Section 357BLA | The R&D fraction
From legislation.gov.uk
(1)The R&D fraction for the sub-stream is the lesser of 1 and—
Formula
where—
D is the company's qualifying expenditure on relevant R&D undertaken in-house (see section 357BLB),
S1 is the company's qualifying expenditure on relevant R&D sub-contracted to unconnected persons (see section 357BLC),
S2 is the company's qualifying expenditure on relevant R&D sub-contracted to connected persons (see section 357BLD), and
A is the company's qualifying expenditure on the acquisition of relevant qualifying IP rights (see section 357BLE).
(2)This section is subject to section 357BLH (R&D fraction: increase for exceptional circumstances).