Commentary on Sections Overview Overview
1352.This Chapter applies the rules about a change of basis to property businesses, broadly as those rules apply to trades. The main rules for trades are in Chapter 17 of Part 2 of this Act.
1353.Section 21A of ICTA provides that “the profits of a Schedule A business are computed in the same way as the profits of a trade are computed for the purposes of Case I of Schedule D”. And section 21B of ICTA specifically applies the rules for change of accounting basis in FA 1998.
1354.The rules in Schedule 22 to FA 2002 apply to property businesses because they have effect “in place of” the 1998 rules (see section 64(6) of FA 2002), even though the necessary textual amendment to section 21B of ICTA was overlooked.
1355.So the change of basis rules apply to a Schedule A business.
1356.Section 65A(5) of ICTA provides that “the income from an overseas property business shall be computed … in accordance with the rules applicable to the computation of the profits of a Schedule A business”.
1357.Although the change of basis rules apply to a Schedule A business, they do so by virtue of section 21B of ICTA. That section deals with “other rules applicable to Case I of Schedule D”. On the other hand, section 21A of ICTA deals with rules about the computation of profits of a trade. So section 65A of ICTA imports only the computation rules in section 21A and the change of basis rules do not apply to an overseas property business.
1358.The following trading income rules (in Chapter 17 of Part 2 of this Act) cannot apply to a property business. So there is no corresponding rule in this Chapter:
	Section 226: Professions and vocations;
	Sections 236 and 237: Change from realisation basis to mark to market (A property business cannot hold assets that are valued on a mark to market basis.);
	Sections 238 and 239: Barristers and advocates; and
	Section 240: Liability of personal representatives if person liable dies. (This section applies if an adjustment income charge is spread: none of the spreading rules applies to a property business.)
1359.The following trading income rules apply to property businesses but are not in separate sections in this Chapter:
	Section 231: Calculation of the adjustment; (This rule is applied by section 330(1).)
	Section 234: No adjustment for certain expenses previously brought into account; (This rule is applied by section 330(4).)
	Section 235: Cases where adjustment not required until assets realised or written off. (A property business cannot have trading stock or work in progress; the rule about depreciation is in sections 333 (2) and 334(2).)