Corporation Tax Act 2010 section 329J

The mixed pool of qualifying pre-commencement onshore expenditure and supplement previously allowed

Section 329J dealt with the calculation of the mixed pool of qualifying pre-commencement onshore expenditure and any supplement that had previously been allowed, as part of the ring fence expenditure supplement regime for oil and gas companies. However, this section was repealed with effect for accounting periods ending on or after 5 December 2013.

• This section formed part of Chapter 5A (sections 329A–329T) of the Corporation Tax Act 2010, which provided rules for ring fence expenditure supplement relating to onshore oil and gas activities.
• The section addressed how to calculate the "mixed pool" — a combination of qualifying pre-commencement onshore expenditure and any supplement amounts that had previously been claimed or allowed.
• The mixed pool concept was relevant to companies engaged in UK onshore oil and gas extraction, helping to determine the base on which additional tax relief (the supplement) could be calculated in subsequent periods.
• The entire Chapter 5A, including this section, was repealed by Finance Act 2015 (Schedule 11, paragraph 13), taking effect for accounting periods ending on or after 5 December 2013.

---