Do I need to fill a W9 if I don't earn $600 within a year? Rosie October 08, 2018 17:22 Follow This is ONLY a requirement if you earn $600 in one calendar year. Related articles When do I receive my 1099? When do I need to fill out a W9? Do you remove taxes from my payment? I want to cancel and I want my payment. Welcome to your Help Center! Comments 0 comments Article is closed for comments.