Commentary on Sections Overview Overview Section 293: Restrictions on section 292 expenses: the additional calculation rule
1207.This section supplements section 292 where a tenant is entitled under section 288 to a reduction in a receipt within section 277 or sections 279 to 282. It is based on section 37(5) of ICTA.
1208.If an amount treated under section 34 or 35 of ICTA as income of a Schedule A business has been reduced under section 37(2) of ICTA, a tenant is entitled under section 37(5) of ICTA to a deduction in respect of deemed rent under section 37(4) of ICTA only if the appropriate fraction of the amount chargeable on the superior interest exceeds the later chargeable amount. The deduction is then allowed in the same proportion as the excess bears to the appropriate fraction of the amount chargeable on the superior interest.
1209.This section provides instead for a tenant to be treated as incurring an expense for a qualifying day under section 292 only to the extent that the “daily amount of the taxed receipt” exceeds the “daily reduction of the lease premium receipt”.
1210.The daily amount of the taxed receipt and the daily reduction of the lease premium receipt are calculated according to the formulas in subsection (6):
	the formula for calculating the daily amount of the taxed receipt is the same formula used in section 292(4) to calculate the amount of the expense which the tenant is treated as incurring for each qualifying day; and
	the formula for calculating the daily reduction of the lease premium receipt spreads the reduction calculated under section 288 evenly over the receipt period of the lease premium receipt.
See Change 15 in Annex 1.
1211.It is not clear how the rule in section 37(5) of ICTA governing the interaction of section 37(2) and (4) of ICTA is intended to apply if there is more than one later chargeable amount falling to be reduced under section 37(2) of ICTA by reference to an amount chargeable on the superior interest or a later chargeable amount falls to be reduced under section 37(2) of ICTA by reference to more than one amount chargeable on the superior interest.
1212.Subsection (5) provides that where there is more than one lease premium receipt by reference to which the tenant may be treated as incurring an expense for the same qualifying day, the tenant is treated as incurring an expense for that day only to the extent that the daily amount of the taxed receipt exceeds the total of the daily reductions of each of the lease premium receipts. See Change 15 in Annex 1.