Bringing your car
If you bring a vehicle to Denmark and you take up residence in Denmark, the vehicle must be registered to Danish number plates within 14 days of arrival, and you must pay registration tax.
If you are bringing a car on foreign number plates into Denmark, you must present the car to the tax authorities (SKAT), for assessment. You will then have to pay Danish registration tax based on the assessed value. After that Danish number plates will be issued. Depending on certain criteria, you may be required to pay customs or VAT when bringing your car to Denmark.
Read more about how to register your car and which documents to bring at the different stages on the website of Skattestyrelsen.