“(2) Profits of a trade arising to a non-UK resident are chargeable to income tax under this Chapter if they arise – (a) from a trade carried on wholly in the United Kingdom, or (b) in the case of a trade carried on partly in the United Kingdom and partly elsewhere, from the part of the trade carried on in the United Kingdom.” (a) from a trade carried on wholly in the United Kingdom, or (b) in the case of a trade carried on partly in the United Kingdom and partly elsewhere, from the part of the trade carried on in the United Kingdom.”
“(1) If – (a) a firm carries on a trade, and (b) any partner in the firm is chargeable to income tax, the profits or losses of the trade are calculated on the basis set out in subsection (2) or (3), as the case may require. (2) For any period of account in which the partner is a UK resident individual, the profits or losses of the trade are calculated as if the firm were a UK resident individual. (3) For any period of account in which the partner is non-UK resident, the profits or losses of the trade are calculated as if the firm were a non-UK resident individual.”
“1715 This clause [ie section 849] contains the basic rules for calculating the profits of a firm. It is based on section 111 of ICTA. 1716 If some of a firm’s partners are resident in the United Kingdom and some are not, the profits of the firm’s trade must be calculated on different bases. For the resident partners, the calculation includes profits arising outside the United Kingdom; for the non-resident partners, the calculation is restricted to profits arising in the United Kingdom. 1717 Section 111 of ICTA is not explicit that the profits may have to be calculated on more than one basis. This clause brings together the rules for resident and non-resident partners. Subsection (1) introduces the idea that more than one calculation may be needed.”
“In 2007/08, Mr Vaines was resident in the UK. It therefore follows from section 849 (1) and (2) that the profits of the … partnership trade are to be calculated “as if the firm were a UK resident individual”, the “firm” for this purpose being a collective description of Mr Vaines and his fellow partners … . The trade in question is the actual trade of SSD, … . It is not a separate trade carried on by Mr Vaines alone, but the trade of SSD carried on collectively by himself and his fellow partners.”