810Postponement of capital allowances to secure double taxation relief
(1)Where—
(a)a person chargeable to tax under Schedule D in respect of a trade is liable to overseas tax in respect of any income arising from the trade, being overseas tax for which relief may be given by way of credit, repayment or set off under the preceding provisions of this Part, and
(b)the conditions specified in subsection (2) below are satisfied,
he may, in claiming the relief in respect of that income, claim a postponement under this section of the relevant capital allowances operating to reduce that income for the purposes of tax for any chargeable period.
(2)The conditions are—
(a)that the law under which the overseas tax is chargeable provides for deductions or allowances to be given corresponding to capital allowances, but on a different basis such that they operate to reduce the income in question (if at all) to a less extent than the capital allowances to which the claim relates, but are calculated to operate to a greater extent than the corresponding capital allowances to reduce income arising subsequently; and
(b)that the relief falling to be so given in respect of the income in question is less than it would be if the capital allowances to which the claim relates operated to reduce the income to the same extent only as the deductions or allowances so provided for.
(3)Where a person claims a postponement under this section of capital allowances for any chargeable period, then—
(a)for the purposes of making the assessment for that period, the amount of those allowances shall be reduced by such amount as may be necessary to secure that they operate to reduce the income only to the extent mentioned in subsection (2)(b) above (or such less amount as the claimant may require); and
(b)for the purpose of making the assessment for the following period that amount shall be added to the amount of the allowances for that period, and shall be deemed to be part of those allowances or, if there are no such allowances for that period, shall be deemed to be the allowances for that period.
(4)For the purposes of any claim under this section—
(a)there shall be taken into account such only of the relevant capital allowances, and the deductions or allowances operating to reduce the income in question for purposes of the overseas tax, as are calculated to give relief in respect of the same expenditure or the same assets; and
(b)no account shall be taken of expenditure incurred or treated for the purposes of Chapter I of Part III of the [1971 c. 68.] Finance Act 1971 as incurred on or after 27th October 1970.
(5)In this section “overseas tax” means tax chargeable under the laws of any territory outside the United Kingdom, and “relevant capital allowances”, in relation to any trade, means capital allowances falling to be made in taxing the trade.
(6)This section applies (with any necessary adaptations) in relation to a profession, employment, vocation or office, and in relation to the occupation of woodlands the profits or gains of which are assessable under Schedule D, as it applies in relation to a trade.