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Changing your vehicle details on your registration certificate
If you make any changes to your vehicle or any of the details shown on your registration document or certificate are incorrect, eg colour, engine, fuel type (propulsion), cylinder capacity, seating capacity or weight of a goods vehicle, you must tell the Driver and Vehicle Licensing Agency (DVLA).
What you need to do
What happens next
The DVLA will aim to deliver a registration certificate to you within two to four weeks of receiving your application. However, please allow up to four weeks before contacting the DVLA.
Changes that may affect the cost of vehicle tax
The changes listed below may affect the amount of vehicle tax you pay and you may have to re-tax your vehicle at a DVLA local office. If your tax disc shows the old details, you should apply for an exchange licence on form V70. If you do not have a current tax disc you should apply for one on form V10, or form V85 for a heavy goods vehicle (HGV). Forms V70, V10 and V85 are available for download from the vehicles forms link below or DVLA local offices. The V10 and V85 are also available from Post Office® branches.
Changes to the cylinder capacity (engine size)
If there has been a decrease in your cylinder capacity that affects the rate of vehicle tax you pay, you must produce written evidence to the DVLA showing details of the new engine number and cylinder capacity (cc).
Written evidence can be:
If you increase the engine size you do not need to produce any evidence.
Changes to fuel type
The DVLA will need written confirmation of changes to fuel type for vehicles registered after 1 March 2001.
Change to the number of seats on a bus
A change to the number of seats including the drivers seat may affect the amount of vehicle tax you pay.
Changes to the revenue weight for larger vehicles
For changes to the revenue weight you will need to produce a plating certificate or design weight certificate
Change of taxation class to disabled
If you change the tax class of your vehicle to disabled you will need to produce the appropriate exemption certificate.
If you change any of the following, you must contact a DVLA local office, who will advise if your vehicle requires inspection by them: