You must de-register the vehicle before 1 January or 1 July in order to avoid having to pay the weight-based annual motor vehicle tax for the following period. If you de-register the vehicle after the deadline, you will have to pay the full amount for the period.

If the vehicle remains de-registered through to the end of the period, you can apply for a refund of the weight-based vehicle tax for this period. For example, if you do not use the vehicle during the winter, you can reduce the tax payable by removing the vehicle's number plates and handing them in at a traffic station.

Go to The Norwegian Public Roads Administration to read more about de-registration and if you are going to de-registrate a vehicle