Document Actions Who needs to register? MVT Calculator The interactive tool below is a quick way to get an indication of whether or not you need to be registered as a motor vehicle trader.  To begin using this tool, select ' Yes ' or ' No ' to answer the first question.  Depending on your response we will ask you some further questions, or a statement will appear indicating your registration requirement. This information should be used as a guide only and should not be relied upon to determine whether or not you should be registered. We encourage you to seek independent legal advice if you are unsure whether or not you need to register as a motor vehicle trader. The Motor Vehicle Sales Act 2003 (MVSA) sets out the criteria for who must register as a motor vehicle trader.  Sections 7 and 8 of the Motor Vehicle Sales Act 2003 define who is a motor vehicle trader.  Basically, all persons carrying on the business of motor vehicle trading are required to register under the MVSA. A person is treated as 'carrying on the business' of motor vehicle trading if: The person holds out that they are carrying on the business of motor vehicle trading (that is, they are actively involved in selling cars); or The person sells more than six motor vehicles within a 12 month period; or The person imports more than three motor vehicles within a 12 month period The definitions above include but are not limited