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Company car tax calculator

What a company car costs you in tax a month in the current tax year, worked out from the CO2 table.

Enter your own figures and check the selected options. Results update automatically below as you type. Fields are required unless marked optional.

Where you pay income tax

Scottish rates apply if your main home is in Scotland. Wales uses the same rates as England.

Your yearly pay before tax, National Insurance (NI) and other deductions.

The car’s value for tax, including options. Use the P11D value from your employer or quote, not the lease payment or used-car price.

Fuel type

This calculator supports petrol, hybrid and fully electric cars. It cannot estimate tax for diesel cars.

Emissions

Use the CO2 figure from the vehicle’s V5C registration certificate or manufacturer. The electric-only range field appears when it is needed. Selecting fully electric sets CO2 to 0.

Car available for part of the tax year (optional)

Leave dates blank for the whole tax year. A blank date uses the start or end of that tax year. Both dates count. Only subtract days that qualify under HMRC’s unavailability rules; check with your employer if unsure. Enter 0 if there were no unavailable days. A blank also counts as 0. Tax year: .

Your estimate

This estimate covers the income tax on the company car you enter. Take-home pay is salary after income tax and employee National Insurance (NI). Pension contributions, student loan repayments and other deductions are not included.

Enter your details above to see your estimate.

How company car tax works

A company car you can use privately is a benefit in kind. Its taxable value, the cash equivalent, is the car's P11D value times an appropriate percentage that HMRC publishes each tax year, set by the car's CO2 emissions and, for low-emission cars, its electric range. The percentages run from for a fully electric car up to a maximum of . The cash equivalent is added to your income to work out the extra income tax, with no employee National Insurance on the benefit. If the car was only available for part of the year, the value is reduced in proportion.

This page does not support diesel cars, employer-provided fuel for private use, or payments you make towards the car or its private use. If any of these apply, the result will not show your full position. Check with your employer.

Your employer pays Class 1A National Insurance on the benefit, which is not included here. For an electric car offered through salary sacrifice, the Electric car salary sacrifice calculator puts the tax on the benefit together with the tax and NI saved on the lease.

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