Section 166 | Exemption for small and medium-sized enterprises
From legislation.gov.uk
(1)Section 147(3) and (5) do not apply in calculating for any chargeable period the profits and losses of a potentially advantaged person if that person is a small or medium-sized enterprise for that chargeable period (see section 172).
(2)Exceptions to subsection (1) are provided—
(a)in the case of a small enterprise, by sections 167 and 167A, and
(b)in the case of a medium-sized enterprise, by sections 167 and 168.