If you need to pay tax on your company car, you can use this service to:

  • check your company car’s details
  • tell HM Revenue and Customs (HMRC) about any changes to your car since 6 April
  • update your fuel benefit, if your employer pays for fuel

You’ll need:

  • the car’s list price (including VAT and accessories) - you can get this from the manufacturer or your employer
  • CO2 emissions information

Start now

Before you start

When you can’t use this service

You can’t use this service if:

  • you were offered a ‘cash allowance’ instead of a car after 6 April 2017
  • you used either of the following after 6 April 2017: a flexible benefits package with a cash option, or a salary sacrifice arrangement
  • you’re part of a car averaging or car sharing scheme
  • your employer is managing benefits and expenses through the company payroll (known as ‘payrolling’)
  • you want to make updates for a company commercial vehicle, such as a van

Contact HMRC or your employer to update your details if you can’t do it online.

Check your tax code

Updating your company car details may change your tax code.