Company car capital contribution calculator
A company car is taxed according to its list price. This can be reduced if you make a capital contribution towards the purchase of the car. This calculator shows you how much tax could be saved.
Company cars
Where you are provided with a car by your employer, a company car benefit will arise. This is calculated by multiplying the list price of the car (when new) by the relevant percentage - which depends on the CO2 emissions figure.
The list price in this calculation can be reduced if you make a capital contribution to the cost of the car. The maximum deduction available for tax purposes is restricted to £5,000.
Calculator
Our calculator works out the annual tax saving for the employee and the NI saving for the employer. You just need to know the capital contribution and the appropriate benefit in kind percentage. In order to work out the tax saving, you also need to know the rate that the employee or director pays tax at.
Related Topics
-
HMRC updates advisory fuel rates from 1 March 2026
HMRC has published the latest advisory fuel and electric rates (AFRs) for company cars, effective from 1 March 2026. Several rates have changed since the previous quarter. What should employers be aware of?
-
5 April deadline approaching for key tax relief claims
With the end of the 2025/26 tax year now less than seven weeks away, business owners and company directors should remember that several valuable reliefs and elections must be made before 5 April. Which opportunities are about to close?
-
HMRC reminds employers about payrolling benefits deadlines
HMRC is reminding employers of key dates and preparations ahead of the transition to real-time payrolling of benefits in kind (BiKs). With an important voluntary registration deadline approaching, what do payroll teams need to know?






This website uses both its own and third-party cookies to analyze our services and navigation on our website in order to improve its contents (analytical purposes: measure visits and sources of web traffic). The legal basis is the consent of the user, except in the case of basic cookies, which are essential to navigate this website.