Section 357SA | 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 1216CF of CTA 2009 (additional deduction for qualifying expenditure) 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 programme trade.