240Appeals against proposed determinations
(1)Subsection (2) applies if it appears to an officer of Revenue and Customs that—
(a)a determination is needed of an amount that is to be brought into account as a receipt under this Chapter in calculating the liability to tax of a person (“the first taxpayer”), and
(b)the determination may affect the liability to corporation tax, income tax or capital gains tax of other persons.
(2)The officer may give notice (a “provisional notice of determination”) to the first taxpayer and the other persons of—
(a)the determination the officer proposes to make, and
(b)their rights under this section and section 242.
(3)A person to whom a provisional notice of determination is given may object to the proposed determination by giving notice (“a notice of objection”) to the officer.
(4)The notice of objection must be given within 30 days of the date on which the provisional notice of determination was given.
(5)If an officer gives provisional notices of determination and no person gives a notice of objection—
(a)a determination must be made by the officer as proposed in the provisional notices, and
(b)the determination is not to be called in question in any proceedings.