(1) If the shares are (or interest in shares is) acquired before the intellectual property agreement is made, or before any transfer of intellectual property pursuant to it, and any benefit deriving from the intellectual property agreement or any such transfer is received by the employee in connection with the shares (or interest in shares), the taxable amount determined under section 448 (post-acquisition benefits from securities: amount of charge) is to be treated as nil.

(2) But this section does not apply if something which affects the shares (or interest in shares) has been done (at or before the time when the intellectual property agreement is made or intellectual property is transferred) as part of a scheme or arrangement the main purpose (or one of the main purposes) of which is the avoidance of tax or national insurance contributions.