Part 3Employment income: earnings and benefits etc. treated as earnings
Chapter 6Taxable benefits: cars, vans and related benefits
Cars: unavailability or payments for private use
145Modification of provisions where car temporarily replaced
1
This section applies if—
a
the car normally available to an employee (“the normal car”) is not available to the employee for a period of less than 30 days,
b
another car (“the replacement car”) is made available to the employee in order to replace the normal car for the whole or part of that period,
c
the employee is chargeable to tax in respect of both the normal car and the replacement car by virtue of section 120, and
d
the replacement car meets condition A or B.
2
Condition A is met if the replacement car is not materially better than the normal car.
3
Condition B is met if the replacement car is not made available to the employee under an arrangement of which the main purpose, or one of the main purposes, is to provide the employee with the benefit of a car which is materially better than the normal car.
4
If this section applies—
a
section 143 (deduction for periods when car unavailable) applies so that the replacement car is to be treated as unavailable on the days of the period during which it replaces the normal car, and
b
section 144 (deduction for payments for private use) applies as if the replacement had not been made and the replacement car were a continuation of the normal car.
5
A replacement car is regarded as materially better than the normal car if—
a
it is materially better in quality, or
b
when calculating the cash equivalent of the benefit of the replacement car, the interim sum calculated under step 4 of section 121(1) is materially higher than the interim sum calculated in relation to the normal car.