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Corporation Tax Act 2010 section 357BLB
Qualifying expenditure on relevant R&D undertaken in-house
Section 357BLB defines what counts as qualifying in-house R&D expenditure for the purposes of calculating the R&D fraction within the Patent Box regime, covering the types of spending that qualify, the requirement that the R&D is performed by the company itself, and a special reclassification rule where a foreign permanent establishment exemption applies.
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