Background: Patient portals may support patient engagement, yet they may differ largely in their characteristics.
Objectives: To compare the Austrian patient portal with 10 portals from six other countries using the TOPCOP Taxonomy.
Methods: We described the portals using openly available information.
Results: The Austrian patient portal shows basic functionality but lacks further functions that other portals partly offer.
Conclusion: Comparing portals using TOPCOP is possible and shows functions to improve usefulness of portals.
Keywords: EHR portal; Medical informatics; patient portal; taxonomy.