4(1)If—
(a)a person makes a disposal to which this Schedule applies as a result of paragraph 1(1)(b), and
(b)the person would not be liable under paragraph 6 to pay an amount on account of the person’s liability to capital gains tax for the tax year concerned,
the person is not required to make or deliver a return under this Schedule in respect of the disposal.
(2)In determining whether sub-paragraph (1)(b) applies, it is to be assumed that the person is required to make a return under this Schedule in respect of the disposal.