CT600 V3 (2027), CT600 V3 (2026) and CT600 V2 (2009) RIM artefacts for Corporation Tax software developers.
CT600 V3 (2027) Artefacts V1.995
, 6.75 MB
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CT600 V3 (2026) Artefacts V1.994
, 6.7 MB
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CT600 V2 (2009) Artefacts V3.99
, 2.3 MB
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CT600 V3 (2027) Artefacts V1.995
Version date 25 September 2026.
Awaiting implementation into Local Test Service (LTS), Third Party Validation Service (TPVS) and live.
CT600 V3 (2026) Artefacts V1.994
Version date 10 October 2025.
Currently Local Test Service (LTS), Third Party Validation Service (TPVS) and live.
CT600 V2 (2009) Artefacts V3.99
Version date 19 June 2015.
Currently Local Test Service (LTS), Third Party Validation Service (TPVS) and live.