CT600 Guide - the guide to the CT600 (2008) Version 2
From 1 April 2011, you must submit your Company Tax Return online for accounting periods ending after 31 March 2010. Additionally, your tax computations and, with very few exceptions, the accounts that form part of your Company Tax Return, must be submitted in Inline eXtensible Business Reporting Language (iXBRL) format.
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Help and Guidance
- Form URL
- CT600 Guide (PDF, 174KB)
Use this CT600 Guide to help you complete form CT600 (2008) Version 2.
- Use this CT600 Guide to help you complete form CT600 (2008) Version 2.
Help with PDF files
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Forms in alternative formats
If you would like an HMRC form in large print, Braille or another alternative format, please contact the relevant HMRC helpline - see the link below.