How exactly would this apply to US citizens under 18? Would the W-9 still need to be filled out?
Yes, it is for all US citizens.
If you are a US person check Yes. Then fill out the very short form. It asks for your name address and social security number and if you will file your taxes as an individual or a corporation.
If a person has USA account but he lives in another country except USA, what should he use either YES or NO?
And what about for the buyers, will they also fill the form?
The form is for the purpose of paying taxes on a seller’s earnings. Buyers do not earn, so they do not fill out the form.
I also found this just Fiverr setting up options.
Us sellers only brother
Skip it, Its only applicable for us seller.
I seem to remember if you are not a US citizen you need to at least mark the “No” box.
Do I need to fill it out? I only earn about $70 on Fiverr. I don’t work or have a source of income. I’m still young and being supported. What will happen if I don’t fill it?
Do you have a Social Security number?
Every US citizen must complete the W-9, but if you make less than $20,000, Fiverr will not send a W2 to the tax authorities.
When I was a teenager I had to fill one out.
Also, if you do not complete it your profile will be closed.