Part 3

Employment income: earnings and benefits etc. treated as earnings
Chapter 6

Taxable benefits: cars, vans and related benefits

Cars: benefit treated as earnings

Method of calculating the cash equivalent of the benefit of a car
121
1
The cash equivalent of the benefit of a car for a tax year is calculated as follows—
Step 1
Find the price of the car in accordance with sections 122 to 124A.
Step 2
Add the price of any accessories which fall to be taken into account in accordance with sections 125 to 131.
Step 3
Make any deduction under section 132 for capital contributions made by the employee to the cost of the car or accessories. The resulting amount is the interim sum.
Step 4
...
Step 5
Find the appropriate percentage for the car for the year in accordance with sections 133 to 142.
Step 6
Multiply the interim sum by the appropriate percentage for the car for the year.
Step 7
Make any deduction under section 143 for any periods when the car was unavailable.
The resulting amount is the provisional sum.
Step 8
Make any deduction from the provisional sum under section 144 in respect of payments by the employee for the private use of the car.
The result is the cash equivalent of the benefit of the car for the year.
2
The method of calculation set out in subsection (1) is modified in the special cases dealt with in—
- section 146 (cars that run on road fuel gas), and
- section 147 (classic cars: 15 years of age or more).
3
Where the car is shared the cash equivalent is calculated under this section in accordance with section 148.
S. 121(3) substituted (1.3.2012) by The Enactment of Extra-Statutory Concessions Order 2012 (S.I. 2012/266), arts. 1, 3(2)
Pt. 3 Ch. 6 modified (6.4.2021 for the tax year 2021-22) by Finance Act 2020 (c. 14), s. 10
Words in s. 121(1) omitted (with effect in accordance with Sch. 28 para. 10(2) of the amending Act) by virtue of Finance Act 2009 (c. 10), Sch. 28 para. 2(3)
Pt. 3 Ch. 6 modified (6.4.2020 for the tax year 2020-21) by Finance Act 2020 (c. 14), s. 9
Word in s. 121(1) substituted (with effect in accordance with s. 54(6) of the amending Act) by Finance Act 2009 (c. 10), s. 54(3)
Words in s. 121(1) inserted (with effect in accordance with Sch. 28 para. 10(2) of the amending Act) by Finance Act 2009 (c. 10), Sch. 28 para. 2(2)