# Corporation Tax Act 2010, Section 606: Groups

Extent: E+W+S+N.I.

(1) For the purposes of this Part a company (“the principal company”) and all its 75% subsidiaries form a group; and if any of those subsidiaries have 75% subsidiaries the group includes them and their 75% subsidiaries, and so on.
This is subject to subsection (2).
(2) A group does not include—
(a) a company (other than the principal company) which is not an effective 51% subsidiary of the principal company,
(b) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(c) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . or
(d) an open-ended investment company.
(3) A company cannot be a member of more than one group; and if a company would be a member of more than one group, section 170(6) of TCGA 1992 (capital gains tax: groups) applies to determine the group of which it is a member.
(4) Subsection (3) does not apply for the purposes of Chapter 10.
(5) In this section—
“effective 51% subsidiary” has the meaning given by section 170(7) of TCGA 1992 (groups of companies),
“75% subsidiary” has the meaning given by section 1154(3) (subsidiaries),
...
...
“open-ended investment company” has the meaning given by section 613.

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Source: https://www.legislation.gov.uk/ukpga/2010/4/section/606 (the official version)
Page: https://openlegislation.uk/corporation-tax-act-2010/section-606
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.