Unpaid guest researchers/guest PhD students, EU/EEA/Swiss citizens

EU citizens may freely enter Denmark and remain in the country for up to three months without an EU residence permit.

If the unpaid guest researcher/guest PhD student is staying in Denmark for more than three months, he/she needs an EU residence permit. The application for the EU residence permit has to be submitted before the expiry of the three-month period.

The unpaid guest researcher/guest PhD student is allowed to start working before the EU residence permit is issued.

Accompanying family members
Family members who accompany or join the unpaid guest researcher/guest PhD student may also get a registration certificate on the condition that the person having the primary right of residence has established real and actual residence in Denmark.

If the family member is not an EU/EEA/Swiss citizen, a residence card will be issued.

Process at DTU
To start the application process for an EU residence permit, we need:

  • Given name(s) (as it appears in the passport)
  • Surname (as it appears in the passport)
  • Gender
  • Email address
  • Nationality
  • Date of birth (dd/mm/yyyy)
  • Period of stay (dd/mm/yyyy - dd/mm/yyyy)
  • Title
  • An invitation letter from DTU

After receiving the above-mentioned letter, Corporate HR sends the unpaid guest researcher/guest PhD student guidelines on how to apply for an EU residence permit.

Note: Documentation of sufficient resources to finance the stay is required, as DTU will not pay any salary.

Mails/questions regarding guests or the Guest Researcher System, please contact guestresearcher@dtu.dk.

If you need an employer’s declaration to be filled in, please contact DTU Service Portal

If your Danish work and residence permit expires due to the expiration date of your passport and you need to extend it, please contact DTU Service Portal

For other inquiries, please contact HR-Recruitment@dtu.dk
Updated 03 oktober 2025