Employers who must withhold 8% labour market contribution and 30% hydrocarbon tax according to the Hydrocarbon Tax Act must be registered as enterprises with an obligation to withhold tax.

In order to be registered the employer must contact us as soon as possible and at the latest eight days after the commencement of the work related to preliminary surveys, exploration, and extraction of hydrocarbons.

In the application the employer must give the following information:

• name
• address in Denmark
• address abroad
• date of commencement of work
• expected date of termination of work
• name of assignor
• address of assignor

Send the application to hydrocarbon-tax@sktst.dk.

We make the registration and inform the employer about the employer number assigned. The employer number must be stated at the reporting and payment of the taxes withheld.

If the employer discontinues business in Denmark related to preliminary surveys, exploration, and extraction of hydrocarbons, we should be informed eight days after the discontinuance at the latest.