13(1)In section 138 of that Act, after subsection (2) (charge where asset ceases to belong to trader) there shall be inserted—
“(2A)Where one or more additional VAT rebates have been made in respect of the expenditure at any time before the relevant event, the amount of the allowance and the amount of the expenditure shall each be treated for the purposes of subsection (2)(a) and (b) above as reduced by the aggregate amount of such of those rebates as fell, or fall, to be treated as trading receipts under subsection (3A) below.”
(2)After subsection (3) of that section there shall be inserted—
“(3A)In any case where—
(a)a person carrying on a trade has incurred allowable scientific research expenditure of a capital nature as mentioned in paragraph (a) or (b) of section 137(1), and
(b)an additional VAT rebate in respect of that expenditure is made to him at any time before the relevant event occurs in relation to the asset in question,
then, unless that rebate falls to be brought into account for the purpose of making allowances and charges under Part I or Part II, an amount equal to the rebate shall be treated as a trading receipt of the trade accruing for the chargeable period related to the making of the rebate or, if the rebate is made on or after the date on which the trade is permanently discontinued, accruing immediately before the discontinuance.”
(3)At the end of that section there shall be added—
“(8)For the purposes of subsections (2) and (3) above, any question arising whether the relevant event occurred in or after, or (as the case may be) before, the chargeable period for which an allowance is given in respect of the expenditure there mentioned shall be determined without reference to the making of any allowance by virtue of section 137(1A); but this subsection is without prejudice to any question as to the amount of the expenditure or of the allowance for the purposes of those subsections.”