(1)The amount of the R&D tax credit to which a company is entitled for an accounting period is—
(a)14% of the amount of the Chapter 2 surrenderable loss for the period, or
(b)if less, the total amount of the company’s PAYE and NIC liabilities for payment periods ending in the accounting period.
(2)The Treasury may by order replace the percentage for the time being specified in subsection (1)(a) with a different percentage.
(3)An order under subsection (2) may contain incidental, supplemental, consequential and transitional provision and savings.