I have the opportunity to participate in the Twitch Affiliate Program. But since I'm still a minor, I don't have a tax number, can I take it from my mom? She agrees with everything.
Then the whole Affi program has to run on your mother and name and so on and not on you
And your mother has to state possible income at the latest in the annual tax return
Please don't do this. You get yourself into trouble…
Legal consequences can be uncomfortable and expensive.
No. You should have your own tax identification number.
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"Every newborn child and all new citizens are automatically assigned a tax identification number when they first register in Germany. It remains valid for life and does not change if you move or get married.
You can usually also find your tax identification number
in the income tax assessment,
on the income tax certificate.
You can request your tax identification number using the input form from the Federal Central Tax Office (BZSt) if
You within 3 months of your first registration in Germany
For your newborn child within 3 months of birth
have not yet received a letter with the tax identification number. "
Source: https://verwaltung.bund.de/leistungsverzeichnis/DE/leistung/LeiKa/102730390
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Here is the form to have the tax identification number sent to you in case it can't be found / forgotten / etc. Should be:
https://www.bzst.de/SiteGlobals/Kontaktformulare/DE/Steuerliche_IDNr/Mitteilung_IdNr/mitteilung_IdNr_node.html
You write a lot about the identification number here. However, anyone who is commercially active requires a tax number.