New Real-World CO2 Emissions Testing Set To Affect Company Car Taxation


Real-world CO2 Emissions Testing

New Real-World CO2 Emissions Testing Set To Affect Company Car Taxation

Have you heard about the new emissions testing regulations that will ultimately affect car tax?

No? Can’t say I blame you.

Without much of a fanfare, the launch date for the new testing regulations has been and gone. As of 1st September, the new vehicle type approval emissions tests have switched from the 80’s throwback NEDC (New European Driving Cycle) to the ultra-modern WLTP (Worldwide Harmonised Light Vehicle Test Procedure).

And frankly, it is probably about time.

Although the test remains lab-based, they will better replicate the actual real-world driving conditions and provide a more accurate indication of fuel consumption and emissions.

With more powerful vehicles, the introduction of speed cameras and road furniture, the year on year increases in traffic numbers and the inevitable stop/start motorway routines that this has instilled, the dynamics of driving are now very different to 35 years ago. And until now this has not been accurately reflected in CO2 values.

Enter stage left … the WLTP.

To create more realistic driving conditions the new test will have, among others:

  • higher average & maximum speeds
  • longer test distances
  • more dynamic & representative accelerations and decelerations
  • greater range of driving situations

Although the tests are now more reflective of what happens on our roads, there will, in fact, be an impact on the recorded CO2 emissions. Quite expectedly, the CO2 emissions will be higher than under the NEDC, with some reports suggesting an increase of over 10%. This will have a threefold impact on car fleet management.

Firstly, the movement of official CO2 emissions data for a car fleet will impact the carefully constructed fleet CO2 emission targets.

Secondly, it will impact capital allowance claims as cars will move above the new threshold for claiming the standard rate of 18% which, as of 2018, will be 110 g/km.

Thirdly, it will effectively move the BiK of a car two brackets higher.

Although the EU has suggested the scheme should not be used as a tax grab for national governments, there needs to be an alignment of CO2 thresholds with the introduction of the WLTP. It has been announced that the regulations will not impact directly on car tax until at least April 2019. This is the date for which HMRC have suggested the exiting NEDC figures will continue to be used for taxation purposes. And they have also suggested the review of CO2 thresholds to be used beyond that date will be announced in the Nov 2017 budget.

And of course it is not just the potential increased personal taxation forced upon an employee who may be renewing a like-for-like vehicle but with a new WLTP grading, there is also the potential increased employers NI contributions. Using a Fleetworx client as an example, moving a fleet of 389 cars two BiK brackets will impose an additional £35,000 in employers NI contributions.

So, although the introduction of WLTP is universally welcome, it is basically a watching brief between now and the various staging dates to keep track of looming administrative and cost challenges.

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