I have a B permit until 2024.
I recently completed my CELTA (qualification to become an English teacher)

I have since been doing some teaching for free to build up experience.
However, I am now being offered payment from some language schools for lessons and also some online websites for lessons online.

In the past in Switzerland I was working for UBS and all taxes/pension/everything was sorted for my by the company.

However, now I have no idea how I am supposed to declare what I am earning.
Do I have to make anyone aware that I am working for various institutions/does this make me technically "self-employed"

Any help is much appreciated as I find all of this a complete minefield.

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