My main activity is scientific research. I live in Germany supported by a fellowship provided by an independent non-governmental and non-profit association of German research . This fellowship is explicitly exempt of taxes.
Additionally to the fellowship, I gained last months some amount trading cryptocurrencies.
1) how do I need to declare taxes? since the fellowship is explicitly exempt of taxes in the contract I received, I assume I need to declare only the amount I gained by cryptocurrencies.
2) will my health insurance change the fee? the current health insurance I have is a private health insurance according ,257, para 2a, section 2a of the SGB (sozialgesetzbuch)
3) Is there any official guide where it is mentioned where, when and how I must declare?
Sorry for writing in English. I am a foreigner living in Germany, I have no idea how taxes are handled here.
Thanks for your comments.