Section 279D | The ring fence amount
From legislation.gov.uk
(1)In section 279C “the ring fence amount” means the amount given by the formula—
Formula
(2)In this section—
Formula
UR is the amount given by multiplying the upper limit by—
AR is the total amount of any ring fence profits that form part of the augmented profits of the accounting period,
NR is the total amount of any ring fence profits that form part of the taxable total profits of the accounting period, and
A is the amount of the augmented profits of the accounting period.