The principles of the formula (see ERSM30400) can be illustrated with a simple example:
A restricted security is given to John Coombs when its
restricted market value is 75p.
If it were unrestricted its value would have been £1.
The restriction lifts when unrestricted MV is £5.
The employee is charged on 75p on acquisition, and at that
time 25% of the share value has not be taxed.
Therefore on the lifting of the restriction there is a charge
on
£5 x 0.25 (or 25%) = £1.25.
The share is worth £5 and the employee has paid tax on
£2 (75p on acquisition and £1.25 on the lifting of the
restriction. The other £3 in growth is capital subject to CGT
but not Income Tax.
Even if the share price goes down there is still,
potentially, a charge under chapter 2.
Sara Collings is given restricted shares with an actual market
value of 70p, and an unrestricted market value of £1.
The restriction is lifted at a time when the unrestricted
market value has fallen to 60p.
Tax is paid on acquisition of the shares, based on the actual
market value of 70p (70% of £1).
When the restriction lifts, the charge is on 30% of whatever
the market value is at that time (whether it is higher or lower).
In this case, the liability will be on 30% of 60p (18p).
Conceptually, it is useful to think of the employee as
receiving a share in two instalments:
So, if the shares were then sold for 60p the employee would have a capital gains tax loss on disposal of 28p, calculated by deducting from the sale price of 60p the ' cost ', being equal to the two charges to income tax of 70p + 18p.