(1)In this section—
" charged " means charged to income tax in respect of the profits or gains of a trade, profession or vocation, and
" the second year of assessment " and " the third year of assessment " mean respectively the year next after, and the year next but one after, the year of assessment in which the trade, profession or vocation was set up and commenced.
(2)The person charged, or liable to be charged, shall be entitled, on giving notice in writing to the inspector within seven years after the end of the second year of assessment, to require that tax shall be charged for both the second year of assessment and the third year of assessment (but not for one or other only of those years) on the amount of the profits or gains of each such year respectively:
Provided that he may by notice in writing given to the inspector within six years after the end of the third year of assessment revoke the notice, and, in that case, tax shall be charged for both the second year of assessment and the third year of assessment as if the first notice had never been given.
(3)If, at any time during the second or third year of assessment, any such change as is hereinafter mentioned occurs in the persons engaged in the trade, profession or vocation, that is to say, if either—
(a)a change occurs in a partnership of persons engaged therein, by reason of retirement or death, or the dissolution of the partnership as to one or more of the partners, or the admission of a new partner, in such circumstances that one or more of the persons who until that time were engaged in the trade, profession or vocation continue to be engaged therein, or
(b)a person who until that time was engaged in the trade, profession or vocation on his own account continues to be engaged in it, but as a partner in a partnership,
a notice for the purposes of subsection (2) above (including the proviso thereto) must, if given after the occurrence of the change and after notice has been given as respects the change under section 154(2) of this Act (election for change not to be treated as a discontinuance)—
(i)in the case of a notice given within twelve months after the end of the second year of assessment, be signed by each of the individuals who were engaged in the trade, profession or vocation at any time between the commencement of the second year of assessment and the giving of the notice, or, in the case of a deceased person, by his legal representatives, and
(ii)in the case of a notice given after the end of the third year of assessment, be signed by each of the individuals who were engaged in the trade, profession or vocation at any time during the second or third year of assessment, or, in the case of a deceased person, by his legal representatives.
(4)In the case of the death of a person who, if he had not died, would under the provisions of this section have become chargeable to income tax for any year, the tax which would have been so chargeable shall be assessed and charged on his executors or administrators, and shall be a debt due from and payable out of his estate.
(5)There shall be made such assessments, reductions of assessments or, on a claim in that behalf, repayments of tax as may in any case be required in order to give effect to the preceding provisions of this section.