I have looked through the FAQs but couldn't find the answer to the question, whether or not I have to register a business on order to sell Adobe Stock photos.
I just want to safe, because tax fraud - even if it's unintended - is no joke.
Thank you for your help.
I recommend you consult with a tax advisor for the answer to your specific situation as we are not able to provide you with this information. I can tell you that all commissions earned are considered to be taxable income. You will receive a 1099 form at the end of the year and you will be obligated to pay taxes on this income.