CT600 V3 (2018) Artefacts V1.9 has been added.

23. 19 October 2017

    CT600 V3 (2015) Artefacts V1.8 has been added.

24. 21 December 2016

    The CT600 V3 (2015) Artefacts V1.4 has been updated to version V1.7.

25. 22 July 2015

    The CT600 V2 (2009) Artefacts V3.98 has been updated to version V3.99 and the CT600 V3 (2015) Artefacts V1.3 has been updated to version V1.4.

26. 9 February 2015

    Updated ZIP versions.

27. 13 August 2014

    First published.