(1)For the purposes of this Part a trade carried on by a charitable trust is a charitable trade in relation to a tax year if throughout the basis period for the tax year—
(a)the trade is exercised in the course of carrying out a primary purpose of the charitable trust, or
(b)the work in connection with the trade is mainly carried out by beneficiaries of the charitable trust.
(2)For the purposes of subsection (1)(a), if a trade is exercised partly in the course of carrying out a primary purpose of the charitable trust and partly otherwise, each part is to be treated as a separate trade.
(3)For the purposes of subsection (1)(b), if work in connection with a trade is carried out partly but not mainly by beneficiaries, the part in connection with which work is carried out by beneficiaries and the other part are to be treated as separate trades.
(4)If different parts of a trade are treated as separate trades under subsection (2) or (3), a just and reasonable apportionment is to be made for that purpose of—
(a)expenses and receipts of the trade, and
(b)any amounts which are treated as adjustment income under section 228 of ITTOIA 2005 in respect of the trade, or which are post-cessation receipts arising from the trade for the purposes of Chapter 18 of Part 2 of that Act.
(5)For the rules about basis periods, see Chapter 15 of Part 2 of ITTOIA 2005.