Hi @RasulMammad403, happy to see that you’re working on submitting your tax information.
We actually have a German community where you can ask other instructors about their experience here.
As far as teaching on Udemy goes, you don't need to have a company in order to publish your courses. The form you need to choose will depend on where you live, whether you’re an individual or entity, and other specifics. Unfortunately, Udemy is unable to answer your tax questions as that would be considered tax advice, but I highly recommend reaching out to a local tax expert for help.
You can read the following articles to get a further explanation about Taxes on Udemy:
If you’re unsure how to submit the tax form or about what a certain phrase or section means, please reach out to Instructor Support with as much information as possible and the team will be happy to help. Thank you!