For any accounting period of a firm a partner's share of a profit or loss of a trade carried on by the firm is determined for corporation tax purposes in accordance with the firm's profit-sharing arrangements during that period.

This is subject to sections 1263 F5to 1264A.

If a firm F1makes qualifying charitable donations, a partner's F2share of the donations is determined for corporation tax purposes in accordance with the firm's profit-sharing arrangements during the accounting period of the firm in which the F3donations are made.

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In this section and sections 1263 and 1264 “profit-sharing arrangements” means the rights of the partners to share in the profits of the trade and the liabilities of the partners to share in the losses of the trade.