Section 11(g) of ITA

(g)     an allowance in respect of any expenditure actually incurred by the taxpayer, in pursuance of an obligation to effect improvements on land or to buildings, incurred under an agreement whereby the right of use or occupation of the land or buildings is granted by any other person, where the land or buildings are used or occupied for the production of income or income is derived therefrom: Provided that

(i)      the aggregate of the allowances under this paragraph shall not exceed the amount stipulated in the agreement as the value of the improvements or as the amount to be expended on the improvements or, if no amount is so stipulated, an amount representing the fair and reasonable value of the improvements;

[Subparagraph (i) substituted by section 18 of Act 25 of 2015 effective on 8 January 2016]

(ii)     any such allowance shall not exceed for any one year such portion of the aggregate of the allowances under this paragraph as is equal to the said aggregate divided by the number of years (calculated from the date on which the improvements are completed, but not more than 25 years) for which the taxpayer is entitled to the use or occupation;

(iii)    if-

(aa)   the taxpayer is entitled to such use or occupation for an indefinite period; or

(bb)   the taxpayer or the person by whom such right of use or occupation was granted holds a right or option to extend or renew the original period of such use or occupation, the taxpayer shall for the purposes of this paragraph be deemed to be entitled to such use or occupation for such period as represents the probable duration of such use or occupation;

[Subparagraph (iii) substituted by section 19 of Act 7 of 2010 and section 18 of Act 25 of 2015 effective on 8 January 2016]

(iv)    the aggregate of the allowances under this paragraph in respect of any building or improvements referred to in section 13(1) or 27(2)(b) shall not exceed the cost (after the deduction of any amount which has been set off against the cost of such building or improvements under section 13(3) or section 27(4)) to the taxpayer of such building or improvements less the aggregate of the allowances in respect of such building or improvements made to the taxpayer under the said section 13(1) or 27(2)(b) or the corresponding provisions of any previous Income Tax Act;

(v)     ……….

(vi)    the provisions of this paragraph shall not apply in relation to any such expenditure incurred if the value of such improvements or the amount to be expended on such improvements, as contemplated in paragraph (h) of the definition of “gross income” in section 1, does not for the purposes of this Act constitute income of the person to whom the right to have such improvements effected has accrued;

(vii)   if during any year of assessment the agreement whereby the right of use or occupation of the land or buildings is granted is terminated before expiry of the period to which that taxpayer was entitled to the use or occupation, as contemplated in paragraph (ii) or (iii), so much of the allowance which may be allowed under this paragraph, which has not yet been allowed in that year or any previous year of assessment, shall be allowable as a deduction in that year of assessment;