Section 203(2) ITEPA 2003 covers the general rule for finding the cash equivalent of a benefit. The cash equivalent is:
less
For the meaning of "made good" see
EIM21120.
If a benefit is shared by a number of people, only some of
whom are directors or employees, you will have to apportion the
expenditure in order to arrive at the taxable benefit (Section 204
ITEPA 2003). There is more about apportionment at
EIM21200.