(1) In this section -

'loan' includes advance;

'relevant arrangement' means any arrangement, the main purpose, or one of the main purposes, of which is to avoid or reduce a charge to tax under section 438.

(2) Subject to subsection (5), where a company which is controlled by a close company makes a loan which, apart from this section, does not give rise to a charge under subsection (1) of section 438, that section applies as if the loan had been made by the close company.

(3) Subject to subsection (5), where a company which is not controlled by a close company makes a loan which, apart from this section, does not give rise to a charge under subsection (1) of section 438 and a close company subsequently acquires control of it, that section applies as if the loan had been made by the close company immediately after the time when it acquired control.