(1)A person’s UK revenue—
(a)is medium for a financial year if the person’s UK revenue for the relevant accounting period is more than £10.2 million but not more than £36 million;
(b)is large for a financial year if the person’s UK revenue for the relevant accounting period is more than £36 million but not more than £1 billion;
(c)is very large for a financial year if the person’s UK revenue for the relevant accounting period is more than £1 billion.
(2)To determine the “relevant accounting period”, see section 56.
(3)The sums in subsection (1) are to be proportionately adjusted if the relevant accounting period of the person is a period other than 12 months.