Use supplementary pages CT600D (2015) version 3 if your company has been involved in Overseas Life Assurance Business.
PDF, 292KB, 1 page
Use these supplementary pages if your company has been involved in Overseas Life Assurance Business.
Please check if you’re required to submit this form online before downloading it and sending it in the post.
Find out more about who must submit an online Company Tax Return.
Corporation Tax: Company Tax Return (CT600 (2018) version 3)
Use form CT600 (2018) version 3 to file a Company Tax Return for accounting periods starting on or after 1 April 2015.
How to complete a Company Tax Return
Use the CT600 Guide (2018) version 3 to help you complete form CT600 (2018) Company Tax Return.
Corporation Tax: Budget changes (CT600 Budget insert)
Use CT600 Budget insert for an overview of the main Budget changes affecting Corporation Tax.
Don’t include personal or financial information like your National Insurance number or credit card details.
To help us improve GOV.UK, we’d like to know more about your visit today. We’ll send you a link to a feedback form. It will take only 2 minutes to fill in. Don’t worry we won’t send you spam or share your email address with anyone.