What should I do if the submission fails?

If you encounter repeated errors when submitting your tax return, please contact our customer service at [email protected] and provide the following information:

• Does the system display an error message? If so, please provide a brief description.
• Date and time when the error occurred
• Browser used (e.g. Firefox, Chrome, Edge – ideally with version number)
• Operating system used (e.g. Windows, macOS, Linux)

Note: For optimal use of Lohnsteuer kompakt, we recommend the latest versions of
Mozilla Firefox or Google Chrome.