This document is a supplementary tax return page used to disclose tax avoidance schemes. It requests the company name, tax reference, and period covered. Companies must provide a scheme reference number and accounting period for any notifiable tax avoidance schemes resulting in an expected tax advantage. Guidance for completing the form can be found in the Company Tax Return guide.

1. Company Tax Return form - Supplementary page
Disclosure of Tax Avoidance Schemes
CT600J (2011) Version 2
for notifiable arrangements on or after 18 March 2004
Company information
Company name
Tax reference as shown on the CT603
Period covered by this supplementary page (cannot exceed 12 months)
from (dd/mm/yyyy)
to (dd/mm/yyyy)
Important points
Guidance about when and how to complete this supplementary page can be found in the Company Tax Return guide.
- Read What supplementary pages do I need to complete and include as part of the Company Tax Return? to find out what
supplementary pages you need to complete.
- Read Important points about all supplementary pages.
- Read CT600J – Disclosure of Tax Avoidance Schemes for further guidance about completing this supplementary page
including information about the penalties that apply.
Disclosable tax avoidance schemes
Scheme Reference Number
Accounting period in which the expected
advantage arises (dd/mm/yyyy)
J1
J1A
J2
J2A
J3
J3A
J4
J4A
J5
J5A
J6
J6A
J7
J7A
J8
J8A
J9
J9A
J10
J10A
HMRC 01/12
CT600J (2011) Version 2