So, I'm streaming on Twitch regularly and am now applying for my Twitch Affiliate. Only I have to specify a tax ID there.
I'm 15 years old and do not earn any money through a job I could tax. Where can I find this tax ID then?
Would I have to call the BZSt for it or what does it look like.
Call your tax office. They say and / or send you.
That should have your responsible tax office for you.
Do I have to be 18 or something?
Federal Central Tax Office.
http://www.identifikationsmerkmal.de