Section 357UA | Northern Ireland additional deduction
From legislation.gov.uk
(1)In this Chapter “a Northern Ireland additional deduction” means so much of a deduction under section 1217H of CTA 2009 (claim for additional deduction) as is calculated by reference to qualifying expenditure that is Northern Ireland expenditure.
(2)A Northern Ireland additional deduction forms part of the Northern Ireland profits or Northern Ireland losses of the separate theatrical trade.