(1) Universal social charge payable for a tax year in respect of an individual's aggregate income for a tax year, being an individual who is a chargeable person (within the meaning of Part 41A), shall be due and payable in all respects as if it were an amount of income tax due and payable by the chargeable person under the Income Tax Acts, but without regard to section 1017 or 1031C.
(1A) For the purposes of subsection (1) and, as respects a gain realised by an individual by the exercise of a right to acquire shares in a company, section 128B shall, with any necessary modifications, apply to universal social charge as it applies to income tax and for this purpose -
(a) 'relevant tax' as referred to in section 128B shall include universal social charge,
(b) 'B' in the formula in section 128B(2) shall be the percentage which is equal to the highest rate set out in column (2) of Part 1 or column (2) of Part 2, as the case may be, of the Table to section 531AN that is in force for the tax
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