When you are logged on to E-tax for businesses (TastSelvErhverv) or E-tax for individuals (TastSelvBorger), your actions on the pages will be recorded in log files. The log files store data about all activities in the individual system and provide the Danish Customs and Tax Administration with information such as:

• what IP address you are using
• what user ID you used to log on
• what pages you have visited
• what entries you made in the fields
• if you stopped at a specific stage while reporting figures in the system
• if you logged on using your NemID E-tax password (TastSelv-kode)
• if you change user rights.

The Danish Customs and Tax Administration is legally entitled to process the data according to the Danish Act on Processing of Personal Data (Persondataloven).
We use the data in the log files to improve usability, making it easier to use the Customs and Tax Administration's digital solutions.
Furthermore, the Customs and Tax Administration has a duty to record activities in its IT solutions to prevent and investigate abuse.
The Customs and Tax Administration may also use the information as a basis for checking individuals and businesses.

The information about you will be stored for five years. You can read more about how we process your personal data in our privacy policy. 

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