(1)This section applies if—
(a)section 213(2) applies to an issue of shares, and
(b)section 158(1) and (2) (form and amount of EIS relief) applies in the case of that issue as if part of the issue had been issued in a previous tax year.
(2)This subsection explains how the calculation under section 213(2) is to be made.
Step 1
Apportion the amount referred to as “R” between the tax year in which the shares were issued and the previous tax year by multiplying that amount by the fraction—
where—
A is the amount on which the investor obtains EIS relief in respect of the shares treated as issued in the tax year in question, and
B is the sum of that amount and the corresponding amount in respect of the shares treated as issued in the other tax year.
Step 2
In relation to each of the amounts (“R1” and “R2”) so apportioned to the two tax years, calculate the amounts (“X1” and “X2”) that would be given by the formula if there were separate issues of shares in those tax years.
In calculating amounts X1 and X2, apply section 220 if appropriate but do not apply section 218.
Step 3
Add amounts X1 and X2 together.
The result is the required amount.