46(1)Omit subsection (1).
(2)In subsections (2) and (3), for “section 520, 522, 523 or 526 as those provisions apply” (in each place) substitute “section 526 as that provision applies”.
(3)After subsection (3) insert—
“(3A)In this section references to a person’s or a company’s income from patents are references to that income after any allowance has been deducted from or set off against it under section 479 or 480 of the Capital Allowances Act.”
(4)Omit subsection (4).