Section 1142B | “R&D claim”From legislation.gov.uk1 April 2026PreviousNextFor the purposes of this Part an “R&D claim” means a claim under—F1(a)section 1042C (R&D expenditure credits),F1F2(b)section 1044 (relief for SMEs: additional deduction), orF1(c)section 1054 (entitlement to R&D tax credit).F1PreviousNext