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Corporation Tax forms
Find the Corporation Tax forms you need and any associated guides, notes, and supplementary pages.
Starting up a company or organisation
Authorising your agent to act on your behalf
Company Tax Return (CT600) forms and guidance
Company Tax Return (CT600) supplementary pages forms and guidance
- Corporation Tax: close company loans and arrangements to confer benefits on participators (CT600A (2015) Version 3)
- Supplementary pages CT600A (2015) version 3: close company loans and arrangements to confer benefits on participators
- Corporation Tax: controlled foreign companies, foreign permanent establishment exemptions, hybrid and other mismatches (CT600B (2022) version 3)
- Supplementary pages CT600B: controlled foreign companies and foreign permanent establishment exemptions, hybrid and other mismatches
- Corporation Tax: group and consortium relief (CT600C (2018) version 3)
- Supplementary pages CT600C: group and consortium relief
- Corporation Tax: insurance (CT600D (2015) version 3)
- Supplementary pages CT600D: insurance
- Corporation Tax: charity and Community Amateur Sports Clubs (CT600E (2015) version 3)
- Supplementary pages CT600E: charities and community amateur sports clubs
- Corporation Tax: Tonnage Tax (CT600F (2015) version 3)
- Supplementary pages CT600F: Tonnage Tax
- Corporation Tax: cross-border royalties (CT600H (2015) Version 3)
- Supplementary pages CT600H: cross-border royalties
- Corporation Tax: supplementary charge in respect of ring fence trades (CT600I (2019) version 3)
- Supplementary pages CT600I: supplementary charge in respect of ring fence trades
- Corporation Tax: disclosure of tax avoidance schemes (CT600J (2015) Version 3)
- Supplementary pages CT600J: disclosure of tax avoidance schemes
- Corporation Tax: Restitution Tax (CT600K (2017) version 3)
- Supplementary pages CT600K: Restitution Tax
- Corporation Tax: research and development (CT600L (2022) version 3)
- Supplementary pages CT600L: research and development
- Corporation Tax: Freeports (CT600M (2022) version 3)
- Supplementary pages CT600M: Freeports
Reclaim tax paid by close companies on loans to participators
Return of Income Tax on company payments
Return for non-qualifying company distributions
Return of stock dividends
Disincorporation Relief
Research and Development tax relief
Notes to paper forms
Published 14 February 2007
Last updated 1 April 2021 + show all updates
Last updated 1 April 2021 + show all updates
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Added Corporation Tax for Company Tax Return document for 2021 to collection.
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First published.